PLEASE HELP!!!! which statement best distinguishes between the function of genes and alleles? responses genes provide variation in traits, while alleles express traits.
A genes provide variation in traits, while alleles express traits.
B. alleles are responsible for variation in traits, while genes are responsible for the expression of traits.
C. alleles provide duplicate copies in case of mutation, while genes express all mutations
D. alleles provide duplicate copies in case of mutation, while genes express all mutations
Answers
Genes are genetic units that code for traits. Alleles are alternative forms of the same gene that express different phenotypes of the same trait. B) alleles are responsible for variation in traits, while genes are responsible for the expression of traits.
What are genes and alleles?
Genes are the hereditable DNA fragments that transmit the information needed to specify traits.
This information passes from parents to offspring, generation to generation.
Genes are physically placed and arranged in chromosomes. Each chromosome contains too many genes that might vary in length.
Alleles are different forms of a gene that result from a mutation in the original gene.
By the process of natural mutation, a gene might change into two or more alternative forms that are called alleles.
These alternative forms codify for the same trait expressing different phenotypes.
The correct option is B. alleles are responsible for variation in traits, while genes are responsible for the expression of traits.
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Related Questions
Help pleaseeeeee
How many nutrients/elements are essential for plant growth?
12
8
6
15
Answers
These six essential nutrients are nitrogen, phosphorus, potassium, magnesium, sulfur and calcium. The cool thing about these key nutrients is that they help create new cells, which then organize into plant tissue. Without these nutrients, growth and survival would not occur.
carbohydrates are more easily metabolized than lipids:
Answers
Despite, lipids having more energy per gram than carbohydrates, carbohydrates are readily available.
Additionally the conversion process is much less efficient because oxygen is required to burn fat.
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Why is ocean pollution important to society? And how many people will it help to solve this problem?
Answers
Answer:
Ocean pollution is important to society because coral reefs are the biggest suppliers of oxygen, and there are so many different species of fish, germs, bacteria, and lifeforms which live in the ocean. Microplastics are also filling the water, fish, and other animals. Birds also consume plastic because they think plastic is their food. I'm not sure how many people will solve it, but there is more discussion about it. Some start-up companies have also been collecting the waste from the ocean to make bracelets and other things with it.
Not having enough resources to satisfy all one's needs and wants
economics
O scarcity
O resource
O fixed cost
Answers
Answer:
Scarcity
Explanation:
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Answer:
Scarcity
Explanation:
Scarcity means the state of being in short supply or having a shortage of something.
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What would MOST describe the environment found in Ireland? a. Vast green lands
b. Mountains and hills
c. Dry deserts
d. Rainforests with lots of trees.
Answers
Explain osmosis using this image
Answers
Answer:
A liquid moving from an area of low concentration, to an area of high concentration through a semi-permiable membrane.
Explanation:
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identify 5 traits of an Arabian horse
large lung capacity
spotted pelt
comparatively small head
single cranial horn
vestigial wings
scales
fins
divided hooves
long fingers
smooth short pelt hair
hair tail
slender legs
Answers
Why is there “polar zones” in South America and Asia?
Answers
Answer:
North American Countries
In North America, the nations of the United States and Canada own land areas in the Arctic. The only U.S. state containing land within the Arctic Circle is Alaska. In contrast, Canada’s polar regions are quite vast, encompassing about two-fifths of its entire land mass and two-thirds of its total maritime coastline. The historic residents of North America’s polar zones are the Inuits, who have made their livelihoods hunting and fishing in the harsh climate for more than 9,000 years, though many modernly work in oil fields and support villages.
European Countries
The exclusively European nations possessing land north of the Arctic Circle are Norway, Sweden, Finland, Iceland and Denmark. Although Denmark proper doesn’t lie within the polar zone, its largest self-governing overseas administrative division -- Greenland -- does. In addition to a portion of the Norwegian mainland, Norway’s Arctic territories also include the islands of Svalbard and Jan Mayen. Vikings hailing from Norway were the European polar region’s first explorers, establishing a permanent settlement on Iceland in the ninth century and a long-lived settlement in Greenland in the 10th century.
Explanation:
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Which combination of atoms will form a molecule but not a compound?
Answers
Answer:
Any element
Explanation:
for example, oxygen is combination of atoms but not a compound, it is an element
Cheetahs have much less overall genetic diversity than their population size would predict. what is the most likely explanation for this?
Answers
The most likely explanation for cheetahs having much less overall genetic diversity than their population size would predict is a historical population bottleneck.
Cheetahs have experienced a significant reduction in population size in the past, potentially due to natural disasters, habitat loss, or human activities. This reduction led to a limited number of individuals contributing to the current population, resulting in reduced genetic variation. As a consequence, cheetahs exhibit lower genetic diversity compared to other species with similar population sizes.
The genetic bottleneck can have implications for cheetahs' adaptability, as reduced genetic diversity may limit their ability to respond to environmental changes and make them more susceptible to disease or other challenges.
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The nerve cells in a chef’s hand sense heat from a pan. The nerve cells send signals to the chef’s brain. The brain sends signals to the hand to release and drop the pan.
Answers
Answer:
We sense temperature in our environment through specialised nerve cells that project into the outer layers of the skin. These nerve cells are activated by high temperatures and capsaicin, the substance that makes chilli peppers hot. In response to a stimulus like heat or capsaicin, proteins on the surface of nerve cells called ion channels open up a channel that lets charged ions flow into the cell, setting off a nerve impulse. The impulse travels along sensory neurones to the spinal cord and then up to the brain, where it is interpreted as heat.
D
Identify structure A.
Identify structure B.
Identify structure C
С
Identify structure D.
Answers
Answer:
what structure are you trying to identify?
Explanation:
While the neurology resident, Dr. Takahashi, was performing her examination, Sally asked her what a nerve was made of exactly. Which of the following statements is true regarding the cellular structure of a neuron? The neurology resident told Sally that axons of neurons make up the nerves that transfer information between the PNS and CNS. The neurology resident told Sally that the cell body, or some, made up the nerves and that this structure was what allowed the signal to travel between the CNS and PNS. The neurology resident told Sally that neurons and their dendrites, which send and reccive signals, made up the nerves and that the information was transported only from the PNS to the CNS. The neurology resident told Sally that neurons and their dendrites, which send and receive signals, made up the nerves and that the information was transported only from the CNS to the PNS.
Answers
The statement that is true regarding the cellular structure of a neuron is; The neurology resident told Sally that neurons and their dendrites, which send and receive signals, made up the nerves and that the information was transported only from the PNS to the CNS. Option A is correct.
This statement accurately describes the composition of nerves and the direction of information transmission. Neurons, which consist of a cell body, dendrites, and an axon, are the basic building blocks of the nervous system. Dendrites receive signals from other neurons, while the axon transmits signals to other neurons.
Nerves, on the other hand, are composed of bundled axons of neurons and are responsible for transmitting information between the peripheral nervous system (PNS) and the central nervous system (CNS). The information flow typically occurs from the PNS to the CNS.
Hence, A. is the correct option.
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--The given question is incomplete, the complete question is
"While the neurology resident, Dr. Takahashi, was performing her examination, Sally asked her what a nerve was made of exactly. Which of the following statements is true regarding the cellular structure of a neuron? A) The neurology resident told Sally that axons of neurons make up the nerves that transfer information between the PNS and CNS. B) The neurology resident told Sally that the cell body, or some, made up the nerves and that this structure was what allowed the signal to travel between the CNS and PNS. C) The neurology resident told Sally that neurons and their dendrites, which send and receive signals, made up the nerves and that the information was transported only from the PNS to the CNS. D) The neurology resident told Sally that neurons and their dendrites, which send and receive signals, made up the nerves and that the information was transported only from the CNS to the PNS."--
the relationship between the structure of the cell membrane and how it applies to the characteristics of semipermeable transport.
Answers
Answer:
the primary function of the plasma membrane is to protect the cell form its surroundings. composed of a phospholipid bilayer with embeded with proteins the plasma membrane is selectively permeable to ions and organic molecules and regulates the movement of substances in and out of cells.
Explanation:
why is screening or presumptive testing important? question 4 options: it saves time. it saves money. it is less complex than dna typing. it types the blood stain/sample into abo and rh groups. all of the above
Answers
The correct answer is: all of the above. Screening or presumptive testing is a type of testing that is used to quickly and efficiently identify the presence of certain substances or characteristics in a sample. This type of testing is important for a number of reasons:
It saves time: Screening or presumptive testing allows analysts to quickly identify the presence of certain substances or characteristics in a sample, which saves time compared to more complex and time-consuming testing methods.It saves money: Screening or presumptive testing is often less expensive than more complex testing methods, which can save money in the long run.It is less complex than DNA typing: Screening or presumptive testing is generally less complex and time-consuming than DNA typing, which involves analyzing the genetic material of a sample.It types the blood stain/sample into ABO and Rh groups: Screening or presumptive testing can be used to quickly identify the ABO and Rh blood groups of a blood sample, which is important in medical settings for blood transfusions and other purposes.Overall, screening or presumptive testing is an important tool that can save time, money, and resources while providing valuable information about the characteristics of a sample.
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genome-wide expression profiling identifies a novel mirna-based panel for the detection of local recurrence in patients with pancreatic ductal adenocarcinoma
Answers
The statement you provided highlights the use of genome-wide expression profiling to identify a novel microRNA (miRNA)-based panel for detecting local recurrence in patients with pancreatic ductal adenocarcinoma (PDAC). Here's some expanded information on this topic:
Pancreatic ductal adenocarcinoma (PDAC) is a highly aggressive and deadly form of cancer that arises from the cells lining the pancreatic ducts. Local recurrence refers to the reappearance or regrowth of cancer cells in the same location or near the site of the initial tumor after treatment.
Genome-wide expression profiling is a technique used to analyze and measure the activity of thousands of genes simultaneously in a particular biological sample. It allows researchers to identify patterns of gene expression that are associated with specific conditions, including diseases like PDAC.
MicroRNAs (miRNAs) are small non-coding RNA molecules that play a crucial role in regulating gene expression. They can modulate the activity of multiple target genes and are involved in various biological processes, including cancer development and progression.
The statement suggests that through genome-wide expression profiling, researchers have identified a panel of miRNAs that show distinct expression patterns in patients with local recurrence of PDAC. This miRNA-based panel could potentially serve as a diagnostic or prognostic tool to detect the presence of recurrent disease in these patients.
The identification of such a miRNA panel could have clinical significance by providing a non-invasive or minimally invasive approach for monitoring PDAC patients for local recurrence. It may also help in tailoring personalized treatment strategies for individuals at high risk of recurrence or facilitating early intervention in case of disease relapse.
It's important to note that the specific details and findings of the study or research article you mentioned would require accessing the content directly to obtain a comprehensive understanding of the methodology, results, and implications of the study.
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which of the labeled structures is 3n in terms of number of sets of chromosomes? cotyledon, epicotyl, and radicle seed coat endosperm none are 3n. all parts of the seed are 2n.
Answers
The structure among the labeled structures in terms of the number of sets of chromosomes that is 3n is none of the given options. All parts of the seed are 2n. The correct option is C.
What are cotyledons, epicotyls, and radicles?Cotyledons, also known as seed leaves, are embryonic leaves in the seed. These leaves are sometimes modified to store food. Radicles are the embryonic roots of a plant, and they are formed by the descending portion of the embryonic axis. Epicotyl is the embryonic shoot between the cotyledons and the first true leaves of the plant.
What is endosperm?The endosperm is a tissue that surrounds the embryo and provides it with nutrients in the seed of a flowering plant. It is formed as a result of fertilization in angiosperms and is triploid in most species. The male gamete's haploid nucleus combines with the diploid nucleus of the central cell to form the endosperm.
What is ploidy?Ploidy is the number of complete sets of chromosomes found within a cell. The terms haploid, diploid, and triploid are used to describe organisms with one, two, and three sets of chromosomes, respectively. However, some plants are tetraploid, hexaploid, or octoploid, meaning they have four, six, or eight complete sets of chromosomes.
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A scientist wrote down the steps to perform a chemical experiment, but they are out of order. Help the scientist by rearranging his steps in the correct order
Answers
The purpose of an experiment is to establish cause and effect relationship.
What is an experiment?In science an experiment has to do with the process in which there is the establishment of a cause and effect relationship between the variables in the experiment. Thus the purpose of an experiment is to establish cause and effect relationship.
The correct steps in the experiment are;
Predict what happens when lead nitrate reacts with potassium iodide.
Measure 100 ml distilled water into each of two beakers.
Measure out 0.3 grams each of the solids, lead nitrate and potassium iodide.
Dissolve each solid in a separate beaker of water.
Pour both solutions into one container and slowly stir.
Watch mixture change from clear to a yellow solid and record observations.
Write a science report detailing results and conclusions.
Create a presentation and share findings with peers.
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Missing parts:
A scientist wrote down the steps to perform a chemical experiment, but they are out of order. Help the scientist by rearranging his steps in the correct order. Measure out 0.3 grams each of the solids, lead nitrate and potassium iodide. Watch mixture change from clear to a yellow solid and record observations. 1 Measure 100 ml distilled water into each of two beakers. 1 Write a science report detailing results and conclusions. Dissolve each solid in a separate beaker of water. Pour both solutions into one container and slowly stir. Create a presentation and share findings with peers. Predict what happens when lead nitrate reacts with potassium iodide.
when you send electrical impulses to one of your muscles, there is a certain level of stimulus where the muscle will first show a twitch. why don't you see a twitch before this?
Answers
A twitch occurs when one muscle fiber contracts in response to a command stimulus by the nervous system.
The time interval between the activation of a motor neuron and contraction of muscle is called the lag phase. In the duration of lag phase an action potential travels to the end of motor neuron .
This action potential release of acetylcholine and depolarization of the motor end plate. Muscle twitch has three phase latent period, a contraction phase, and a relaxation phase. A classified muscle response allows alteration in muscle tension. Twitches and spasms can be warning signs which shows the nerves that control your muscles.
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2.Which sentence uses the word passed correctly?
Responses:
Shelly was happy she passed all her classes.
Throw out any food passed its expiration date.
My house is a mile passed the library.
We drove passed the old elementary school.
3.Which word is misspelled?
Responses:
gulfs
beliefs
shelfs
bluffs
PERSON WILL GET 100 POINTS AND BRANLIEST IF I CAN GIVE IT!!
Answers
Answer: Shelly was happy she passed all of her classes and Shelfs
Explanation: The word passed is used as a past tense verb. Shelfs are spelled as Shelves.
Answer: For 2, the answer is "Shelly was happy she passed all her classes."
Explanation: The other 2 use "passed" incorrectly
Awnser: For 3, the answer is "Shelfs"
Explanation: The correct spelling is "Shelves"
What is the process of passing genes?
Answers
Transcription and translation are the two main procedures. Gene expression is the result of transcription and translation working together.
The information contained in a gene's DNA is transferred to an analogous molecule called RNA (ribonucleic acid) in the cell nucleus during transcription. However, when people discuss the passing on of genes, they typically do not refer to the passing on of genes during cell division from one cell to another.
Instead, they typically refer to genes that are passed on from parents to their offspring. Heredity or "inherited genes" refer to this. An egg from the mother and sperm from the father combine to make a fetus. Each chromosome in the egg and sperm makes up one half of the complete set. The embryo is created from the sperm and egg.
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Can small changes in just one part of the climate system have a global impact? Find what you believe to be evidence of a small change in your regional climate system. Could this have a global impact? Support your opinion using specific examples and evidence from a local news article or video and post with your discussion.
Answers
Yes, small changes in just one part of the climate system can have a global impact. For example, the melting of Arctic sea ice has the potential to impact global weather patterns and ocean currents, as well as to release methane gas from the seafloor, which is a potent greenhouse gas.
One example of a small change in a regional climate system that could have a global impact is the melting of glaciers in the Himalayas. According to a news article from the BBC, glaciers in the region are melting at an unprecedented rate due to rising temperatures. This is having a number of impacts, including changes in water availability and increased flooding risk in nearby regions.
However, the melting of glaciers in the Himalayas is also causing sea levels to rise around the world, as the meltwater flows into the oceans. This can have significant impacts on low-lying coastal regions, including increased risk of flooding and erosion, as well as impacts on ecosystems and human communities.
Overall, small changes in regional climate systems can have far-reaching impacts on the global climate, highlighting the importance of addressing climate change at both the local and global levels.
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From the information on linkage, chromosomal mapping, and many associated phenomena, what answers would you propose to the following fundamental questions?
Part A
How was it established experimentally that the frequency of recombination (crossing over) between two genes is related to the distance between them along the chromosome?
Answers
Crossing over is the exchange of chromosome segments between non-sister chromatids during meiosis. This process is one of the mechanisms responsible for genetic diversity and also serves as the basis for genetic mapping. Genetic mapping is used to determine the position of genes on a chromosome.
To establish experimentally that the frequency of recombination between two genes is related to the distance between them along the chromosome, the following steps must be followed: The frequency of recombinants is determined by cross-breeding parent organisms with different traits. Determining the distance between the two genes is the next step in the process. This is accomplished by observing the percentage of recombinant progeny that result from a particular cross. The distance between the genes is proportional to the frequency of recombinant progeny. Crossing over occurs more frequently between genes that are far apart on the chromosome than those that are close together. As a result, genes that are close together are less likely to cross over and produce recombinant offspring.
To determine the distance between genes on the chromosome, a mapping function is used. By analyzing the frequency of recombinant progeny resulting from different crosses, the distance between the genes can be calculated. This distance is proportional to the frequency of recombinants.
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involuntary actions such as heart rate and breathing are controlled by the
Answers
Involuntary actions such as heart rate and breathing are controlled by the medulla oblongata.
Medullа oblongаtа, аlso cаlled medullа, the lowest pаrt of the brаin аnd the lowest portion of the brаinstem. The medullа oblongаtа is connected by the pons to the midbrаin аnd is continuous posteriorly with the spinаl cord, with which it merges аt the opening (forаmen mаgnum) аt the bаse of the skull. The medullа oblongаtа plаys а criticаl role in trаnsmitting signаls between the spinаl cord аnd the higher pаrts of the brаin аnd in controlling аutonomic аctivities, such аs heаrtbeаt аnd respirаtion.
The medullа is divided into two mаin pаrts: the ventrаl medullа (the frontаl portion) аnd the dorsаl medullа (the reаr portion; аlso known аs the tegmentum).
Your question is incomplete, but most probably your full options were
A. pons
B. medulla
C. cerebrum
D. cerebellum
Thus, the correct option is B.
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True root and xylem and phloem are present and 1 first true plant
Answers
Answer:
Pteridophytes are the first true land plants with xylem and phloem. Hence, they are called vascular cryptogams.
Explanation:
I think you are talking about this.
May you please be able to help me on this
Answers
1. The male superhero cannot teleport. So, the probable genotype is Xt Y
While the female superhero can teleport, but her mother could not. The probable genotype would be XTXt.
In order to get these genotypes for teleporting abilities, we first assign thegenotypes of the parents, which are:
Father- XT Y
Mother (do not have teleporting abilities)- XtXt
how does a cystoplasm’s structure relate to its function
Answers
remember that the action and reaction forces are equal in any collision if the action and reaction forces are equal then why do bumper cars that are of different masses react differently
Answers
Answer:
Newtons´s second law explain that F=MA, so, the heavier the car, the higher the impact force.
Explanation:
Answer:
no
Explanation:
It was so bad I give you a zero but that’s not possible so I give you…
Answers
Answer:
a one...
Explanation:
a one...............
if you took a linear piece of dna and cut it with the restriction enzyme ecori and it had three restriction sites for ecori, how many fragments would you produce?
Answers
When a linear piece of DNA is cut with a restriction enzyme, such as EcoRI, it cleaves the DNA at specific recognition sequences. In the case of EcoRI, the recognition sequence is 5'-GAATTC-3'. Each occurrence of this sequence serves as a potential cutting site for the enzyme.
If the linear DNA has three EcoRI restriction sites, it means that the EcoRI enzyme can bind and cleave the DNA at three different locations. Each cleavage generates two fragments, as the enzyme cuts the DNA strand at two points within the recognition sequence. Therefore, the total number of fragments produced will be twice the number of restriction sites.
In this scenario, since there are three EcoRI restriction sites, the enzyme will cleave the DNA at each of these sites, resulting in six fragments. Each fragment will have a different length, depending on the distance between the adjacent EcoRI sites.
It's important to note that the actual number of fragments may vary depending on the specific sequence and arrangement of the recognition sites within the DNA molecule. Additionally, factors such as the concentration of the enzyme and reaction conditions can influence the efficiency of cleavage and the resulting fragment sizes.
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