Answers
Answer:
before the cell divides
Explanation:
The point mutation can occur before and after cell division.
What is point mutation?Point mutation is a mutation where there is an alteration of a single nucleotide base occurs. The base is either deleted, inserted, or changed.
There are three types of point mutations, namely silent, missense, and nonsense mutations.Mistakes that occur during replication is one of the main reasons for point mutation.Point mutations can possibly cause the following diseases: thalassemia, sickle cell anemia, Fanconi anemia, etc.To learn more about mutations, refer:
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Related Questions
Each new growing strand is called the blank or matching strand
Answers
A new strand (he leading strand) is created during DNA replication in one continuous piece. Small fragments make up the other (lagging strand).
What is the name of the DNA strand?The double helix is a spiral formed by two long strands of nucleotides. The base pairs serve as the ladder's rungs while the phosphate and glucose molecule serve as the ladder's vertical siderails in the double helix shape.
What is the trailing strand, the new strand called?The lagging strand is the one that starts to open in the 3' - 5' direction toward the replication fork. The leading strand in the origin of replication is the one that travels with in 5' to 3' direction. Discontinuous replication occurs for the strand. The strand is continuously duplicated.
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Place the following terms in order as they would be encountered in anatomical position as you move distally from the sacrum all the way to the floor.
Os coxa
Femur
Patella
Tibia
Talus
Calcaneus
Answers
Os Coxae- Femur- patella-Tibia talus -calcaneus is the order of Arrangement of bones in the lower limb.
OsCoxae--Femur--Patella--Tibia--Talus--calcaneus is the correct order.
The leg consists of many bones starting from the hip bone or Os Coxae followed by Femur. Femur is the longest bone in the body. The next important bone is Patella or Knee bone followed by Tibia, and Tibia and Talus together form the lower part of the feet.Calcaneus or Heel bone.articulating from acetabular region where the hip joins with femur.it is the longest and one of the strongest bone in the body it extends and forms the kneecap bone or patella which also acts as a joint.the tibial and talus bone forms the foot and finally the heel bone or calcaneus.The shaft of leg is formed of tarsals and metatarsals and the fingers of foot is formed by bones called phalanges.
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What type of bond holds amino acids together?
Answers
Answer:
peptide bonds
Explanation:
The term evolution is used to describe
Answers
In E. coli bacteria, the lac operon contains genes that code for enzymes that break down lactose. Which statement describes when the genes in the lac operon are expressed?
Answers
The genes in the lac operon are expressed when lactose is present and the repressor protein is unable to bind to the operator region.
In E. coli bacteria, the lac operon contains genes that code for enzymes involved in lactose metabolism. The lac operon is a regulatory system that controls the expression of these genes. The expression of the genes in the lac operon is tightly regulated and depends on the presence or absence of lactose and glucose in the environment.When lactose is present, it binds to the repressor protein (lac repressor), causing a conformational change in the repressor. This change prevents the repressor from binding to the operator region of the operon. As a result, RNA polymerase can bind to the promoter region and transcribe the genes, leading to the production of the enzymes that break down lactose.In the absence of lactose, the repressor protein binds to the operator region and blocks RNA polymerase from initiating transcription. This prevents the expression of the genes in the lac operon.For more questions on protein
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if a diploid cell undergoes meiosis and produces two gametes with n 1 chromosomes and two gametes with n− 1 chromosomes, what type of error occurred?
Answers
Answer: non dysfunction
Explanation:
Can environmental factors influence the expression of traits?
Answers
Answer:
Environmental Factors Interact with Genes
Environmental factors often influence traits independently of genes. But not always. Sometimes the environment changes a gene—either its DNA sequence or its activity level. Either of these effects can change the proteins that are made from a gene, which in turn affects traits.
What could allow members of a population of insects to survive being sprayed with pesticide
Answers
Upon exposure to insecticides, insects that do not carry the resistance genes die, thus allowing individuals with the resistance genes to survive and reproduce, creating more resistant insects. With each generation the number of resistant insects increases.
What is insect resistance to insecticides?“Resistance is the ability of some individuals in the pest population to survive doses of the insecticide that would be lethal to most individuals in the population”
What are the mechanisms of insecticide resistance?Classically, there are three mechanisms involved in insect resistance to insecticides, which are:
reduction of insecticide penetration through the insect cuticledetoxification or metabolism of the insecticide by enzymes and reduced sensitivity at the site of action of the insecticide by the nervous system.With this information, we can conclude that The determining factor in the evolution of a pest's resistance to an insecticide is selection pressure.
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A group of researchers transformed E. coli to express
dsRNA that matched a transcription factor, eaf-1. They
then fed these E. coli to C. elegans worms. When the
researchers examined the C. elegans, they found that
they had fewer offspring and were smaller individuals,
with similar characteristics to C. elegans in which eaf-1
had been knocked out.
The students suggested several hypotheses based on
these observations about how RNAi worked:
1. The dsRNA inhibited gene transcription.
2. The dsRNA inhibited mRNA processing.
3. The dsRNA inhibited translation of mRNA into protein.
4. The dsRNA inhibited protein folding.
Mark this and return
The researchers then performed a series of experiments
to determine which hypothesis was correct. The C.
elegans were found to be transcribing eaf-1 into mRNA,
but not producing eaf-1 protein. When the students
directly injected C. elegans with dsRNA and tracked
tagged mRNA, they found the mature mRNA was
degraded in the cytoplasm, and ribosomes were not
binding to it. Which hypothesis is supported by these
observations?
Answers
The hypothesis that is supported by these observations is that the dsRNA inhibited the translation of mRNA into protein (third option).
What does the experiment reveal about dsRNA?In this experiment, the C. elegans worms were transcribing eaf-1 into mRNA but not producing the eaf-1 protein. This phenomenon shows that dsRNA inhibited the translation of mRNA into protein related to the action of E. coli on the worms.
This also explains why the worms affected by this bacteria had fewer offspring and the offspring were smaller.
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1. Once you have chosen a bacterial disease, you must research it in great detail. The information you find can be organized into the following categories:
(a) cause
(b) symptoms,
(c) treatment methods,
(d) who does the disease affect, survival rates, etc.
2. Organize this information into "notes" that you will submit along with your poster.
3. Now organize this specific information into a "Wanted Poster". The poster will explain that the bacteria or virus is wanted dead, not alive. The wanted poster needs to include some kind of graphic (preferably a picture or a drawing), a description of the bacteria or parasite, and all of the categories listed above. The information should be clear, concise, and well organized.
4. You must include a bibliography that consists of at least 5 sources listed in the appropriate format. If you do not include a bibliography you will not receive credit for the assignment.
5. Be prepared to answer questions from the instructor about your project.
Answers
Humans are susceptible to a wide range of diseases brought on by germs. Humans frequently contract bacterial illnesses such tetanus, TB, pneumonia, typhoid, and others.
Thus, Pathogenic bacteria are those that infect people and cause various diseases. The body's defense system's ability to produce innate immunity allows us to support the growth of numerous microorganisms.
Disease-causing bacteria can enter body fluids and tissues by outpacing the body's own defense mechanisms. Bacteria can either directly harm cells, release toxins, influence how cells function, or trigger an immunological reaction that harms the cells.
Diseases brought on by bacteria are called bacterial diseases. The human body contains a variety of microbes. Many of these are referred to be "good bacteria" because they don't lead to any diseases.
Thus, Humans are susceptible to a wide range of diseases brought on by germs. Humans frequently contract bacterial illnesses such tetanus, TB, pneumonia, typhoid, and others.
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Convection occurs when heat transfers through
a.direct contact
b.electromagnetic waves
c.no particles of matter
d.fluid movement
Answers
Describe how you might figure out if something was made out of cells.
Answers
Answer:All living organisms are composed of cells, from just one to many trillions, whose details usually are visible only through a microscope.
Explanation:
To determine if something is made out of cells, several approaches can be employed, including microscopic and biochemical assays for physical and chemical assessments.
Visual inspection using a microscope can reveal the presence of cell-like structures, such as membranes, nuclei, or organelles. Staining techniques, such as fluorescent dyes or immunohistochemistry, can further enhance the visibility of cellular components.
DNA analysis can also be conducted by extracting genetic material from the sample and performing sequencing or polymerase chain reaction (PCR) to detect DNA specific to cells.
Biochemical assays can be used to identify cellular components, such as proteins or enzymes, which are characteristic of cell composition.
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List the 3 types of rocks and explain how each is formed pls
Answers
Answer:
Igneous Rocks- Forms when magma cools and come solid
Sedimentary Rocks- Made from small grains of particles that are carried from air, wind, gravity, water, or ice. Formed from those sediments cementing together.
Metamorphic Rocks- Formed by heat and pressure
True or false: High levels of adrenaline decrease the ability to remember trauma but
increase the ability to concentrate. *
O True
O False
Answers
Answer: False
Explanation:
This is a false statement because researches have shown that Adrenaline is helping and it is good for long-term memory and if we have lots of Adrenaline that is making our brain work and remember better and more.
If we are recalling being insulted, falling, or something more, we can still retrieve those memories because of the Adrenaline and that means that it is not decreasing the ability to remember the trauma.
The incomplete burning of _____ in gasoline is known to create black carbon and contribute to global warming.(1 point)
carbon
methane
carbon dioxide
ethanol
Answers
Answer:
Ethanol
Explanation:
Just took it :)
The incomplete burning of carbon in gasoline is known to create black carbon and contribute to global warming. Thus, the correct option is A.
What is Global warming?Global warming is the long-term warming of the planet's overall temperature. Through a long time, this warming trend has been going on, its pace has significantly increased in the time from the last hundred years due to the burning of fossil fuels. As the human population has increased with time, so has the volume of fossil fuels also burned with time.
During the incomplete combustion of the carbon atom which is not completely oxidized which produces soot or carbon monoxide (CO). Incomplete combustion of carbon uses fuel inefficiently and the carbon monoxide is produced through this which is a health hazard.
Therefore, the correct option is A.
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Why aren’t stem cells rejected by your body post surgery?
Answers
Answer:
Stem cells are unspecialized cells, meaning they have yet to become actual cells. For example a brain cell, skin cell, or blood cell.
Which of the following processes is part of the carbon cycle?
Decomposers put carbon into the soil by breaking down organic material,
Factories remove carbon from the atmosphere by burning materials,
Plants put carbon back into the atmosphere through the process of photosynthesis,
Animals remove carbon from the atmosphere through the process of respiration.
Answers
Answer:
plants put carbon black in to atmosphere through the process of photosynthesis
While making her morning rounds, zoologist Martina takes a quick peek into the pen that houses Uruyange, the zoo's African gorilla. She
can tell immediately that something is wrong and alerts other zookeepers to help her get Uruyange in for an examination. Which sentence
BEST explains how Martina was able to recognize that something was wrong?
O A.
Uruyange most likely told Martina how he was feeling with sign language.
O B.
Martina spotted Uruyange's toys thrown into the pond in his enclosure.
Oc.
Martina had no real way of knowing something was wrong, she just felt it.
OD.
Uruyange may have been slumped over in his pen or behaving erratically.
Answers
Answer:
D
Explanation:
it makes sense that D is the answer since it shows something was actually wrong
Which of the following living things would occupy the highest trophic level?
Answers
Trophic levels are the position that organisms have in the trophic chain or web, with producers on the lowest position and tertiary consumers (those that consume secondary consumers) on the highest one.
From the examples provided, the lynx would be the one in the highest trophic level (3rd option).
Is a guppy(small fish) a herbivore or a carnivore? BECAUSE THE WORK I HAVE DOESN'T HAVE OMNIVORE ABD WHEN I LOOK ONLINE IT IS TELLING ME IT IS A OMNIVORE.
THE WORK I HAVE SAYS PRODUCERS, HERBIVORES, CARNIVORES AND TOP CARNIVORES,SO WHICH ONE OF THESE DOES A GUPPY FALL UNDER.
please help
Answers
Don't rely on random online people. Read the text your teacher provided.
What new knowledge was gained from Frederick Griffiths work with pneumococci bacteria
Answers
Answer:The new knowledge gained from Frederick Griffith's work with pneumococci bacteria is that bacteria contain a physical substance that can change the structure of other bacteria. Therefore, option 3 is the correct answer.
Explanation:
1
2
3
4
5
6
7
8
9
10
Which factor do trees need when they comnete for energy?
Answers
Answer:
4
Explanation:
4 is the factor that trees need when they comnete for energy
I really need help with Biology 102 ASAP!!!! but it's due date: Apr 17, 2023 at 11:59 PM EDT
Question 9
Just click on a pics
Answers
Answer: Type 1 diabetes mellitus:
About 10% of diabetics have this type
A person does not produce enough insulin
Treated with insulin injections
Can lead to coma and death as built up ketones are converted to acids
Usually begins in childhood or adolescence
Long-term complications include blindness and cardiovascular disorders
Type 2 diabetes mellitus:
Most diabetics have this type
Cannot properly use produced insulin
Affects a person's ability to regulate glucose metabolism
Often develops in overweight or obese people
Long-term complications include blindness and cardiovascular disorders
Explanation: hope it helps
Type 1 Diabetes Mellitus:
About 10% of diabetes have this type
Can lead to coma and death as built up ketones are converted to acids
Cannot properly use produced insulin
Usually develops in childhood
Type 2 Diabetes Mellitus:
Most diabetes have this type
Often develops in overweight/obese people
Affects a person's ability to regulate glucose metabolism
Long-term complications include blindness and cardiovascular disorder.
Both:
A person does not produce enough insulin
Treated with insulin injections
Meiotic recombination produces new genetic information in sister chromatids.This Happens During prophase I. Order the stages of prophase I chronologically: ____ Diplotene.-The synaptonemal complex dissociates; homologous pairs remain attached (chiasmata).
Answers
Answer:
See the answer below
Explanation:
The various stages of propase I of meiosis I in chronological order would be
1. Leptotene
2. Zygotene
3. Pachytene
4. Diplotene
5. Diakinesis
The leptotene stage is characterized by the thickening or condensation of the genetic material in the nucleus such that 'thick thread' structures is formed.
At the zygotene stage, the thickness advances and structures can be seen as chromosomes under the microscope. Homologous chromosomes are seen pairing up (synapsis) through the formation of synaptonemal complex to form tetrads or bivalents.
At pachytene, an exchange of chromosomal segments between synapsed homologous chromosomes occur in a process known as crossing over. The exchange point along the synapsed chromosomes are known as the chiasmata. After the crossing over, homologous chromosomes begin to separate but remains joined at the chiasmata.
At diplotene, the dissolution of the synaptonemal complex occur and homologous chromosomes still held together by the chiasmata begin to repel one another. The chiasmata becomes terminalized.
At Diakinesis, chromosomal condensation is completed and the cell is conditioned to progress to metaphase I of meiosis I.
At the synapse, information is transmitted from one neuron to another via what kind of messengers?.
Answers
Answer: Neurotransmitters
Explanation: Neurotransmitters carry their information from the pre-synaptic neuron to the post-synaptic receiving cell.
how does the number of individuals with each trait in a population can change overtime
Answers
Answer:
Populations change over time by natural selection when individuals with more fit traits leave more offspring than individuals with less fit traits.
The number of individuals with each trait in a population can change over time through a process called natural selection.
This occurs when certain traits become more advantageous in a particular environment, increasing the likelihood that individuals with those traits will survive and reproduce. Over many generations, this can lead to changes in the frequency of those traits within the population.
For example, if a population of birds lives in an environment where the trees have become taller over time, individuals with longer beaks may be better adapted to reach food sources, and thus have a higher chance of survival and passing on their long-beaked trait to their offspring. As a result, the proportion of birds with long beaks may increase in the population over time.
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Going long does carbon dioxide last
Answers
Answer:
carbondioxide last in about 300 to a 1000 years in the atmosphere
Which organelle would not be found in a prokaryotic cell? A) nucleus b)cell membrane c)Cytoplasm d)Genetic material
Answers
Answer:
\(A) nucleus\)
If Philippine Atmospheric Geophysical Astronomical Services Administration is not yet established, could we just rely on the wind to determine the weather?
Answers
If Philippine Atmospheric Geophysical Astronomical Services Administration is not yet established, we couldn't just rely on the wind to determine the weather.
The National Meteorological and Hydrological Services (NMHS) organization of the Philippines is known as the Philippine Atmospheric, Geophysical, and Astronomical Services Administration (abbreviated as PAGASA).
Its duties include protecting the nation from natural disasters, ensuring everyone's safety, well-being, and financial security, and advancing national progress by providing scientific and technological services in the fields of hydrology, climatology, meteorology, astronomy, and other geophysical sciences.
PAGASA, which was established by restructuring the Weather Bureau on December 8, 1972, is currently one of the Department of Science and Technology's Scientific and Technological Services Institutes.
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In Labrador retrievers some puppies have pink noses and some have black. Labrador retrievers with black fur almost always have black noses. What type of inheritance pattern is this? Explain how this is possible.