suppose that a single dna base change of an a to a t occurs and is copied during replication. is this change necessarily a mutation?
Yes, it is a change in the DNA sequence. o Yes, if the base change occurs in a gamete (sperm or egg cell); otherwise no. Yes, if the base change occurs in the coding part of a gene; otherwise no. Yes, if the base change occurs in the coding part of a gene and alters the amino acid sequence of a protein; otherwise no. Yes, if the base change alters the appearance of the organism (phenotype); otherwise no.

A chronological text structure uses to signal a sequence of time is words and dates.

In а chronologicаl sequence, the аuthor uses the order of events, or chronology, to inform reаders аbout events or content. The events mаy be orgаnised by time or dаte, by аrrаnging events аs а series of steps or by following а list-like structure. Chronologicаl sequencing is commonly used in nonfiction texts. In nonfiction, there аre usuаlly cleаr time mаrkers such аs dаtes or times of dаy to indicаte а cleаr timeline.

Your question is incomplete, but most probably your full question was

What does a chronological text structure use to signal the sequence of time?

A. causes and effects

B. reactions to events

C. words or dates

D. responses to events

Thus, the correct answer is C.

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Answer:

no

Explanation:

Answer

Yeah?

Explanation:

Spinocerebellar tract axons carry sensory information into the cerebellum through the inferior cerebellar peduncle

The dorsal spinocerebellar tract (DSCT), also known as the dorsal spinocerebellar tract, is the somatosensory part of the sensory nervous system that relays unconscious proprioceptive information from the lower extremities and trunk to the cerebellum. The spinocerebellar tract carries unconscious proprioceptive information from muscle spindles, Golgi tendon organs, and joint capsules to the cerebellum. The cell bodies of primary sensory neurons, which carry this information from such receptors to the spinal cord, are located in the dorsal root ganglia.

Damage to the thalamo-spinal tract within the spinal cord, as seen in Brown Square Syndrome, results in contralateral pain and hypothermia, and ipsilateral vibrations and proprioception transmitted through the dorsal column are affected.

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Answer:

C

Activation energy

Explanation:

Activation Energy is the minimum amount of energy needed to start a chemical reaction. All chemical reactions need a certain amount of activation energy to get started.

Answer:

A. True

Explanation:

Allolactose is an example of an inducer, a small molecule that triggers expression of a gene or operon. The lac operon is considered an inducible operon because it is usually turned off (repressed), but can be turned on in the presence of the inducer allolactose.

Answer:

A is your answer

Explanation:

I'm just here to clarify Grubbytrolls answer

Answer:

air pressure force factor

Answer:c

Explanation:

Answer:

The dominant trait is the trait that will be expressed

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Explanation: hope this helps!

Answer:

A cell is the smallest unit of a living organism

Explanation:

Just as an atom is described as the smallest unit if any substance, a cell is defined as the smallest, basic unit of any living organism.

This means that in order for something to be considered an organism, it has to contain, at least, a cell. Such organism with a single cell is referred to as a unicellular organism.

There are several organisms with more than one cell. Such organisms are said to be multicellular. Multicellular organisms often have their cells organized into tissues, organs, and or systems in order to function efficiently and maximally.

Cells can be of different types based on their level of complexity. The simple cells that do not have nucleus nor membrane-bound organelles are referred to as prokaryotic cells while the ones with complex structures with a nucleus and membrane-bound organelles are known as eukaryotic cells.

Answer:

Grass, Option B

Explanation:

If the beetle population increased then they would be eating more grass, which would negatively impact the ecosystem because you need everything stabilized in the environment.

Answer:

B. grass

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The information needed would be the breakdown on who owns the businesses in the country and how much control the government has upon business regulation, taxes, etc

The government plans and distributes available services, resources, and goods across the nation using an economic system as a tool. Economic systems combine wealth, labour, physical resources, and businesspeople to manage the components of production.

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Answer:

-  All organisms are composed of cells. -  Cells are alive and the basic living units of organization in all organisms. -  All cells come from other cells.

Explanation:

:)

The three parts of the cell theory are as follows:

CELL THEORY:

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Answer:

recent study out of the Weizmann Institute in Israel states that the number of bacteria may actually be very similar to the number of human cells in the body.

While this results in about 1.3 bacterial cell per human cell, the numbers may vary significantly from person to person and could change significantly with each defecation. They estimate that the range of bacterial cells goes from about 30 to 50 trillion in each individual. Women may also have a higher ratio of bacterial cells than human cells because they have fewer human cells, specifically red blood cells.

Answer:

C

Explanation:

the amount of amini acids don’t matter. What matters is the sequence of the amino acid which determines the function of a protein.

Answer:

Its an easy experiment demonstrating the Earth's rotation. ... At the north or south pole, the pendulum is moving in a fixed so the plane of the pendulum seems to rotate through 360° as the Earth makes one full rotation.

Explanation:

Explanation:

Mass extinctions were first identified by the obvious traces they left in the fossil record. In the strata corresponding to these time periods, the lower, older rock layer contains a great diversity of fossil life forms, while the younger layer immediately above is depauperate in comparison. Often, the rock layers bookending the mass extinction are noticeably different in their compositions. These changes in the rocks show the effects of environmental disturbation that triggered the mass extinction and sometimes hint at the catastrophic cause of the extinction.

Answer:

Covalent bonds formed by shared electrons between atoms.

Explanation:

The given statement "limestone erodes faster than basalt when exposed to ocean salt water" is falsifiable because it can be tested and potentially proven false through scientific experimentation and observation.

Falsifiability is a key principle in scientific inquiry, proposed by philosopher Karl Popper, which states that for a statement to be considered scientific, it must be possible to conceive an observation or experiment that could potentially prove it false.

In the case of the statement about limestone and basalt erosion, it can be subjected to empirical testing. One can design experiments or conduct observations to compare the erosion rates of limestone and basalt when exposed to ocean salt water. These experiments can control various factors such as water flow, temperature, and the specific properties of the limestone and basalt samples being studied.

Through these experiments, researchers can measure erosion rates, either by observing physical changes over time or by analyzing the amount of material lost. By comparing the erosion rates of limestone and basalt samples under the same conditions, it becomes possible to determine if limestone does, indeed, erode faster than basalt when exposed to ocean salt water.

If the results consistently show that limestone erodes at a faster rate than basalt under these specific conditions, then the statement holds true and can be supported by evidence. However, if the experiments yield different results, or if there are variations depending on specific circumstances or environmental factors, then the statement can be considered false or at least not universally applicable.

In summary, the falsifiability of the statement allows for scientific investigation and testing, enabling researchers to gather evidence and draw conclusions about the erosion rates of limestone and basalt in ocean salt water.

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Answer:

True.

Explanation:

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The GTP hydrolysis by Ran occurring in the cytosol and where the Ran-GEF (Guanine Nucleotide Exchange Factor) and Ran-GAP (GTPase Activating Protein) are found is Option. D) Ran-GEF ( guanine nucleotide exchange factor) is only found in the cytosol, from where it will promote binding of the nuclear import receptor to the cargo (a prospective nuclear protein)".

In the process of nucleocytoplasmic transport, Ran is a small GTPase protein that is critical. Ran regulates the bidirectional transportation of macromolecules across the nuclear envelope by hydrolyzing GTP. The energy released by the hydrolysis reaction is used to power the transport of molecules across the nuclear membrane.Ran's activities are controlled by the GEF and GAP proteins. The GEF protein triggers the exchange of GDP for GTP in Ran, whereas the GAP protein promotes the hydrolysis of GTP to GDP. Ran-GEF is only found in the cytosol, where it promotes the binding of the nuclear import receptor to the cargo (a prospective nuclear protein).In addition, Ran-GAP is found only in the nucleus, where it stimulates the release of Ran from the nuclear import receptor and promotes the release of cargo.

Therefore, the statement "GTP hydrolysis by Ran occurs in the cytosol" suggests that Ran-GAP is only found in the nucleus, while Ran-GEF is only found in the cytosol.

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Answer:

False

Explanation:

Carbon-Based Fuels Dominate Global Energy Use

Crude oil, coal, and natural gas supply about 85% of the energy used in the world.

                                                  Explanations:

Physical change: Physical change is like when the appearance of an object or whatever is changed, and doesn't look much different. Not in a completely new unrecognizable form/substance.

Chemical change: Chemical change is when the appearance of an object is fully changed, unrecognizable, and into a new form/substance

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Answer:

that I have a a but this is the real account of Finn have a great day today with my mom said you didn't want me there was an amazing person I am so

Answer:

B. Protein is composed of DNA which is produced in the cell

Explanation:

Answer:

B. Protein is composed of DNA which is produced in the cell

Explanation:

The option (B) is the relationship between a protein, the cell, and DNA.

The structure highlighted in the image is the sphenoidal sinus. It is a paired air space in the sphenoid bone, which is located at the base of the skull. The sphenoidal sinuses are the largest of the paranasal sinuses, and they help to warm and humidify the air that we breathe.

The other paranasal sinuses are:

Maxillary sinuses: These are the largest of the paranasal sinuses, and they are located in the cheekbones.

Ethmoidal air cells: These are a group of small air spaces that are located in the ethmoid bone, which is located between the eyes.

Frontal sinuses: These are located in the forehead.

The paranasal sinuses are connected to the nasal cavity by small openings. This allows air to flow in and out of the sinuses, which helps to keep them healthy.

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Annelida are worms whose bodies are divided into similar rings or segments. they are classified into three groups, Polychaeta, Oligochaetes, Hirudine, and Achaea.

Polychaeta is the bigger group in the Annelida, and everyone has equal segments.

Leeches are segmented parasitic predatory worms in the Hirudinea subclass, in the Annelida phylum.

The scallop is a name of various species and does not belong to the Annelida phylum.

The earthworm is a terrestrial invertebrate that belongs to the Annelida Phylum.

Nautilus is from the Mollusca phylum and does not belong to the Annelida.

The subphylum Polychaeta, the leaches, and the earthworm are the ones that match the description of segmented worms

a microbiologist does a gram stain on a csf. she sees intracellular and extracellular gram-negative diplococci  the most likely organism is the meningitidis.

Meningococcal disease is brought on by a bacterium known as Neisseria meningitidis. One in ten persons carry these germs in their throat and back of nose without being unwell. Being a "carrier" is what this is. Meningococcal disease is a term used to describe several ailments caused by the bacteria when they occasionally infect the body.

What brings about meningitis?

The protective membranes that shield the brain and spinal cord become inflamed and swollen during meningitis. The swelling is typically brought on by a bacterial or viral infection of the cerebrospinal fluid. However, other types of infections, tumors, certain medicines, and injuries can also result in meningitis.

Neisseria meningitidis bacteria are the cause of meningococcal illness. Meningococcal disease patients can transmit the bacterium to others through intimate personal contact, such as sharing housing or kissing.

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