Which is a point mutation

1 answer:

6 0

A point mutation or substitution is a genetic mutation where a single nucleotide base is changed, inserted or deleted from a sequence of DNA or RNA. Point mutations have a variety of effects on the downstream protein product—consequences that are moderately predictable based upon the specifics of the mutation.

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3. All of the organic molecules are based on which element?

Ulleksa [173]

Answer:

<h2>Carbon. </h2>

Explanation:

Life is based on carbon; organic chemistry studies compounds in which carbon is a central element. The properties of carbon make it the backbone of the organic molecules which form living matter. Carbon is a such a versatile element because it can form four covalent bonds.

<h3>Hope it helps you⚛.</h3>

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7 0

2 years ago

A student hypothesized that EC growth might be affected by the DNA from circulating erythrocytes. Is this student’s hypothesis r

kykrilka [37]

Answer: The options are not given, here are the options.

A) No the DNA in circulating erythrocytes ins needed to help transport O2 through the capillaries

B) No circulating erythrocytes contain DNA.

C) Yes DNA is responsible for cell division in most cells

D) Yes circulating erythrocytes carry DNA nutrients through the capillaries

The correct option is B.

No circulating erythrocytes contain DNA.

Explanation:

Erythrocytes or red blood cells is a biconcave disc that contain haemoglobin which help to carry oxygenated blood in the body.

Circulating erythrocytes do not contain dna because they lack nuclei and organelles, cannot synthesize any RNA, therefore cannot divide and have limited repair capabilities.

Because they cannot carryout protein synthesis, no virus can evolve and invade the red blood cells.

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3 years ago

Which of the following is an advantage of sexual reproduction over asexual reproduction? I. Sexual reproduction is more rapid an

weeeeeb [17]

The answer is II.Sexual reproduction results in more diversity

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2 years ago

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The 10% rule in the food chain means

scoray [572]

The 10% rule means that when energy is passed in an ecosystem from one trophic level to the next, only 10% of the energy will be passed on.