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ryzh [129]
3 years ago
13

How does a mutation affect a gene? A. A mutation changes the sequence of DNA bases in a gene. B. A mutation creates the sequence

of traits in a gene. C. A mutation creates the sequence of RNA bases in a gene. D. A mutation changes the sequence of RNA bases in a gene.
Biology
2 answers:
mars1129 [50]3 years ago
6 0
The answer should be A, because it changes the DNA code creating something different such as autism or down syndrome.

snow_tiger [21]3 years ago
3 0
A. is the correct answer bc a mutation changes the DNA.
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A flea and dog are an example of (commensalism herbivory mutualism parasitism) , because the flea irritates the dog's skin and f
Semmy [17]

Answer:

parasitism

mutualism

commensalism

Explanation:

Commensalism is defined as a relationship between two living organism in which one organism get benefits and the other organism neither benefit nor harm.

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Mutualism is defined as the relationship between two living organism in which  both organisms benefit each other.

Parasitism is defined as the relationship between two living organism in which one organism get benefits and the other organisms get harmed.

So, a flea and dog are an example of parasitism, certain bacteria live in the digestive tract of humans is an example of mutualism, and relationship between cattle egrets and an elephant is an example of commensalism.

Hence, the correct answer is:

parasitism

mutualism

commensalism

7 0
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Mamont248 [21]

Answer:

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Explanation:

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