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Analyze the table below and answer the question that follows. A square with four boxes. Uppercase R lowercase r are on the left side of the square. Uppercase R lowercase r are on the top side of the square. In the square: Uppercase R uppercase R in the first box on the top. Uppercase R lowercase r in the second box on the top. Uppercase R lowercase r in the first box on the bottom. Lowercase r lowercase r in the second box on the bottom. If the ability to roll one’s tongue is dominant (R) and the inability to roll one’s tongue is recessive (r), what are the possible genotypes for someone who can roll their tongue? only RR RR and Rr RR and rr only rr.

Sagot :

Muminkhandkaridn

Answer:

Analyze the table below and answer the question that follows.

A square with four boxes. Uppercase R lowercase r are on the left side of the square. Uppercase R lowercase r are on the top side of the square. In the square: Uppercase R uppercase R in the first box on the top. Uppercase R lowercase r in the second box on the top. Uppercase R lowercase r in the first box on the bottom. Lowercase r lowercase r in the second box on the bottom.

If the ability to roll one’s tongue is dominant (R) and the inability to roll one’s tongue is recessive (r), what are the possible genotypes for someone who can roll their tongue?

only RR

RR and Rr

RR and rr

only rr

Explanation:

100% correct answer is B

Akposevictoridn

Since (R) is dominant allele, and (r) is recessive allele, the possible genotypes for someone who can roll their tongue would be:

B. RR and Rr.

What is a Dominant Allele?

A dominant allele is an allele that expresses itself even in the presence of a recessive allele.

For a dominant allele to express itself, it takes only a single copy of the allele to be present in a genotype.

Thus:

(R) is said to be dominant allele over a recessive allele (r) for tongue rolling.

Therefore, since (R) is dominant allele, and (r) is recessive allele, the possible genotypes for someone who can roll their tongue would be:

B. RR and Rr.

Learn more about dominant allele on:

https://brainly.com/question/16616523

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