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nikitadnepr [17]
3 years ago
15

In Drosophila, the dominant allele Cy (Curly) results in curly wings. The cross Cy/ x Cy/ (where represents the wildtype allele

of Cy) results in a ratio of 2 curly : 1 wildtype F1 progeny. The cross between the curly F1 progeny also gives a ratio of 2 curly : 1 wildtype F2 progeny. How can this result best be explained
Biology
1 answer:
blagie [28]3 years ago
4 0

Answer:

d

Explanation:

Using a Punnet square to represent the given information

The cross between Cy + and Cy + can be computed as:

            Cy                  +

Cy       Cy Cy               Cy +

+           Cy +                ++

From what we see above, it is above that the ratio of Curly to wildtype is in the ratio of 2:1

This illustrates that the genotype Cy Cy is lethal. This is explained when two curly F1 are crossed which resulted in the same ratio.

Hence, the inheritance of Cy/Cy is fatal.

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Explanation:

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Option A is incorrect  because both humans and mouse are eukaryotes so they have introns and because of that even if the gene sequences are different they can still encode protein.

Option B is incorrect because  amino acid sequences can be similar inorder to have the similar function. If glutamic acid is replaced by aspartic acid, it won't have different function the function will remain same. So, identical amino acid sequences are not required. They can be similar too.

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2 years ago
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3 years ago
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Since Ike knows that each strip of tape carries a negative charge, he could see if the strips repel each other when brought close together.

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From the statement given, the option that is accurate is that the wavelength of both transverse and longitudinal waves is measured parallel to the direction of the travel of the wave.

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