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Ganezh [65]
3 years ago
11

In a certain cat, long whiskers (W) are dominant and short whiskers (w) are recessive. Two cats have genotypes Ww and ww. If the

y have an offspring with short whiskers, what is the genotype of their offspring?
A. wW
B. Ww
C. WW
D. ww
Biology
2 answers:
andrew-mc [135]3 years ago
6 0

Answer:

D. ww

Explanation:

The genotype of short whiskers is recessive.  For a recessive characteristic to appear phenotypically ( this means, this can be seen)    the two alleles present must be recessive

zhannawk [14.2K]3 years ago
4 0

Answer:

D (ww)

Explanation:

This is a cross involving a single gene coding for whisker length in cats. The allele for long whiskers (W) is dominant over the allele for short whiskers (w) i.e. the W allele will mask the expression of w allele in a heterozygous state.

Since long whisker allele (W) is dominant, it means the dominant trait (long whisker) will be expressed if the genotype if a cat is homozygous dominant (WW) or heterozygous (Ww). However, the recessive trait (short whiskers) can only be phenotypically expressed when the cat's genotype is homozygous recessive (ww).

Therefore, if a cross between a Ww (heterozygous) cat and a ww (homozygous recessive) cat produces an offspring with short whiskers, It means that the offspring has a homozygous recessive genotype (ww) since it expresses the recessive trait.

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