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statuscvo [17]
2 years ago
15

In dogs, spotty fur is a recessive trait. Show a cross between two dogs that are heterozygous for spotty fur. What is the likeli

hood of these dogs having puppies with spotty fur?
Biology
1 answer:
Whitepunk [10]2 years ago
5 0

Answer:

The correct answer is - 25% chances of having puppies with spotty fur.

Explanation:

In this question, it is given that spotty fur is a recessive character which means in the heterozygous condition it is not expressed in the phenotype. Here the cross between two heterozygous dogs for spotty fur will produce the following gametes:

Heterozygous: S and s where S is dominant allele and s is the allele for spotty fur that is recessive

Punnett square:

      S       s

S   SS     Ss

s     Ss     <u>ss</u>

By the Punnett square, we can say that likelihood of spotty fur (ss) in puppies is only 1/4 or 25%.

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