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jekas [21]
3 years ago
11

The brown-eye allele is dominant over blue-eye allele. A couple currently has 3 children with brown eyes. What is the probabilit

y that their next baby will have blue eyes if both parents are heterozygous for eye color
Biology
1 answer:
MissTica3 years ago
5 0

Answer:

The correct answer is: 25 %

Explanation:

According to Mandel's law of inheritance, the dominant allele masks the expression of the recessive allele if present together. If a couple has 3 children with brown eyes. In a monohybrid cross, the ideal phenotypic ratio of the offsprings is 3: 1 or in other words, the dominant character chances to appear is 75% in phenotype.

So, by the law of dominance of monohybrid cross the chances of the fourth child to develop blue eyes is 25%.

Thus, the correct answer is : 25 %.

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