Question

Q7. Pleiotropic traits such as fur color in cats do not follow the law of independent assortment of alleles into gametes True or false

Q8 In a cross between two pea plants in which both plants are heterozygous for flower color, what is the probability of homozygous F1 offspring? A. 100% of the offspring will be homozygous for flower color B. 25% of the offspring will be homozygous for flower color C. 75% of the offspring will be homozygous for flower color D. 0 (no chance)- none of the offspring will be homozygous E. 50% of the offspring will be homozygous for flower color

Answer 1

7. Pleiotropy is the condition where one gene is responsible for multiple traits. So, these traits will not be inherited independently. Therefore, pleiotropic traits do not adhere to the law of independent assortment.

8. The punnet square showing the probability for offspring genotype in the case of heterozygous parents is shown below.

alleles	P	p
P	PP	Pp
p	Pp	pp

Here, there is only a 1/4 probability for homozygous dominant and 1/4 probability for homozygous recessive offspring. So, the total probability for homozygous offspring is 1/2 or 50%.(option E)