Consider the following cross:

parent 1: yytt
parent 2: yytt

using the rules of probability, determine the probability that the offspring will show yytt genotype?

a.) 1
b.) 8
c.) 16
d.) 2

The correct answer is-

D.) 2/16

Explanation-

As per the information given in the question, the genotype of parents are-

Parent 1: YyTt

Parent 2: YyTt

Gametes produced by each parent would be- YT, Yt, yT, and yt

When these parents are allowed to cross, they will produce nine different types of genotypes out of which the probability of offspring showing YyTT would be genotype 2/16

Refer punnet square.  

answer; ///i believe the correct answer is (aids) acquired immune deficiency syndrome;

explanation:

b,bacteria convert nitrates

into nitrogen gas.

d,plants and animals take in

and use nitrogen compounds.

e,bacteria break down waste    

products and return nitrogen  

to the soil.

a,bacteria convert atmospheric

nitrogen to ammonia.

c,bacteria convert ammonia

to nitrites and nitrates.