QUESTION 2 Consider this cross AaBbCcddEeffGg x aaBbccDdeeFf

QUESTION 2

Consider this cross: AaBbCcddEeffGg x aaBbccDdeeFfGg

What is the probability of an offspring with a AaBbCcDdEeFfGg? (round to 3 decimal places)

1 points   

QUESTION 3

A man and a woman are both heterozygous for alkaptonuria (remember that condition where black urine is produced). The alkaptonuria phenotype is autosomal recessive. If they have seven children, what is the probability that three children will be alkaptonuric and the other four normal? Report your answer to three decimal places.  

1 points   

QUESTION 4

In labrador retreivers, black fur color (B) is dominant to chocolate fur (b). A breeder crosses two heterozygous labs, resulting in a litter of 9 puppies. What is the probability that 4 of the puppies will be black and the rest will be chocolate? (round your answer to 3 decimal places, e.g. 0.050) Ignore all other loci that can affect coat color in dogs.[blank]

Please answer the following and show all the work. I am very confused w/ probability and did not get those answers correct so I would appreciate step by step explanation as to how to even get to the answers. Thanks.

Solution

2) The probability of prducing is :AaBbCcDdEeFfGg

probability for Aa=1/2X

probability for Bb=1/2X

probability for Cc=1/2X

probability for Dd=1/2X

probability for Ee=1/2X

probability for Ff=1/2X

probability for Gg=1/2X

total=1/2*1/2*1/2*1/2*!/2*1/2*!/2=1/128=0.007