Question

What is the probability of two offspring in a row having mid-digital hair and freckles?

Unit C: Assignment Module : Mendelian Genetics and Inheritance Use the following information to answer questions 11 and 12. Use the following into Mid-Digital Hair and Freckles Finger mid-digital hair (M) is dominant over the recessive trait of no mid-digital hair (m). Freckles are dominant over the recessive trait of no freckles . It is important to note that this example of mid-digital hair and freckles cannot be explained with simple genetics, but for the purpose of this question, assume that it can.) A woman that is heterozygous for freckles and has no mid-digital hair is married to a man with no freckles that is heterozygous for mid-digital hair. The couple is expecting a child. 11. Draw a Punnett square of this cross. (1) 12. a. What is the probability that their offspring will have mid-digital hair? b. What is the probability that two offspring in a row will have no freckles? ADLC | Biology 30

Answer 1

For quistion 11, I have uploaded(punnet square) the image

we have ; Ffmm x ffm m gameter : Fm fm x fm fm Fm fm wt FfMm ffmm fm Ffmm ffmm

12.a) 1/2 is the probability of offspring have mid digital hair.

That is there are FfMm, ffMm shows mid digital hair.

b) from the punnet square it was clear that there is only one genotype in each row which have no freckles.

So the desired probability=1/8

That is 1/4 is the probability of each offspring and 1/2 is the probability of having no freckles in a row. So desired probability is just multiplication of them.