Question

6) Why is it that only maternal mitochondrial DNA passes on from parent to offspring? (10 pts)

Assume the following for questions 7 & 8. Show work via Punnett squares

a) Handedness is determined via maternal effect.

b) Left handedness is recessive.

c) Right handedness is dominant.

7) If your grandmother had the homozygous recessive trait and your grandfather was homozygous dominant what was your mother’s genotype and phenotype? (10pts)

8) Your father is heterozygous. What is your genotype and phenotype? (10pts)

Answer 1

Maternal effect- When the phenotype of an organism is mainly determined by the mother's genotype.

So in these questions..whatever the mother's genotype are that's gonna determine the offspring's phenotype. Thus called as maternal effect.