Review for genetics quiz #2

Which is a genotype?

• green leaves

• GG

• 1/4

• hair color

Which of the following is a phenotype?

• green leaves

• GG

• Gg

• 3/4

Genotypes can be homozygous or heterozygous. Which of the following is heterozygous?

• GG

• Gg

• gg

• yellow leaves

If the plants got one gene for green leaves and one gene for yellow leaves, their leaves were green. Which trait is dominant?

• green

• yellow

• the seeds

• neither is dominant

Which of these genotypes is homozygous?

• GG

• Gg

• green leaves

• yellow leaves

Which of these genotypes is homozygous for the recessive trait?

• GG

• Gg

• gg

• yellow leaves

Which of these is a rule for how parents pass genes to their children?

• the dad gives genes to the boys and the mom gives genes to the girls

• children receive genes from parents, aunts and uncles, and grandparents

• children receive half of their genes from mom and half from dad

A dad has brown eyes and a mom has blue eyes. One of their children has blue eyes. What is true?

• the child got genes from mom and not from dad

• the child got fewer genes from dad than from mom

• the child got one gene from mom and one from dad

• the child is a girl

A child gets one brown eye gene and one blue eye gene. Their eyes are blue. We would call blue...

• genotype

• acquired

• dominant

• recessive

What is the phenotype of the children?

• 2/4 blue, 2/4 brown

• 4/4 brown

• 4/4 Bb

• 1/2 B, 1/2 b