Biomed Final

What are the possible genotypes for this cross?

• TT = 25% Tt= 50% tt=25%

• all tall

• TT= 75% tt = 25%

• Tt = 100%

Which of the following genotypes is homozygous dominant?

• A

• Aa

• AA

• aa

If brown eyes are dominant over blue eyes, what would be the  parent genotypes if two heterozygous brown eyed persons were crossed?

• BB and bb

• BB and Bb

• Bb and Bb

• bb and Bb

A red flowered plant (RR) breeds with a White flowered plant (WW). The gene for petal color in these plants expresses incomplete dominance.  What percentage of the offspring will have pink (RW) flowers?

• 0%

• 25%

• 50%

• 100%

A green pea plant (Gg) is crossed with a yellow pea plant (gg). Describe the genotype of the offspring. (Be sure to remember that the capital letter is dominant).

• 50% heterozygous and 25% homozygous recessive

• 50% heterozygous and 50% homozygous recessive

• 100% homozygous recessive

• 25% heterozygous and 50% homozygous

A white flower (rr) is crossed with a white flower (rr). What is the genotype of the offspring? Draw a Punnett square and answer the question.

• 100% homozygous dominant

• 100% heterozygous dominant

• 100% homozygous recessive

• 100% heterozygous recessive

Which of the following is homozygous recessive?

• rr

• AA

• TT

• Ff

Which of the following is homozygous dominant?

• Jj

• Rr

• MM

• ee

The physical appearance of a trait is known as the-

• genotype

• phenotype

• Homozygous

• intelligence

Gretford is heterozygous for his head shape. If (R) is for a Round head, and (r) is for an Egg head, what is Gretford's genotype?

• RR

• Rr

• rr

• rR