Review Genetics Quiz

Which pair are homozygous dominant?

• dd

• Ee

• MM

• Hh

Which pair are heterozygous?

• dd

• Ee

• MM

• HH

What is the term for the alleles for a trait that are always exhibited if they are present in the organism's genes?

• zygote

• trait

• recessive

• dominant

What is the term for alleles for a trait that are only exhibited if an organism inherits two of them (aa)?

• dominant

• recessive

• zygote

• meiosis

The different forms of a gene are called

• Nucleus

• pollination

• alleles

• purebred

A heterozygous tall pea plant (Tt) is crossed with a short plant (tt). The probability that an F1 plant will be tall is?

• 25%

• 50%

• 75%

• 100%

Suzette owns a litter of rabbits. There are three black rabbits and one white rabbit. Black coat color (B) is dominant to white coat color (b). What most likely are the genotypes of the parents?

• Both parents are heterozygous (Bb)

• One parent is homozygous dominant (BB) and the other is homozygous recessive (bb)

• Both parents are homozygous recessive (bb)

• One parent is heterozygous (Bb) and the other is homozygous dominant (BB)

A heterozygous long-tusked elephant is crossed with a homozygous recessive short-tusked elephant. What is the probability of the offspring having short tusks?

• 0%
• 25%
• 50%
• 75%

Which of the following are genotypes for blood type B?

• I^A I^A and I^A I^B

• I^B I^B and ii

• I^B I^B and I^B i

• I^A I^B and I^A I^B

Punnett Square: A man is homozygous for the B allele, and a woman is type O. What are ALL the possible blood types of their baby?

• IᴮIᴮ

• ii

• IᴬIᴬ

• Iᴮi