Review: Non mendelian genetics

A single gene has 3 or more alternative forms. These are called

• heterozygotes

• multiple alleles

• epistatic

• polygenic

In mice, the homozygous mice are black and white. The heterozygous mice are gray. What pattern of inheritance is expressed in fur color in mice?

• complete dominance and recessiveness
• co-dominance
• incomplete dominance
• pleiotropy

AB blood type is an example of what type of inheritance?

• complete dominance
• incomplete dominance
• codominance
• polygenic inheritance

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%

Blood types are an example of co dominance and

• incomplete dominance
• sex linked traits
• multiple alleles
• polygenics

How many PAIRS of chromosomes do humans have?

• 23
• 46
• 1
• 2

How are Incomplete Dominance and Co Dominance different than a normal Mendelian cross?

• There is no difference
• The heterozygous genotype has a unique phenotype
• There is no heterozygous genotype
• There is only one phenotype regardless of genotype.

What percentage of the offspring will have this recessive disease?

• 0%
• 25%
• 50%
• 75%

What percentage of the female offspring will be a carrier for this recessive disease (a)?

• 0%
• 50%
• 100%
• 25%

How many PAIRS of sex chromosomes do humans have?

• 23
• 46
• 1
• 2