Genetics

A calico cat shows both the traits for orange fur and black fur. What kind of allele expression is this?

• Incomplete dominance

• Codominance

• Complete dominance

• Mendelian inheritance

What goes in box 3

• Aabb

• Abab

• AAbb

• aaBb

This type of inheritance pattern is a MIXTURE of both traits, like the old theory of blending

• incomplete dominance

• co-dominance

• complete dominance

• recessive pattern

Match the following combinations of alleles:

• dd

• Heterozygous

• DD

• Homozygous recessive

• Dd

• Homozygous dominant

The genotypic percentage resulting from this this cross would be _____________________.

• 25% blue eye 75 % brown eye 
• BB = 25% Bb = 50% bb = 25%
• BB= 50 % bb = 50%
• All brown eye

What term describes what you see, or the physical appearance.

• Genotype
• Phenotype
• Homozygous
• Heterozygous

Two heterozygous parents produce offspring. What is the probability of the HOMOZYGOUS DOMINANT GENOTYPE appearing in the offspring generation?

• 75%
• 25%
• 50%
• 100%

Genotype refers to the ...

• physical expression of the genes
• the possible combination of alleles in a gene
• whether an allele is dominant or recessive
• how an organism will appear

the passing of genetic traits from parent to offspring.

• heredity
• trait
• gene
• allele

having two of the same genes for the trait (sometimes called purebred).

• homozygous
• hetrozygous
• protein
• chromosome