CDA 2 Review 2023/24

What are the possible phenotype(s) of the offspring? (A-Brown hair; a-blond hair)

• 50 % Brown Hair and 50% Blond Hair

• 25 % Brown Hair and 75% Blond Hair

• 75 % Brown Hair and 25% Blond Hair

• 0% Brown Hair and 100% Blond Hair

What is the probability of heterozygous offspring?

• 0%

• 100%

• 50%

• 25%

What allele combination should go in the missing box?

• AA
• Aa
• aa
• none of these

What are the possible genotypes for this cross?

• TT = 25% Tt= 50% tt=25%

• all tall

• TT= 75% tt = 25%

• Tt = 100%

matter is recycled, whereas __________is constantly burned.

This image represents what type of human effect on the environment?

Which options demonstrate ways humans are harming the environment.

• logging

• using plastic

• planting trees

• carpooling to work.

Consider the levels of the environment. The largest or broadest level is the __________

The gene whose trait will be hidden if there is a dominant allele present

• Dominant Allele

• Recessive Allele

• Trait

• Phenotype

The passing of physical characteristics from a parent to an offspring

• Heredity

• Homozygous

• Heterozygous

• Codominance