Genetics EOC Practice

Name B.

• phosophate
• glucose
• deoxyribose
• nitrogen base

The passing of traits from parent to offspring 

• Heredity 
• Genetics 
• Hybrid 
• Probability 

Which of the following is a phenotype?

• BB
• Bb
• bb
• Blue eyes

Which of the following is heterozygous

• FF
• tt
• Gg
• RR

Mark is heterozygous. If B is for brown hair, and b is for blonde hair, what is Mark's genotype?

• BB
• bb
• Bb
• bB

A Punnett square of red (R) and white (r) flower colors is shown below.

Which explanation describes how the presence of a white flower color occurred in the offspring?

• Parents are homozygous for the dominant gene expressing red color.

• Parents are heterozygous for the dominant gene expressing red color.

• Parents are homozygous for the recessive gene expressing white color.

• Parents are heterozygous for the recessive gene expressing white color.

In some cat breeds, short hair (H) is dominant to long hair (h). A homozygous male cat with short hair and a long-haired female cat produce offspring. Which percentage of the offspring is predicted to have short hair?

• 25%

• 50%

• 75%

• 100%

When red carnations are crossed with white carnations, the resulting flowers are pink. Pink carnations are an example of what type of inheritance pattern?

• incomplete dominance

• recessive alleles

• dominant alleles

• codominance

The table below lists human blood group genotypes and phenotypes.

Why is the AB phenotype a result of codominance?

• Neither allele is expressed in the phenotype.

• Both alleles are equally expressed in the phenotype.

• One allele masks the expression of the other during expression of the phenotype.

• Both alleles blend together to form an intermediate phenotype during expression.

This diagram shows a diploid cell with two pairs of homologous chromosomes.

Due to independent assortment, what is the possible genetic make-up of gametes produced by this organism?

• SsTt

• Ss, Tt

• S, s, T, t

• ST, St, sT, st