Genetics and Blood Type Review

Which of the following would be considered homozygous recessive

• AA

• Aa

• aa

• AaA

Which of the following is considered heterozygous?

• AA

• Aa

• aa

• AaA

___________are different forms of the same gene that are always found on the same position of two homologous chromosomes.

• alleles

• chromatids

• phenotypes

• genotypes

During fertilization, offspring receive ______ allele(s) from each parent for a trait

• 4

• 3

• 2

• 1

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

What is a genotype?

• alternative form of a gene

• the physical characteristics of a trait

• specific set of genes for a trait

• the study of biological inheritance

Tags

NGSS.HS-LS1-1

What is a phenotype?

• alternative form of a gene

• the physical characteristics of a trait

• specific set of genes for a trait

• the study of biological inheritance

What is the purpose of a Punnett square?

• To predict how many offspring will be produced

• To track traits through family generations

• To investigate blood types

• To predict the probability of what type of offspring can be produced

Tags

NGSS.HS-LS3-3

What is the purpose of a pedigree?

• To predict how many offspring will be produced

• To track traits through family generations

• To investigate blood types

• To predict the probability of what type of offspring can be produced

which combination would produce a 1:2:1 ratio of genotypes and a 3:1 ratio of phenotypes?

• AA x aa

• AA x AA

• Aa x Aa

• aa x aa

In a dihybrid cross, what is the ratio for phenotype between organisms that are heterozygous for both traits (RrYy)

• 1:2:1

• 9:3:3:1

• 3:1

• 4:2:2:1