2.2.3

Which of the following correctly states the genotype probabilities for the offspring of the parents shown in this punnett square?

• 50% heterozygous 50% homozygous dominant

• 50% heterozygous 50% homozygous recessive

• 50% heterozygous 25% homozygous recessive 25% homozygous dominant

• 100% heterozygous

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

How many of the males in this pedigree show the trait being studied?

• 2

• 3

• 4

• 6

Tags

NGSS.HS-LS3-1

Which of the following is a phenotype?

• Aa

• red hair

• heterozygous

• DNA

An individual with two different alleles for a specific trait is said to be _____________.

• homozygous

• heterogenous

• homogenous

• heterozygous

Which term correctly describes an individual with a pair of the same alleles for a trait? 

• homologous

• heterozygous

• homozygous

• heterologus

Phenotype refers to the _________ of an individual

• genetic makeup

• physical appearance

• recessive alleles

• dominant alleles

An organism that has two identical genes for a trait is said to be _________.

• hybrid for the trait

• incompletely dominant for the trait

• heterozygous for the trait

• homozygous for the trait

Which of these would best be described as a phenotype?

• blue eyes

• mutation

• Bb

• Tt

How many females are in this pedigree?

• 3

• 4

• 6

• 7

Which genotype is homozygous dominant?

• HH

• Hh

• hh