Genetic Expression

In a Punnett square, a lower case letter stands for a ____________ allele.

• dominant

• recessive

• homozygous

• heterozygous

Hair color, height, eye color and freckles are examples of human traits. What do we call the physical expression of the genetic material of an organism?

• genetics

• heredity

• genotype

• phenotype

Tags

NGSS.HS-LS1-1

Which of the following alleles is homozygous (purebred) recessive?

• Tt

• tt

• TT

• t

Which of the following genotypes is homozygous dominant?

• A

• Aa

• AA

• aa

An organism’s genetic makeup; the pair of alleles for a trait is called a(n)

• dominant trait

• genotype

• phenotype

• recessive trait

Tags

NGSS.HS-LS3-1

Which of the following is the correct definition for a phenotype?

• The physical expression of a gene. (Characteristics)

• A strand of DNA made up of multiple mutations.

• The expression of one of your parents traits.

• The set of genes in our DNA which is responsible for a particular trait.

Tags

NGSS.HS-LS3-1

A segment of DNA that codes for a trait

• gene

• centromere

• chromosome

• chromatid

Tags

NGSS.HS-LS3-1

The alleles that an organism has/inherits are its

• genotype

• phenotype

• chromosome

• recessive

Tags

NGSS.HS-LS3-1

The observable expression of a trait is its

• phenotype

• genotype

• chromosome

• allele

The physical expression of a trait.

• phenotype

• genotype

• chromosome

• allele

Tags

NGSS.HS-LS1-1