What do you call the trait that is always present and causes the other traits to disappear?

• Aggressive Trait

• Active Trait

• Recessive Trait

• Dominant Trait

What does the notation Tt mean to a geneticist?

• two dominant alleles

• at least one recessive alleles

• two recessive alleles

• one dominant and one recessive allele

Tags

NGSS.HS-LS3-1

In humans, the gene for curly hair (H) is incompletely dominant to the gene for straight hair (h). Individuals that are heterozygous (Hh) have wavy hair.
Two wavy-haired heterozygous parents have a child.
What is the likeliness that the child will have wavy hair?

• 1/4

• 1/2

• 3/4

• 4/4

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

NGSS.HS-LS3-3

Heredity is the passing of traits from ________ to _________.

• predator; prey

• parents; offspring

• one cell; another cell

• one species; another species

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Black hair color is dominant to white hair color in mice. Determine the phenotypic ratio for the offpring of a heterozygous black mouse and a white mouse.

• 4 Black: 0 White

• 3 Black: 1 White

• 2 Black: 2 White

• 0 Black: 4 White

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3

When one allele isn't totally dominant over the recessive allele (heterozygous = an in-between phenotype) it is called ______.

• incomplete dominance

• multiple alleles

• codominance

• linked genes

In humans, having freckles (F) is dominant to not having freckles (f). Two people with freckles get married and give birth to three children. Two of the kids have freckles and one does not. Both parents must have which genotype?

• FF

• Ff

• ff

Tags

NGSS.HS-LS3-1

What is the name for a cross that examines the inheritance of two traits?

• incomplete dominance

• codominance

• monohybrid

• dihybrid

In this cross, "G" codes for green frog skin and "g" codes for brown frog skin. What is the chance of getting a brown skinned baby frog from these parents?

• 0%

• 25%

• 50%

• 100%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

NGSS.HS-LS3-3

What term refers to mixture or blending of two traits?

• Codominance

• Non-dominance

• Complete dominance

• Incomplete dominance