Punnett Squares and Sex Linked Traits Review

What ratio of the offspring from the cross shown will be homozygous recessive for the  trait of tallness? 

• 0 in 4

• 1 in 4

• 2 in 4

• 4 in 4

Tags

NGSS.HS-LS3-1

What genotype would go in box 2?

• BB

• Bb

• bb

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

What you see, or the physical appearance of a trait

• Genotype

• Heterozygous

• Phenotype

• Homozygous

A tongue roller(R) is dominant to a non-roller(r). Complete the following cross:

Homozygous tongue roller crossed with a non-roller.

What is the predicted genotypic ratio?

• 50% RR, 50% rr

• 25% RR, 75% rr

• 75% RR, 25% rr

• 100% Rr

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

A heterozygous yellow pea plant's genotype would be:

• YY

• Yy

• yy

• XY

TT is:

• Heterozygous

• Homozygous

The allele combinations, or letters of a trait are the:

• genetics

• meiosis

• phenotype

• genotype

Tags

NGSS.HS-LS3-2

The letters that represent different forms of a gene.

• alelle

• mutation

• trait

Trait of an organism that can be HIDDEN by the dominant form of a trait.

• Recessive trait

• Phenotype

• Alelle

• Dominant trait

Having two of the SAME alleles for a trait.

• Genotype

• Homozygous

• Heterozygous

• Dominant