Probability and Punnett Squares

The results from a Punnett square can be used to find the ______________ that a certain allele combination will occur in offspring.

• Probability

• Pedigree

• Traits

• Genes

Tags

NGSS.HS-LS3-3

NGSS.HS-LS4-3

What are the possible genotypes for a cross between two people that are heterozygous for the same trait?

• TT = 25% Tt= 50% tt=25%
• All tall
• TT= 75% tt = 25%
• Tt = 100%

Tags

NGSS.HS-LS3-3

Ms. Reyes asked Aaron to describe his phenotype. What should he describe based on her question?

• His genes
• His physical traits
• His age
• His grades

The different forms of genes are known as

• nucleic acids

• probabilities

• traits

• alleles

Two of the same genes for a trait (sometimes called purebred). BB or bb

• homozygous
• hetrozygous
• protein
• chromosome

Tags

NGSS.HS-LS3-1

Has two different alleles for a trait (sometimes called hybrid); Example: Bb

• protein

• homozygous

• heterozygous

• genotype

What would the ratio for genotypes be based on this Punnett Square?

• 2Bb:2bb

• 2BB:2Bb

• 1BB:2Bb:1bb

• 4Bb

Tags

NGSS.HS-LS3-3

Which is a true statement about this picture?

• Brown is recessive

• Brown is dominant

• Blue is dominant

• Blue is codominant

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

An organisms's allele combination is known as:

• phenotype

• mutation

• hybrid

• genotype

If a homozygous black cat (BB) is crossed with a homozygous white cat (bb), what is the probability of having a cat with white fur?

• 100%

• 0%

• 75%

• 25%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3