Genetics Punnett Squares Practice

Which of the following best describes the genotype "Rr"?

• recessive

• heterozygous

• purebred

• all of the above

Tags

NGSS.HS-LS3-2

Which of the following genotypes are homozygous?

• Aa

• BB

• dd

• BB and dd

Tags

NGSS.HS-LS3-1

If black fur is dominant and white fur is recessive, what genotype would an organism with white fur have?

• FF

• Ff

• ff

Tags

NGSS.HS-LS3-1

If brown eyes are dominant and blue eyes are recessive, what color eyes do the parents in this Punnett Square have?

• one has brown eyes and the other has blue eyes

• they both have blue eyes

• they both have brown eyes

• there's no way to tell based on this information

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3

In pea plants, being tall is dominant and being short is recessive. Two tall plants mate. One has the genotype Tt and the other has the genotype TT. What is the chance that they will have a tall offspring?

• 0%

• 25%

• 50%

• 75%

• 100%

Tags

NGSS.HS-LS3-3

Having freckles is a dominant trait. Not having freckles is a recessive trait. A child is born and has NO freckles. The mother has freckles and the father does not have freckles. What is the genotype of the mother?

• FF

• Ff

• ff

Tags

NGSS.HS-LS3-1

Genotype refers to the ...

• physical expression of the genes
• the possible combination of alleles in a gene
• whether an allele is dominant or recessive
• how an organism will appear

Tags

NGSS.HS-LS3-2

What is a phenotype

• The genetic make up (code)
• The physical trait

If T=Tall & t=short, what is the genotypic ratio?

• 1:3
• 3:1
• 1:2:1
• 2:2

Tags

NGSS.HS-LS3-2

What genotype is missing from this Punnett Square?

• RrYy
• RRYY
• rryy
• RrYY

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2