Genetics

Which of the following genotypes is homozygous recessive?

• RR
• Rr
• rr
• None of the Above

Which of the following terms refers to the different possibilities of a gene?

• chromosome
• DNA
• Punnett Squares
• allele

Tags

NGSS.HS-LS3-2

This image shows a...

• Punnett Square
• Phenotype
• Genotype
• Dominant allele

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

What does a Punnett Square help you do?

• Determine the ratio of phenotypes
• Determine the ratio of genotypes
• Predict possible traits the offspring will have
• All of the above

Tags

NGSS.HS-LS3-3

A phenotype is the...

• letter combination
• dominant gene
• recessive gene
• physical appearance

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Another word for homozygous is...

• purebred
• hybrid
• heterozygous
• dominant

Tags

NGSS.HS-LS3-1

 Dominant alleles are-

• capital
• lowercase
• both
• neither

 Recessive alleles are-

• capital
• lowercase
• both
• neither

Tags

NGSS.HS-LS3-2

Tt is-

• homozygous dominant
• homozygous recessive
• heterozygous
• none of these

Tags

NGSS.HS-LS3-1

Purple is dominant to white. A heterozygous purple flower is crossed with a white flower. What are the genotypes and phenotypes of the offspring?

• 100% Pp (purple)
• 50% Pp (purple); 50% pp (white)
• 75% Pp (purple); 25% pp (white)
• 25% PP, 50% Pp, 25% pp
  75% purple, 25% white

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3