Unit 4 Review

Which of the following would be considered homozygous recessive?

• Rr

• rR

• rr

• RR

Which of the following would be considered heterozygous?

• Rr

• RR

• rr

• RRr

Which of the following would be considered homozygous dominant?

• Rr

• rR

• rr

• RR

Each rung (setp) of DNA is made up of...

• Deoxyribose

• Phosphate & sugar

• Hydrogen bases

• Nitrogen bases

Which allele always shows when present and hides the other allele?

• Dominant

• Recessive

The backbone (sides) on a strand of DNA is made up of...

• Deoxyribose

• Phosphate & sugar

• Hydrogen bases

• Nitrogen bases

Adenine pairs with...

• Cytosine

• Thymine

• Guanine

• Adenine

Guanine pairs with...

• Cytosine

• Thymine

• Guanine

• Adenine

The shape of DNA is described as a...

• Triple Circle

• Double Square

• Double Helix

• Squared Circle

Which of the following are phenotypes (multiple answers)?

• Brown eyes

• Curly hair

• Tt

• Freckles

• GG

Tags

NGSS.HS-LS3-1