Which best describes the pure lines in mendel's experiment

a. they were the f2 generation

b. they were heterozygous

c. they were homozygous

d. they could not reproduce

Which format should he use to present his data?

6. in the dna double helix, how are the two strands of dna held together? a. chemical bonds between base pairs hold the two strands of dna together. b. hydrogen bonds between the base pairs hold the two strands of dna together. c. hydrogen bonds between sugar groups and phosphate groups hold the two strands of dna together. d. chemical bonds between sugar groups and phosphate groups hold the two strands of dna together.

Which medullary index indicates a human hair? a. 0.653 b. 0.733 c. 0.516 d. 0.256