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APBIO-XDX2T4

A new species of plant was discovered, and it is found that the stems occur in both a hairless (H) and hairy (h) variety. To investigate the inheritance patterns of stem hair, a researcher crossed a hairless plant with a hairy one. The result was 13 hairy plants and 11 hairless plants.

Based on this information, which of the following must be the genotypes of the parents?

A

HH x Hh

B

Hh x Hh

C

Hh x hh

D

HH x hh