In human, brown eyes (B) is dominant to blue eyes (b). The gene is located on autosome. A couple both with brown eyes has a son with blue eyes. We can know that the genotype of the couple are heterozygotes.
A: 正确
B: 错误
A: 正确
B: 错误
举一反三
- Bruno has got_ A: blue eyes, fair skin, light brown hair, and he is six feet tall B: brown eyes, fair skin, dark hair, and he is six feet seven inches tall C: brown eyes, pale white skin, dark hair, and he is six feet tall D: blue eyes, darkish skin, light brown hair, and he is six feet seven inches tall
- What does Pecola dream to have?( ) A: green eyes B: brown skin C: blue eyes D: blonde hair
- The son of Mrs Green’s has a pair of mesmerizing blue eyes(Is the sentence grammatically correct?)
- In Bluest Eyes, Pecola poisons the dog because she believes that in return she will get a pair of blue eyes.
- Why does Pecola wants a pair of blue eyes?