sparky1234
27.11.2020 •
Biology
A student is researching the inheritance patterns of different traits in chickens. She hypothesizes that red feathers are dominant over black, and the trait for crests are dominant over non-crested. She performs a test cross to confirm her hypothesis. To produce the F1 generation, she crosses two parents-- a chicken that is homologous for traits showing red and crested and a chicken that is homologous for traits showing black and non-crested. Which ratio best represents the phenotype of the F2 generation
9:3:3:1
1:1:1:1
2:2:1:1
16:0
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Ответ:
independent-water temp
dependent- amount of gas produced
Explanation: