Rose comb (R) in chickens is dominant over single comb (r). Cross a white heterozygous rose comb chicken to a black single comb chicken.

What is the genotype of the white heterozygous rose comb chicken?

What is the genotype of the black, single combed chicken?

What fraction of the offspring will be blue rose comb?

What fraction of the offspring will be blue?

What fraction of the offspring will be single comb?

What fraction of the offspring will be white rose comb?​

How does food concentration affect yeast activity

Even though the ostrich is a flightless bird, ostriches still possess wings that stretch approximately two meters across when fully extended. scientists speculate that when dinosaurs became extinct, some of the birds that lived during that time became land dwellers since they were able to consume the food that the dinosaurs once ate. over time, these species grew larger and heavier. eventually, the ostrich species became too big to fly. the wings found on ostriches are known as a. analogous structures. b. homologous structures. c. vestigial structures. d. symmetrical structures.

The two main stages of cell division are called