Achicken with black feathers (bb) is crossed with a chicken with white feathers (ww). the offspring have black and white feathers. what is the genotype of the offspring? 1. 2. 3. 4. punnett squares

Which phase of the cell cycle ensures that identical copies of the dna are made for daughter cells?

What two conditions must be present for osmosis to occur?

*a mastectomy is the surgical removal of one or both breasts, either partially of fully. an oophorectomy is the surgical removal of an ovary or ovaries.analyze a woman’s risk of dying of cancer if she carries a mutated brc1 gene.how do heredity and inheritance relate to the data presented in these charts? what data would you need to see in order to draw conclusions about the effectiveness of preventive surgeries? what does the age at diagnosis tell you about the mutation? explain how breast-cancer genes are still present in the population, despite cancer-related surgeries and deaths.