Một loài có bộ NST lưỡng bội 2n=18.Xét 4 tế bào A, B,C, D của loài nguyên phân số đợt lớn dần từ A đến D đã cần môi trường cung cấp số NST đơn bằng 208 lần bộ NST lưỡng bội của loài. Hãy xác định 1/ số đợt nguyên phân của mỗi tế bào
2/ số NST môi trường phải cung cấp cho các tế bào trên

In which of the following relationships is one organism always benefited while the other organism is always harmed

Yeast cells reproduce quickly by budding. this is a form of reproduction so all the yeast cells a) sexual; vary b) asexual; vary c) asexual; are identical d) sexual; differ from the parents submit hint structures and functions of cells cellular reproduction

How do water’s relative densities as a solid and a liquid differ from that of most other substances? water’s solid and liquid forms have different densities, while most other substances have solid and liquid forms with similar densities. water’s solid and liquid forms have similar densities, while most other substances have solid and liquid forms with different densities. water’s liquid form is less dense than its solid form, while the opposite is true of most other substances. water’s solid form is less dense than its liquid form, while the opposite is true of most other substances.