Ở đậu Hà lan tính trạng thân cao là trội với thân thấp. Hoa đỏ là trội so với thân trắng. a. Quy ước gen và cho biết kiểu gen của những cây có kiểu hình sau:
Cây thân cao, hoa trắng thuần chủng; Cây thân thấp, hoa đỏ thuần chủng; Cây thân cao hoa đỏ.
b. Viết các giao tử có thể được tạo ra từ các cây có kiểu gen như trên.
answer; ///progressive relaxation;
it has to be understood that the sea water contains a huge amount of sodium and chlorine ions and if they enter the cell of the atlantic cod fish, the cell will shrivel and the fish will die. to avoid such a condition, the fish uses active transport for the purpose of removing the ions against the gradient.
explanation:
the atlantic cod is not a maritime osmoconformer. its native application of salts is less than that of the seawater it lives in. it is continually falling water from the gills to the ocean via osmosis.
countering that, the fish is going to be swallowing seawater. but since its internal collection of salts is lower than seawater, the fish will want to go free of excess salt, and since that's going upon a gradient, then active transport, requiring energy, must be used to pump out the salt. much marine fish use the organs to filter out the salt and these fish discharge very straight urine.
the answer would be 10%
a. to encourage apoptosis