What are the possible genotypes and phenotypes of the children of a cross between a male with type AB blood and a female type A blood whose father was type O blood?

Which best describes a gene? a. a sister chromatid b. a chromosome c. a tetrad d. a piece of a chromosome

The cell membrane controls what enters and leaves the cell. which of the structures in the diagram below is the cell membrane? — f оооо

1. isogamy 1 organisms with gametes of the same size and shape 2. anisogamy organisms with gametes of different sizes and shapes 3. oogamy 2 organisms with gametes of the same shape but different sizes 4. gonads gamete-producing organs in lower plants 5. gametangia gamete-producing organs in animals