Apure breed black guinea pig was crossed with a pure breed white guinea pig. all the f1 generation where black. explain with diagram.

In the family tree below, people with the recessive trait of attached earlobes are shaded gray.

6. in domesticated cats, the following are independently assorting: normal ears (t) is dominant to tufted ears (t); curved whiskers (c) is dominant to straight whiskers (c); the presence of six toes (s) is dominant to five toes (s); gene for hair length is an x-linked codominant. the three phenotypes for hair length are long (xhxh), medium (xhxh), and short (xhxh); medium is the heterozygous condition. given two parents: ttccssxhxh x ttccssxhy how many different gametes could be formed in the female cat with respect to these four traits? how many phenotypes are possible in the offspring from this mating?

The negative change found inside the plasma membrane is created by potassium ions sodium ions hydrogen ions chlorine ions