Apea plant with purple flowers and yellow seeds (ppyy) is crossed with a pea plant with white flowers and green seeds (ppyy). what are the possible phenotypes of the f1 offspring? a) ppyy and ppyy b)ppyy only c) ppyy and ppyy d) ppyy , ppyy , ppyy and ppyy

B

Explanation:

Mendel's law of independent assortment which states that alleles of different genes get sorted into gametes independent of one another is taking into cognizance here.

Because each parent is homozygous, the law of segregation tells us that gametes produced by the plant with purple flowers and yellow seeds will all be PY while the gametes produced by the plant with white flowers and green seeds will all be py.

A cross between these two gametes will give us an heterozygous F1 offspring (PpYy) called dihybrids

i.e. PY × py = PpYy

i think a) betsy can donate only blood to mark is correct because, mark and betsy have the same blood type. whereas nobody else has b+ blood so betsy can't donate to them.

synapse nervous system