.) You cross a pea plant with purple flowers to a plant with white flowers. The resulting offspring have a

mixture of purple and white flowers. What were the possible ;genotypes of the parents if the purple allele is dominant (B) and the white allele is recessive (b)? ;(Hint: ;draw Punnett ;squares).

Parent ;1: ;Bb, Parent 2: BB

Parent ;1: ;BB, ;Parent ;2: ;bb

Parent ;1: ;bb, ;Parent ;2: ;bb

Parent ;1: ;Bb, ;Parent ;2: bb

2.) Consider a diploid organism. What is the phenotypic ratio expected to be observed in the offspring produced by two homozygous recessive parents?

0 dominant: ;1 ;recessive

1 dominant: ;1 ;recessive

2 dominant : 1 recessive

3 dominant : 1 recessive

3.) Mendel’s law of Independent Assortment describes the independent movement of _______ into ______ during meiosis.

alleles of the same gene, gametes

alleles of different genes, ;gametes

alleles of different genes, the cytoplasm

alleles of the same gene, the cytoplasm

4.) Consider a plant character, ;leaf shape. ;In a tree species, ;it ;has been determined that ;leaf shape is controlled by a ;single gene segregating ;two alleles, and having ;rounded leaves ;is dominant to elongated leaves. ;

An ;experiment that crossed a ;rounded-leaf plant with an elongated-leaf plant, ;both from true-breeding lines, found the following results: all ;F1 offspring have rounded leaves. ;F2 offspring, which came from selfing of F1 individuals, also all have rounded leaves.

A hypothesis suggests that the law of _______ is ;most likely ;violated in this mating. Fill in the blank.

Gravity

No law was violated

Segregation

Dominance

5.) Two diploid individuals, one homozygous and the other heterozygous at a particular gene, make babies. Which of the following statements about the offspring genotype is correct? ;(Hint: ;draw Punnett squares)

All offspring are heterozygotes

All offspring are homozygotes

1/2 of the offspring are homozygotes and 1/2 are heterozygotes

1/4 of the offspring are ;homozygotes ;and 3/4 are ;heterozygotes