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Heredity Part 1 Concept Review

Last updated almost 8 years ago

16 questions

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An assignment to insure   understanding of how to use a Punnett square.

Question 1

1.

In fruit flies Red eyes (wild) are dominant to white eyes (Sepia). Perform a cross between a White eyed female and a homozygous Red eyed male.

Question 2

2.

Question 3

3.

Question 5

5.

You take two of the F! offspring of the above cross and cross them. Create the punnett square for the cross below.

Question 6

6.

Question 7

7.

Question 10

10.

Question 11

11.

Question 12

12.

Question 13

13.

For the above cross, the genotypes of the offspring would be?

RR 100%

RR 75%

RR 50 %

RR 25%

RR 0%

Rr 100%

Rr75%

Rr 50%

Rr25%

Rr 0%

rr 100%

rr 75%

rr 50%

rr 25%

rr 0%

For the above cross, the Phenotype of the offspring would be?

Red Eyed 100%

Red Eyed 75%

Red Eyed 50%

Red Eyed 25%

Red Eyed 0%

White Eyed 100%

White Eyed 75%

White Eyed 50%

White Eyed 25%

White Eyed 0%

For the above cross, the genotypes of the offspring would be?

RR 100%

RR 75%

RR 50 %

RR 25%

RR 0%

Rr 100%

Rr75%

Rr 50%

Rr25%

Rr 0%

rr 100%

rr 75%

rr 50%

rr 25%

rr 0%

For the above cross, the Phenotype of the offspring would be?

Red Eyed 100%

Red Eyed 75%

Red Eyed 50%

Red Eyed 25%

Red Eyed 0%

White Eyed 100%

White Eyed 75%

White Eyed 50%

White Eyed 25%

White Eyed 0%

Which is one of the seven characteristics that Mendel
observed in pea plants?

a. flower size

b. seed texture

c. leaf shape

d. stem color

Imagine you are performing a cross involving seed
color in garden pea plants. What F1 offspring would you
expect if you cross true-breeding parents with green seeds
and yellow seeds? Yellow seed color is dominant over
green.

a. 100 percent yellow-green seeds

b. 100 percent yellow seeds

c. 50 percent yellow, 50 percent green seeds

d. 25 percent green, 75 percent yellow seeds

The observable traits expressed by an organism are
described as its ________.

a. phenotype

b. genotype

c. alleles

d. zygote

A recessive trait will be observed in individuals that
are ________ for that trait.

a. heterozygous

b. homozygous or heterozygous

c. homozygous

d. diploid