Practice Test

Question 1

Which represents the cross between parent plants if one is heterozygous and has yellow-colored pods and the other is homozygous and has green-colored pods?

Revolt · Accepted Answer

A: Yy times yy

Question 2

Which scenario breaks the law of segregation?

Revolt · Accepted Answer

C: a gamete produced has 2 of the same alleles after meiosis II

Question 3

Some flowering plants appear to have offspring that have traits that are intermediate between those of the parents. Which type of dominance is exhibited by the offspring?

Revolt · Accepted Answer

C: incomplete dominance

Question 4

If Mendel had crossed a true breeding dominant plant with a true breeding recessive plant, in which of the three generations is the recessive trait visible?

Revolt · Accepted Answer

D: cap p  generation and  cap f sub 2  generation

Question 5

Mendel’s pea plants had either purple or white flowers. This means that the plants

Revolt · Accepted Answer

C: have two alleles for the gene.

Question 6

A cross is performed between a bird that is homozygous for red feathers and a bird that is homozygous for blue feathers. Purple offspring result due to incomplete dominance. Then, two of the purple offspring are crossed. What proportion of the offspring from the second cross will be purple?

Revolt · Accepted Answer

B: 2 in 4

Question 7

The Punnett square predicts the ratio of genotypes in the offspring based on the genotypes of the parents. Which Punnett square represents a cross between a mom who is heterozygous for dimples and a dad who is homozygous for no dimples?

Revolt · Accepted Answer

B: Image with description A Punnett square is shown. The columns are labeled Upper D and d. The rows are labeled d and d. Clockwise from upper left the boxes contain: Upper D d, d d, d d, Upper D d.

Question 8

Which are different forms of the same gene?

Revolt · Accepted Answer

A: alleles

Question 9

Who has hemophilia in the pedigree that is shown?

Revolt · Accepted Answer

B: Fred and Luke

Question 10

What is the probability of the offspring having red-green color blindness for the cross that is represented by the Punnett square?

Revolt · Accepted Answer

A: 25 percent

Practice Test Answers

More from this Course

TRY EDGENUITY HACKS