# Punnett Squares Question Preview (ID: 61)

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Punnett Square Practice.

**If two heterozygous individuals are mated, what percentage of their offspring will have the dominant phenotype?**

a) 100%

b) 75%

c) 50%

d) 25%

**A husband and wife are going to have a baby. The husband has type AB blood, and the wife has type O. Which could NOT be the blood type of their child?**

a) AB

b) A

c) B

d) All of the above could be the blood type of their child.

**Fluffy fur is a dominant trait in guinea pigs. Two fluffy guinea pigs have a non-fluffy offspring. What must be the genotypes of the parents?**

a) AA and AA

b) Aa and AA

c) aa and aa

d) Aa and Aa

**A heterozygous individual is mated with a homozygous recessive individual. What percentage of their children will be heterozygous?**

a) 100%

b) 50%

c) 25%

d) 0%

**The probability of a human couple having a male child is:**

a) 100%

b) 75%

c) 50%

d) 25%

**A normal woman with a colorblind father marries a normal man. What is the probability that her child (who will be a male), will be colorblind?**

a) 100%

b) 75%

c) 50%

d) 25%

**Hemophilia is a sex-linked trait. What is the probability of a diseased female and a normal male producing a healthy child?**

a) 100%

b) 75%

c) 50%

d) 25%

**Having more than 5 fingers (Polydactyly) is a dominant trait. What is the probability that two people, each of which have 5 fingers per limb,will have a 6-fingered child?**

a) 100%

b) 75%

c) 50%

d) 0%

**Cuteness is a dominant trait in bunnies. Two bunnies heterozygous for cuteness have numerous offspring. What percentage of the offspring would be predicted to not be cute?**

a) 100%

b) 75%

c) 50%

d) 25%

**The genotype of a carrier of a sex-linked disease would be:**

a) Diseased

b) Healthy

c) X*Y

d) X*X

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To play games using the questions from above, visit ReviewGameZone.com and enter game ID number: 61 in the upper right hand corner or click here.

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