Shirley Zhu
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High School AP Biology (Heredity) Quiz on Heredity, created by Shirley Zhu on 03/24/2015.

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Shirley Zhu
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Question 1 of 27

1

Which of the following diseases only occurs in females?

Select one of the following:

  • Down syndrome

  • Tay-Sachs disease

  • Turner syndrome

  • Sickle cell anemia

  • Red-green color blindness

Explanation

Question 2 of 27

1

Which of the following diseases occurs mostly in males?

Select one of the following:

  • Down syndrome

  • Tay-Sachs disease

  • Turner syndrome

  • Sickle cell anemia

  • Red-green color blindness

Explanation

Question 3 of 27

1

What is another name for Trisomy 21?

Select one of the following:

  • Down syndrome

  • Tay-Sachs disease

  • Turner syndrome

  • Sickle cell anemia

  • Red-green color blindness

Explanation

Question 4 of 27

1

Which of the following diseases is characterized by the misfolding of hemoglobin?

Select one of the following:

  • Down syndrome

  • Tay-Sachs disease

  • Turner syndrome

  • Sickle cell anemia

  • Red-green color blindness

Explanation

Question 5 of 27

1

The heterozygotes of which of the following disease have resistance to malaria?

Select one of the following:

  • Down syndrome

  • Tay-Sachs disease

  • Turner syndrome

  • Sickle cell anemia

  • Red-green color blindness

Explanation

Question 6 of 27

1

Which of the following is caused by the enzyme deficiency?

Select one of the following:

  • Down syndrome

  • Tay-Sachs disease

  • Turner syndrome

  • Sickle cell anemia

  • Red-green color blindness

Explanation

Question 7 of 27

1

Which of the following results in aneuploidy?

Select one of the following:

  • Crossing-over

  • Independent assortment

  • Translocation

  • Nondisjuntion

  • Segregation

Explanation

Question 8 of 27

1

Which of the following is characterized by the random distribution of each maternal and paternal chromosome into daughter cells?

Select one of the following:

  • Crossing-over

  • Independent assortment

  • Translocation

  • Nondisjunction

  • Segregation

Explanation

Question 9 of 27

1

What is it called when homologous pairs or sister chromatids fail to separate during anaphase?

Select one of the following:

  • Crossing-over

  • Independent assortment

  • Translocation

  • Nondisjunction

  • Segregation

Explanation

Question 10 of 27

1

What is it called when part of a chromomse breaks of and attaches to a nonhomologous chromosome?

Select one of the following:

  • Crossing-over

  • Independent assortment

  • Translocation

  • Nondisjunction

  • Segregation

Explanation

Question 11 of 27

1

What is it called when part of a chromosome breaks off and attaches to a homologous chromosome?

Select one of the following:

  • Crossing-over

  • Independent assortment

  • Translocation

  • Nondisjunction

  • Segregation

Explanation

Question 12 of 27

1

What is the probability of the phenotype of the offspring will be dominant for A and recessive for B?

Select one of the following:

  • 0

  • 1/4

  • 1/2

  • 3/4

  • 3/16

Explanation

Question 13 of 27

1

What is the probability that the dominant phenotype will be produced by parent Aa x Aa?

Select one of the following:

  • 0

  • 1/4

  • 1/2

  • 3/4

  • 3/16

Explanation

Question 14 of 27

1

What is the probability that the genotype AABb will be produced by the parents AaBb x aabb?

Select one of the following:

  • 0

  • 1/4

  • 1/2

  • 3/4

  • 3/16

Explanation

Question 15 of 27

1

What is the probability that the gamete ab will be produced by the parent AaBb?

Select one of the following:

  • 0

  • 1/4

  • 1/2

  • 3/4

  • 3/16

Explanation

Question 16 of 27

1

There are three alleles for blood type in humans (2n). How many different alleles may be present in the bone cell of one individual?

Select one of the following:

  • One

  • Two

  • Three

  • Six

  • Eight

Explanation

Question 17 of 27

1

How many different genotypes are possible form the cross Aabb x AaBb?

Select one of the following:

  • Three

  • Four

  • Six

  • Nine

  • Sixteen

Explanation

Question 18 of 27

1

How many phenotypes are possible from the cross Aabb x AaBb?

Select one of the following:

  • Two

  • Four

  • Six

  • Eight

  • Sixteen

Explanation

Question 19 of 27

1

Which of the following processes creates new combinations of genes on chromosomes?

Select one of the following:

  • Base pair substitution

  • Posttranscriptional processing

  • Independent assortment

  • Crossing-over

  • Segregation

Explanation

Question 20 of 27

1

A couple has six daughters. What is the probability the next child will be a daughter?

Select one of the following:

  • 0

  • 1/2

  • (1/2)^6

  • (1/2)^7

  • 1

Explanation

Question 21 of 27

1

A couple has four children, only one of whom has sickle cell anemia. What is the probability their fifth child will be phenotypically normal?

Select one of the following:

  • 0

  • 1/4

  • 1/2

  • 3/4

  • 1

Explanation

Question 22 of 27

1

In a fictional species of insect, eye shape is determined by a single gene with two alleles. An insect homozygous for round eyes is crossed with an insect homozygous for elongated eyes. All the F1 offspring have oval eyes. If members of the F1 generation are crossed, what percent of their offspring (F2) are expected to have round eyes?

Select one of the following:

  • 100 percent

  • 75 percent

  • 50 percent

  • 25 percent

  • 0 percent

Explanation

Question 23 of 27

1

In drosophila, normal wings (N) are dominant to vestigial wings (n) and a grey body (G) is dominant to a black body (g). The offspring of a particular cross produced 412 flies with normal wings, and 192 flies with grey bodies and 220 flies with black bodies. Which were most likely the genotypes of the parents?

Select one of the following:

  • NnGg x NnGg

  • NnGg x NNGg

  • Nngg x nnGg

  • NnGg x NNgg

  • NNgg x nnGG

Explanation

Question 24 of 27

1

In drosophila, normal wings (N) are dominant to vestigial wings (n), and a grey body (G) is dominant to a black body (g). A cross between heterozygote flies and homozygote recessive flies produced 402 grey, normal-winged flies, 416 black, vestigial-winged flies, 90 black, normal winged flies, and 92 grey, vestigial winged flies. Which of the following best explains these results?

Select one of the following:

  • Independent assortment of homologous chromosomes

  • Segregation of alleles during gamete formation

  • Crossing-over between liked genes

  • Heterozygotes crossed with homozygotes are expected to have these ratios.

  • Some of the flies must have mated with flies that weren't part of the experiment.

Explanation

Question 25 of 27

1

Which of the following best describes the relationship between linked genes and the rate of crossing-over between them?

Select one of the following:

  • Two genes far apart on a chromosome will not appear to assort independently.

  • The distance between the genes is inversely proportional to their rate of crossing-over.

  • The recombination frequency is directly proportional to the distance between genes.

  • Two genes on different chromosomes may be linked if they are inherited together.

  • Chromosomes that contain sex-linked genes do not assort independently.

Explanation

Question 26 of 27

1

Human spermatogenesis produced four sperm, two with 24 chromosomes and two with 22 chromosomes. The nondisjunction event that caused this probably occurred during which phase of meiosis?

Select one of the following:

  • S phase

  • Meiosis I

  • Anaphase II

  • Interkinesis

  • Cytokinesis

Explanation

Question 27 of 27

1

A karyotype of a white blood cell can be used to diagnose all of the following disorders EXCEPT

Select one of the following:

  • Down syndrome

  • Sickle cell anemia

  • Turner syndrome

  • Klinefelter syndrome

  • Chromosomal translocation

Explanation

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