Question 1

A male with an extra X chromosome (XXY)has Turner syndrome.

Accepted Answer

A) True 
 B)False

Question 2

In meiosis,homologous chromosomes align next to one another during

Accepted Answer

A) interphase I. 
B) metaphase II. 
C) prophase I. 
D) metaphase I. 
E) prophase II. 
A) interphase I. 
B) metaphase II. 
C) prophase I. 
D) metaphase I. 
E) prophase II.

Question 3

The number of chromosomes in a daughter cell produced by mitosis is the same as the number of chromosomes in the parent cell.

Accepted Answer

A) True 
 B)False

Question 4

The Y chromosome

Accepted Answer

A) is larger than the X chromosome. 
B) contains more genes than the X chromosome. 
C) is the same size as the X chromosome. 
D) is smaller than the X chromosome. 
E) is genetically identical to the X chromosomE. 
A) is larger than the X chromosome. 
B) contains more genes than the X chromosome. 
C) is the same size as the X chromosome. 
D) is smaller than the X chromosome. 
E) is genetically identical to the X chromosomE.

Question 5

What process creates daughter cells with a mixture of paternal and maternal chromosomes?

Accepted Answer

A) asexual reproduction 
B) semi-conservative replication 
C) random fertilization 
D) independent assortment 
E) mutation 
A) asexual reproduction 
B) semi-conservative replication 
C) random fertilization 
D) independent assortment 
E) mutation

Question 6

Genetic variability will not occur among offspring if independent assortment does not occur during anaphase I of meiosis.

Accepted Answer

A) True 
 B)False

Question 7

Meiosis requires that homologous chromosomes align with one another so that crossing over may occur.

Accepted Answer

A) True 
 B)False

Question 8

The human chromosomes that do not determine gender are

Accepted Answer

A) not found in pairs. 
B) the "X" and "Y" chromosomes. 
C) autosomes. 
D) called sex chromosomes. 
E) None of the answers are correct. 
A) not found in pairs. 
B) the "X" and "Y" chromosomes. 
C) autosomes. 
D) called sex chromosomes. 
E) None of the answers are correct.

Question 9

Fraternal twins (dizygotic)result from the fertilization of

Accepted Answer

A) two eggs and two sperm. 
B) two eggs and one sperm. 
C) one egg and two sperm. 
D) one egg and one sperm. 
E) two eggs and one sperm OR one egg and two sperm. 
A) two eggs and two sperm. 
B) two eggs and one sperm. 
C) one egg and two sperm. 
D) one egg and one sperm. 
E) two eggs and one sperm OR one egg and two sperm.

Question 10

Genetic variability will not occur among offspring if crossing over does not occur during prophase I of meiosis.

Accepted Answer

A) True 
 B)False

Question 11

In meiosis II,cytokinesis results in the production of

Accepted Answer

A) two haploid daughter cells. 
B) four diploid daughter cells. 
C) four haploid daughter cells. 
D) two diploid daughter cells. 
E) one daughter cell identical to the parent cell that underwent meiosis. 
A) two haploid daughter cells. 
B) four diploid daughter cells. 
C) four haploid daughter cells. 
D) two diploid daughter cells. 
E) one daughter cell identical to the parent cell that underwent meiosis.

Question 12

In meiosis,homologous chromosomes separate during

Accepted Answer

A) prophase I. 
B) prophase II. 
C) anaphase I. 
D) metaphase I. 
E) anaphase II. 
A) prophase I. 
B) prophase II. 
C) anaphase I. 
D) metaphase I. 
E) anaphase II.

Question 13

Mitosis does not require that homologous chromosomes align with one another.

Accepted Answer

A) True 
 B)False

Question 14

The number of chromosomes in a daughter cell produced by meiosis is the same as the number of chromosomes in the parent cell.

Accepted Answer

A) True 
 B)False

Question 15

If a human zygote has either 45 or 47 chromosomes it was caused by nondisjunction.

Accepted Answer

A) True 
 B)False

Question 16

Most cultivated bananas are triploid.How could these be generated from diploid parent banana plants?

Accepted Answer

A) nondisjunction in meiosis followed by normal fertilization 
B) nondisjunction in mitosis followed by normal fertilization 
C) fertilization of a haploid egg by two haploid sperm 
D) fertilization of a haploid egg by a haploid sperm 
E) fertilization of a diploid somatic cell by a haploid sperm 
A) nondisjunction in meiosis followed by normal fertilization 
B) nondisjunction in mitosis followed by normal fertilization 
C) fertilization of a haploid egg by two haploid sperm 
D) fertilization of a haploid egg by a haploid sperm 
E) fertilization of a diploid somatic cell by a haploid sperm

Question 17

There are two divisions in meiosis resulting in four daughter cells.

Accepted Answer

A) True 
 B)False

Question 18

If human gametes were diploid

Accepted Answer

A) the products of fertilization would have the same number of chromosomes as their parents. 
B) the products of fertilization would have fewer chromosomes than their parents. 
C) fertilization could not occur. 
D) the products of fertilization would have more chromosomes than their parents. 
E) the embryo would be diploid. 
A) the products of fertilization would have the same number of chromosomes as their parents. 
B) the products of fertilization would have fewer chromosomes than their parents. 
C) fertilization could not occur. 
D) the products of fertilization would have more chromosomes than their parents. 
E) the embryo would be diploid.

Question 19

1n is an abbreviation for

Accepted Answer

A) haploid. 
B) somatic cells. 
C) diploid. 
D) mitosis. 
E) meiosis. 
A) haploid. 
B) somatic cells. 
C) diploid. 
D) mitosis. 
E) meiosis.

Question 20

In humans,germ cells are located in

Accepted Answer

A) bone marrow. 
B) blood. 
C) all cells. 
D) all tissues. 
E) testes and ovaries. 
A) bone marrow. 
B) blood. 
C) all cells. 
D) all tissues. 
E) testes and ovaries.

Exam 9: Sexual Reproduction and Meiosis

A male with an extra X chromosome (XXY)has Turner syndrome.

In meiosis,homologous chromosomes align next to one another during

The number of chromosomes in a daughter cell produced by mitosis is the same as the number of chromosomes in the parent cell.

The Y chromosome

What process creates daughter cells with a mixture of paternal and maternal chromosomes?

Genetic variability will not occur among offspring if independent assortment does not occur during anaphase I of meiosis.

Meiosis requires that homologous chromosomes align with one another so that crossing over may occur.

The human chromosomes that do not determine gender are

Fraternal twins (dizygotic)result from the fertilization of

Genetic variability will not occur among offspring if crossing over does not occur during prophase I of meiosis.

In meiosis II,cytokinesis results in the production of

In meiosis,homologous chromosomes separate during

Mitosis does not require that homologous chromosomes align with one another.

The number of chromosomes in a daughter cell produced by meiosis is the same as the number of chromosomes in the parent cell.

If a human zygote has either 45 or 47 chromosomes it was caused by nondisjunction.

Most cultivated bananas are triploid.How could these be generated from diploid parent banana plants?

There are two divisions in meiosis resulting in four daughter cells.

If human gametes were diploid

1n is an abbreviation for

In humans,germ cells are located in

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