Question 1

Nondisjunction may cause

Accepted Answer

A) trisomy 21. 
B) Turner syndrome. 
C) Jacobs syndrome. 
D) All answers are correct. 
E) Klinefelter syndromE. 
A) trisomy 21. 
B) Turner syndrome. 
C) Jacobs syndrome. 
D) All answers are correct. 
E) Klinefelter syndromE.

Question 2

Human cells have

Accepted Answer

A) 23 pairs of chromosomes. 
B) 23 chromosomes. 
C) 46 pairs of chromosomes. 
D) 2 pairs of sex chromosomes. 
E) one pair of autosomes. 
A) 23 pairs of chromosomes. 
B) 23 chromosomes. 
C) 46 pairs of chromosomes. 
D) 2 pairs of sex chromosomes. 
E) one pair of autosomes.

Question 3

If a haploid cell goes through mitosis it will generate

Accepted Answer

A) two haploid cells. 
B) two diploid cells. 
C) four haploid cells. 
D) four diploid cells. 
E) This is not possiblE. 
A) two haploid cells. 
B) two diploid cells. 
C) four haploid cells. 
D) four diploid cells. 
E) This is not possiblE.

Question 4

A zygote is

Accepted Answer

A) a haploid cell. 
B) a gamete. 
C) a direct product of meiosis. 
D) All answers are correct. 
E) a diploid cell. 
A) a haploid cell. 
B) a gamete. 
C) a direct product of meiosis. 
D) All answers are correct. 
E) a diploid cell.

Question 5

Genetic information is passed from one generation to the next through

Accepted Answer

A) DNA. 
B) asexual reproduction. 
C) sexual reproduction. 
D) gametes. 
E) All answers are correct. 
A) DNA. 
B) asexual reproduction. 
C) sexual reproduction. 
D) gametes. 
E) All answers are correct.

Question 6

If a diploid cell goes through mitosis it will generate

Accepted Answer

A) four haploid cells. 
B) two diploid cells. 
C) two haploid cells. 
D) four diploid cells. 
E) This is not possiblE. 
A) four haploid cells. 
B) two diploid cells. 
C) two haploid cells. 
D) four diploid cells. 
E) This is not possiblE.

Question 7

A gamete having more than one complete set of chromosomes

Accepted Answer

A) cannot be produced by meiosis. 
B) cannot participate in fertilization. 
C) is polyploid. 
D) will undergo mitosis. 
E) is not yet through meiosis. 
A) cannot be produced by meiosis. 
B) cannot participate in fertilization. 
C) is polyploid. 
D) will undergo mitosis. 
E) is not yet through meiosis.

Question 8

Alternate forms of the same gene

Accepted Answer

A) do not exist. 
B) are alleles. 
C) are homologs. 
D) are sister chromatids. 
E) do not occur in the same individual. 
A) do not exist. 
B) are alleles. 
C) are homologs. 
D) are sister chromatids. 
E) do not occur in the same individual.

Question 9

In meiosis,the separated sister chromatids move to opposite poles of the cell during

Accepted Answer

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

Question 10

The process by which homologous chromosomes exchange genetic material

Accepted Answer

A) is crossing over. 
B) is random fertilization. 
C) occurs only in bacteria. 
D) occurs only in animals. 
E) is independent assortment. 
A) is crossing over. 
B) is random fertilization. 
C) occurs only in bacteria. 
D) occurs only in animals. 
E) is independent assortment.

Question 11

People who have a single X chromosome are female,while those with XXY sex chromosomes are males.In order to be a female,a human

Accepted Answer

A) must have two X chromosomes. 
B) cannot have a Y chromosome. 
C) must have only one X chromosome. 
D) must have only one Y chromosome. 
E) cannot have an X chromosomE. 
A) must have two X chromosomes. 
B) cannot have a Y chromosome. 
C) must have only one X chromosome. 
D) must have only one Y chromosome. 
E) cannot have an X chromosomE.

Question 12

What two processes results in genetically-identical products?

Accepted Answer

A) mitosis and meiosis 
B) meiosis and asexual reproduction 
C) meiosis and sexual reproduction 
D) mitosis and sexual reproduction 
E) mitosis and asexual reproduction 
A) mitosis and meiosis 
B) meiosis and asexual reproduction 
C) meiosis and sexual reproduction 
D) mitosis and sexual reproduction 
E) mitosis and asexual reproduction

Question 13

Sexual reproduction includes

Accepted Answer

A) mitosis,gamete formation,and fertilization. 
B) mitosis,meiosis,and gamete formation. 
C) meiosis,gamete formation,and fertilization. 
D) mitosis,fertilization,and meiosis. 
E) None of the answers are correct. 
A) mitosis,gamete formation,and fertilization. 
B) mitosis,meiosis,and gamete formation. 
C) meiosis,gamete formation,and fertilization. 
D) mitosis,fertilization,and meiosis. 
E) None of the answers are correct.

Question 14

The process by which a bacterium uses a sex pilus to transfer genetic information to another bacterium is

Accepted Answer

A) meiosis. 
B) mutation. 
C) mitosis. 
D) conjugation. 
E) sexual reproduction. 
A) meiosis. 
B) mutation. 
C) mitosis. 
D) conjugation. 
E) sexual reproduction.

Question 15

Meiotic cell division replicates a cell's DNA ____________ and then divides ______________.

Accepted Answer

A) twice,once 
B) once,twice 
C) twice,twice 
D) once,once 
E) None of the answers are correct. 
A) twice,once 
B) once,twice 
C) twice,twice 
D) once,once 
E) None of the answers are correct.

Question 16

Sexual reproduction is important to the survival of a species in a changing environment because

Accepted Answer

A) sexual reproduction requires less overall energy expenditure than asexual reproduction. 
B) sexual reproduction produces genetically different individuals. 
C) sexual reproduction requires only one individual. 
D) sexual reproduction produces genetically-identical individuals. 
E) All answers are correct. 
A) sexual reproduction requires less overall energy expenditure than asexual reproduction. 
B) sexual reproduction produces genetically different individuals. 
C) sexual reproduction requires only one individual. 
D) sexual reproduction produces genetically-identical individuals. 
E) All answers are correct.

Question 17

When chromosomes fail to separate at either the first or second meiotic division,this

Accepted Answer

A) is known as crossing over. 
B) results in a sperm or egg cell with an abnormal number of chromosomes. 
C) is known as translocation. 
D) results in a failure to produce gametes. 
E) results in arrest during meiosis. 
A) is known as crossing over. 
B) results in a sperm or egg cell with an abnormal number of chromosomes. 
C) is known as translocation. 
D) results in a failure to produce gametes. 
E) results in arrest during meiosis.

Question 18

A female missing an X chromosome (XO)has Turner syndrome.

Accepted Answer

A) True 
 B)False

Question 19

In meiosis,paired homologs align down the center of the cell during

Accepted Answer

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

Question 20

The X chromosome is

Accepted Answer

A) larger than the Y chromosome. 
B) smaller than the Y chromosome. 
C) the same size as the Y chromosome. 
D) genetically identical to the Y chromosome. 
E) larger and genetically identical to the Y chromosomE. 
A) larger than the Y chromosome. 
B) smaller than the Y chromosome. 
C) the same size as the Y chromosome. 
D) genetically identical to the Y chromosome. 
E) larger and genetically identical to the Y chromosomE.

Exam 9: Sexual Reproduction and Meiosis

Nondisjunction may cause

Human cells have

If a haploid cell goes through mitosis it will generate

A zygote is

Genetic information is passed from one generation to the next through

If a diploid cell goes through mitosis it will generate

A gamete having more than one complete set of chromosomes

Alternate forms of the same gene

In meiosis,the separated sister chromatids move to opposite poles of the cell during

The process by which homologous chromosomes exchange genetic material

People who have a single X chromosome are female,while those with XXY sex chromosomes are males.In order to be a female,a human

What two processes results in genetically-identical products?

Sexual reproduction includes

The process by which a bacterium uses a sex pilus to transfer genetic information to another bacterium is

Meiotic cell division replicates a cell's DNA ____________ and then divides ______________.

Sexual reproduction is important to the survival of a species in a changing environment because

When chromosomes fail to separate at either the first or second meiotic division,this

A female missing an X chromosome (XO)has Turner syndrome.

In meiosis,paired homologs align down the center of the cell during

The X chromosome is

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Meiotic cell division replicates a cell's DNA and then divides __.