Question 1

Genes A and B are on the same chromosome.What gametes could an individual with the allele combination AABB produce?

Accepted Answer

A) AABB 
B) A 
C) AB 
D) B 
E) AAB 
A) AABB 
B) A 
C) AB 
D) B 
E) AAB

Question 2

Genes A and B are on the same chromosome.If a person has one chromosome with the alleles AB and a second chromosome with the alleles ab,how could they produce a gamete with a chromosome containing the alleles Ab or aB?

Accepted Answer

A) independent assortment 
B) random fertilization 
C) mitosis 
D) fragmentation of the chromosome 
E) crossing over 
A) independent assortment 
B) random fertilization 
C) mitosis 
D) fragmentation of the chromosome 
E) crossing over

Question 3

If a woman in her late forties wants to have a baby and seeks medical advice,she will be advised that she is at greater risk of having a baby with Down syndrome.

Accepted Answer

A) True 
 B)False

Question 4

What is an advantage of sexual reproduction over asexual reproduction?

Accepted Answer

A) genetic variability during an ecological disaster 
B) genetic variability when the environment is stable 
C) faster reproduction 
D) requirement of less energy 
E) simpler form of reproduction 
A) genetic variability during an ecological disaster 
B) genetic variability when the environment is stable 
C) faster reproduction 
D) requirement of less energy 
E) simpler form of reproduction

Question 5

After the completion of meiosis in humans,a diploid germ cell has produced cells with half the original chromosome number,generating __________ haploid nuclei.

Accepted Answer

A) 2 
B) 3 
C) 4 
D) 23 
E) 46 
A) 2 
B) 3 
C) 4 
D) 23 
E) 46

Question 6

The chromosomal designation for a human male is

Accepted Answer

A) XX. 
B) XO. 
C) XY. 
D) YY. 
E) XXX. 
A) XX. 
B) XO. 
C) XY. 
D) YY. 
E) XXX.

Question 7

If the gene for presence or absence of hair is located on the maternal chromosomes #3,then the same gene is located on the paternal chromosome #3.

Accepted Answer

A) True 
 B)False

Question 8

If a diploid sperm fertilizes a diploid egg it will produce a ____ zygote.

Accepted Answer

A) triploid 
B) tetraploid 
C) diploid 
D) haploid 
E) hexaploid 
A) triploid 
B) tetraploid 
C) diploid 
D) haploid 
E) hexaploid

Question 9

Identical twins result from a single fertilization to form a zygote,which then clones itself.

Accepted Answer

A) True 
 B)False

Question 10

If a diploid cell goes through meiosis it will generate

Accepted Answer

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

Question 11

What creates genetically-different offspring in both asexual and sexual reproduction?

Accepted Answer

A) mutations 
B) mitosis 
C) meiosis 
D) mutations and mitosis 
E) mitosis and meiosis 
A) mutations 
B) mitosis 
C) meiosis 
D) mutations and mitosis 
E) mitosis and meiosis

Question 12

If the allele for presence or absence of hair is located on the maternal chromosomes #3,then the same allele is located on the paternal chromosome #3.

Accepted Answer

A) True 
 B)False

Question 13

The chromosomal designation for a human female is

Accepted Answer

A) XYY. 
B) XY. 
C) YY. 
D) XX. 
E) None of the answers are correct. 
A) XYY. 
B) XY. 
C) YY. 
D) XX. 
E) None of the answers are correct.

Question 14

Mitosis occurs in germ cells throughout life.

Accepted Answer

A) True 
 B)False

Question 15

For a plant to produce diploid sperm and egg ____ must occur during _____.

Accepted Answer

A) nondisjunction,mitosis 
B) independent assortment,meiosis 
C) nondisjunction,meiosis 
D) independent assortment,mitosis 
E) independent assortment,fertilization 
A) nondisjunction,mitosis 
B) independent assortment,meiosis 
C) nondisjunction,meiosis 
D) independent assortment,mitosis 
E) independent assortment,fertilization

Question 16

In the section "Investigating Life: A New Species Is Born,but Who's the Daddy?",T.mirus would normally produce gametes with __ chromosomes.

Accepted Answer

A) 24 
B) 12 
C) 6 
D) 2 
E) 1 
A) 24 
B) 12 
C) 6 
D) 2 
E) 1

Question 17

If a haploid cell goes through meiosis it will generate

Accepted Answer

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

Question 18

In meiosis I,cytokinesis usually occurs after telophase I and produces

Accepted Answer

A) one diploid cell with sister chromatids still attached. 
B) two haploid cells with sister chromatids still attached. 
C) four haploid cells. 
D) two diploid cells. 
E) one haploid cell. 
A) one diploid cell with sister chromatids still attached. 
B) two haploid cells with sister chromatids still attached. 
C) four haploid cells. 
D) two diploid cells. 
E) one haploid cell.

Question 19

In the section "Investigating Life: A New Species Is Born,but Who's the Daddy?",T.miscellus has

Accepted Answer

A) arisen only once with T.pratensis being the female parent. 
B) arisen only once with T.dubius being the female parent. 
C) arisen more than once with T.pratensis and T.dubius both being the female parent. 
D) arisen more than once with T.pratensis being the female parent. 
E) arisen more than once with T.dubius being the female parent. 
A) arisen only once with T.pratensis being the female parent. 
B) arisen only once with T.dubius being the female parent. 
C) arisen more than once with T.pratensis and T.dubius both being the female parent. 
D) arisen more than once with T.pratensis being the female parent. 
E) arisen more than once with T.dubius being the female parent.

Question 20

In meiosis,chromosomes containing sister chromatids (not homologous chromosomes)align along the center of the cell during

Accepted Answer

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

Exam 9: Sexual Reproduction and Meiosis

Genes A and B are on the same chromosome.What gametes could an individual with the allele combination AABB produce?

Genes A and B are on the same chromosome.If a person has one chromosome with the alleles AB and a second chromosome with the alleles ab,how could they produce a gamete with a chromosome containing the alleles Ab or aB?

If a woman in her late forties wants to have a baby and seeks medical advice,she will be advised that she is at greater risk of having a baby with Down syndrome.

What is an advantage of sexual reproduction over asexual reproduction?

After the completion of meiosis in humans,a diploid germ cell has produced cells with half the original chromosome number,generating __________ haploid nuclei.

The chromosomal designation for a human male is

If the gene for presence or absence of hair is located on the maternal chromosomes #3,then the same gene is located on the paternal chromosome #3.

If a diploid sperm fertilizes a diploid egg it will produce a ____ zygote.

Identical twins result from a single fertilization to form a zygote,which then clones itself.

If a diploid cell goes through meiosis it will generate

What creates genetically-different offspring in both asexual and sexual reproduction?

If the allele for presence or absence of hair is located on the maternal chromosomes #3,then the same allele is located on the paternal chromosome #3.

The chromosomal designation for a human female is

Mitosis occurs in germ cells throughout life.

For a plant to produce diploid sperm and egg ____ must occur during _____.

In the section "Investigating Life: A New Species Is Born,but Who's the Daddy?",T.mirus would normally produce gametes with __ chromosomes.

If a haploid cell goes through meiosis it will generate

In meiosis I,cytokinesis usually occurs after telophase I and produces

In the section "Investigating Life: A New Species Is Born,but Who's the Daddy?",T.miscellus has

In meiosis,chromosomes containing sister chromatids (not homologous chromosomes)align along the center of the cell during

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