Question 1

Meiosis produces ____. ​

Accepted Answer

A) four haploid cells 
B) two diploid cells ​ 
C) two diploid cells and two haploid cells ​ 
D) four diploid cells ​ 
E) one haploid and three diploid cells ​ 
A) four haploid cells 
B) two diploid cells ​ 
C) two diploid cells and two haploid cells ​ 
D) four diploid cells ​ 
E) one haploid and three diploid cells ​ A

Question 2

If an organism has the same life strategy as a maple tree, the synaptonemal complex will be observed ____. ​

Accepted Answer

A) only in alternating generations 
B) in each generation ​ 
C) only in a unicellular haploid phase ​ 
D) only in a multicellular haploid phase ​ 
E) only in gametophytes ​ 
A) only in alternating generations 
B) in each generation ​ 
C) only in a unicellular haploid phase ​ 
D) only in a multicellular haploid phase ​ 
E) only in gametophytes ​ A

Question 3

When two pairs of homologous chromosomes join for crossing-over, the complex is called a ____. ​

Accepted Answer

A) kinetochore 
B) centromere ​ 
C) sister chromatid ​ 
D) tetrad ​ 
E) chiasmata ​ 
A) kinetochore 
B) centromere ​ 
C) sister chromatid ​ 
D) tetrad ​ 
E) chiasmata ​ D

Question 4

Chiasmata form during which phase of meiosis? ​

Accepted Answer

A) prophase I 
B) metaphase I ​ 
C) telophase I ​ 
D) prophase II 
E) metaphase II 
A) prophase I 
B) metaphase I ​ 
C) telophase I ​ 
D) prophase II 
E) metaphase II

Question 5

During prophase I of meiosis, each chromosome consists of ____. ​

Accepted Answer

A) one single-stranded DNA molecule 
B) two sister chromatids ​ 
C) one sister chromatid ​ 
D) four sister chromatids ​ 
E) one double-stranded DNA molecule ​ 
A) one single-stranded DNA molecule 
B) two sister chromatids ​ 
C) one sister chromatid ​ 
D) four sister chromatids ​ 
E) one double-stranded DNA molecule ​

Question 6

Which statement describes a difference between human male and female somatic cells? ​

Accepted Answer

A) Male somatic cells contain only paternal chromosomes; female somatic cells contain only maternal chromosomes. 
B) Male somatic cells contain 46 chromosomes; female somatic cells contain 44 chromosomes. ​ 
C) Male somatic cells contain 44 chromosomes; female somatic cells contain 46 chromosomes. ​ 
D) Male somatic cells contain two X chromosomes; female somatic cells contain an X chromosome and a Y chromosome. ​ 
E) Male somatic cells contain 22 pairs of homologous chromosomes; female somatic cells contain 23 pairs of homologous chromosomes. ​ 
A) Male somatic cells contain only paternal chromosomes; female somatic cells contain only maternal chromosomes. 
B) Male somatic cells contain 46 chromosomes; female somatic cells contain 44 chromosomes. ​ 
C) Male somatic cells contain 44 chromosomes; female somatic cells contain 46 chromosomes. ​ 
D) Male somatic cells contain two X chromosomes; female somatic cells contain an X chromosome and a Y chromosome. ​ 
E) Male somatic cells contain 22 pairs of homologous chromosomes; female somatic cells contain 23 pairs of homologous chromosomes. ​

Question 7

Koopman's research on mouse meiosis revealed ____. ​

Accepted Answer

A) a meiosis promoting gene 
B) a meiosis inhibiting gene promotes retinoic acid production ​ 
C) that retinoic acid prevents meiosis ​ 
D) Cyp26b1 gene expression in embryonic testes but not ovaries ​ 
E) germ cells form later in male mice that lack the Cyp25b1 gene ​ 
A) a meiosis promoting gene 
B) a meiosis inhibiting gene promotes retinoic acid production ​ 
C) that retinoic acid prevents meiosis ​ 
D) Cyp26b1 gene expression in embryonic testes but not ovaries ​ 
E) germ cells form later in male mice that lack the Cyp25b1 gene ​

Question 8

Which statement most accurately describes plant gametes? ​

Accepted Answer

A) Gametophytes produced by mitotic divisions of spores can mature to gametes. 
B) Gametes are formed directly from meiosis. ​ 
C) Haploid spores produced by meiosis are mature gametes. ​ 
D) Gametophytes produced directly from meiosis are mature gametes. ​ 
E) Sporophytes undergo meiosis to produce mature gametes called spores. ​ 
A) Gametophytes produced by mitotic divisions of spores can mature to gametes. 
B) Gametes are formed directly from meiosis. ​ 
C) Haploid spores produced by meiosis are mature gametes. ​ 
D) Gametophytes produced directly from meiosis are mature gametes. ​ 
E) Sporophytes undergo meiosis to produce mature gametes called spores. ​

Question 9

Which structure holds homologous chromosomes tightly together and supports them as they undergo recombination? ​

Accepted Answer

A) kinetochore 
B) centromere ​ 
C) microtubules ​ 
D) spermatozoa ​ 
E) synaptonemal complex ​ 
A) kinetochore 
B) centromere ​ 
C) microtubules ​ 
D) spermatozoa ​ 
E) synaptonemal complex ​

Question 10

Match between columns
                        Premises: chiasmata

Accepted Answer

The Answer of A term used to describe cells having is...

Question 11

Match between columns
                        Premises: sexual reproduction

Accepted Answer

The Answer of The diploid product of gamete fusion  is...

Question 12

How is sexual reproduction facilitated in flowering plants? ​

Accepted Answer

A) pollen reaches the ovule by traveling through the flower petal 
B) the male gametophyte is found in the flower while the female gametophyte is released as pollen ​ 
C) the female gametophyte is found in the flower while the male gametophyte is released as pollen ​ 
D) pollen is only able to fertilize plants of different species to ensure genetic diversity ​ 
E) the ovule is carried by birds to other plants for reproduction to occur with the male gametophyte ​ 
A) pollen reaches the ovule by traveling through the flower petal 
B) the male gametophyte is found in the flower while the female gametophyte is released as pollen ​ 
C) the female gametophyte is found in the flower while the male gametophyte is released as pollen ​ 
D) pollen is only able to fertilize plants of different species to ensure genetic diversity ​ 
E) the ovule is carried by birds to other plants for reproduction to occur with the male gametophyte ​

Question 13

What is the main difference between the haploid and diploid phases of animal and plant life cycles?

Accepted Answer

In animals, the diploid phase

Question 14

Which statement describes chromosomes? ​

Accepted Answer

A) Chromosomes are always spread out as chromatin. 
B) Chromosomes are always condensed. ​ 
C) Homologous chromosomes have the same genes but can have different alleles. 
D) Homologous chromosomes always have the same alleles. 
E) Chromosomes always consist of two sister chromatids. 
A) Chromosomes are always spread out as chromatin. 
B) Chromosomes are always condensed. ​ 
C) Homologous chromosomes have the same genes but can have different alleles. 
D) Homologous chromosomes always have the same alleles. 
E) Chromosomes always consist of two sister chromatids.

Question 15

Which statement correctly describes the X and/or Y chromosomes?

Accepted Answer

A) The X and Y chromosomes are completely homologous. 
B) The Y chromosome determines the sex of the individual. ​ 
C) The Y chromosome is larger than the X chromosome. ​ 
D) The Y chromosome is found in both males and females. ​ 
E) The X chromosome only comes from the father. ​ 
A) The X and Y chromosomes are completely homologous. 
B) The Y chromosome determines the sex of the individual. ​ 
C) The Y chromosome is larger than the X chromosome. ​ 
D) The Y chromosome is found in both males and females. ​ 
E) The X chromosome only comes from the father. ​

Question 16

Which stage of meiosis is characterized by DNA condensation into compact chromosomes? ​

Accepted Answer

A) prophase II 
B) anaphase I ​ 
C) prophase I ​ 
D) prometaphase I ​ 
E) metaphase I ​ 
A) prophase II 
B) anaphase I ​ 
C) prophase I ​ 
D) prometaphase I ​ 
E) metaphase I ​

Question 17

If both chromatids of a sister-chromatid pair are found in one daughter cell, what has likely occurred? ​

Accepted Answer

A) improper replication of DNA 
B) failure of maternal and paternal chromosomes to separate ​ 
C) nondisjunction during meiosis I ​ 
D) nondisjunction during meiosis II ​ 
E) an error during crossing-over ​ 
A) improper replication of DNA 
B) failure of maternal and paternal chromosomes to separate ​ 
C) nondisjunction during meiosis I ​ 
D) nondisjunction during meiosis II ​ 
E) an error during crossing-over ​

Question 18

Match between columns
                        Premises: allele

Accepted Answer

The Answer of Another name for crossover sites  and is...

Question 19

Crossing-over during meiosis ____.

Accepted Answer

A) holds homologous pairs of chromosomes together 
B) produces chromosomes consisting of two identical sister chromatids ​ 
C) produces daughter nuclei with too much or too little genetic material ​ 
D) creates chromosomes containing both paternal and maternal genes ​ 
E) ensures that the developing zygote receives cytoplasm from one of the parents ​ 
A) holds homologous pairs of chromosomes together 
B) produces chromosomes consisting of two identical sister chromatids ​ 
C) produces daughter nuclei with too much or too little genetic material ​ 
D) creates chromosomes containing both paternal and maternal genes ​ 
E) ensures that the developing zygote receives cytoplasm from one of the parents ​

Question 20

Sexual reproduction has an advantage over asexual reproduction by ____. ​

Accepted Answer

A) requiring an interaction between two individuals 
B) creating more genetic diversity ​ 
C) ensuring a greater number of progeny ​ 
D) keeping the number of chromosomes constant more effectively ​ 
E) allowing for the production and use of gametes ​ 
A) requiring an interaction between two individuals 
B) creating more genetic diversity ​ 
C) ensuring a greater number of progeny ​ 
D) keeping the number of chromosomes constant more effectively ​ 
E) allowing for the production and use of gametes ​

Exam 11: Meiosis: the Cellular Basis of Sexual Reproduction

Meiosis produces ____. ​

If an organism has the same life strategy as a maple tree, the synaptonemal complex will be observed ____. ​

When two pairs of homologous chromosomes join for crossing-over, the complex is called a ____. ​

Chiasmata form during which phase of meiosis? ​

During prophase I of meiosis, each chromosome consists of ____. ​

Which statement describes a difference between human male and female somatic cells? ​

Koopman's research on mouse meiosis revealed ____. ​

Which statement most accurately describes plant gametes? ​

Which structure holds homologous chromosomes tightly together and supports them as they undergo recombination? ​

How is sexual reproduction facilitated in flowering plants? ​

What is the main difference between the haploid and diploid phases of animal and plant life cycles?

Which statement describes chromosomes? ​

Which statement correctly describes the X and/or Y chromosomes?

Which stage of meiosis is characterized by DNA condensation into compact chromosomes? ​

If both chromatids of a sister-chromatid pair are found in one daughter cell, what has likely occurred? ​

Crossing-over during meiosis ____.

Sexual reproduction has an advantage over asexual reproduction by ____. ​

Introduction to Biological Concepts and Research

Life, Chemistry, and Water

Biological Molecules: the Carbon Compounds of Life

Cells

Membranes and Transport

Energy, Enzymes, and Biological Reactions

Cellular Respiration: Harvesting Chemical Energy

Photosynthesis

Cell Communication

Cell Division and Mitosis

Mendel, Genes, and Inheritance

Genes, Chromosomes, and Human Genetics

DNA Structure, Replication, and Organization

From DNA to Protein

Regulation of Gene Expression

Bacterial and Viral Genetics

Dna Technologies: Making and Using Genetically Altered Organisms, and Other Applications

Genomes and Proteomes

The Development of Evolutionary Thought

Microevolution: Genetic Changes Within Populations

Speciation

Paleobiology and Macroevolution

Systematic Biology: Phylogeny and Classification

The Origin of Life

Prokaryotes and Viruses

Protists

Seedless Plants

Seed Plants

Fungi

Animal Phylogeny, Acoelomates, and Protostomes

Deuterostomes: Vertebrates and Their Closest Relatives

The Plant Body

Transport in Plants

Plant Nutrition

Reproduction and Development in Flowering Plants

Plant Signals and Responses to the Environment

Introduction to Animal Organization and Physiology

Information Flow and the Neuron

Nervous Systems

Sensory Systems

The Endocrine System

Muscles, Bones, and Body Movements

The Circulatory System

Defenses Against Disease

Gas Exchange: the Respiratory System

Animal Nutrition

Regulating the Internal Environment

Animal Reproduction

Animal Development

Ecology and the Biosphere

Population Ecology

Population Interactions and Community Ecology

Ecosystems

Biodiversity and Conservation Biology

Animal Behavior

Filters

Meiosis produces ____.

If an organism has the same life strategy as a maple tree, the synaptonemal complex will be observed ____.

When two pairs of homologous chromosomes join for crossing-over, the complex is called a ____.

Chiasmata form during which phase of meiosis?

During prophase I of meiosis, each chromosome consists of ____.

Which statement describes a difference between human male and female somatic cells?

Koopman's research on mouse meiosis revealed ____.

Which statement most accurately describes plant gametes?

Which structure holds homologous chromosomes tightly together and supports them as they undergo recombination?

How is sexual reproduction facilitated in flowering plants?

Which statement describes chromosomes?

Which stage of meiosis is characterized by DNA condensation into compact chromosomes?

If both chromatids of a sister-chromatid pair are found in one daughter cell, what has likely occurred?

Sexual reproduction has an advantage over asexual reproduction by ____.