Question 1

Which pattern of diploid and haploid phases reflects the life cycle of plants?

Accepted Answer

A) alternation between haploid and diploid generations 
B) one haploid generation followed by two diploid generations 
C) two haploid generations followed by a diploid generation 
D) a single generation that limits the haploid state to gametes, while the rest of the organism is diploid 
A) alternation between haploid and diploid generations 
B) one haploid generation followed by two diploid generations 
C) two haploid generations followed by a diploid generation 
D) a single generation that limits the haploid state to gametes, while the rest of the organism is diploid

Question 2

Which phrase best describes sister chromatids?

Accepted Answer

A) two chromosomes having an identical DNA sequence 
B) two chromosomes having different alleles of the same genes arranged in a different order 
C) two chromosomes having the same alleles of the same genes in a different order 
D) two chromosomes having the same genes in the same order, but having different alleles 
A) two chromosomes having an identical DNA sequence 
B) two chromosomes having different alleles of the same genes arranged in a different order 
C) two chromosomes having the same alleles of the same genes in a different order 
D) two chromosomes having the same genes in the same order, but having different alleles

Question 3

Match each term with its correct definition.
-somatic cells

Accepted Answer

A) cell division that is modified to generate haploid cells 
B) haploid products of meiosis 
C) matching of homologous pairs of chromosomes during prophase I 
D) term used to describe cells having two sets of chromosomes 
E) diploid body cells that do not undergo meiosis
F)term used to describe cells having a single set of chromosomes
G)life strategy that involves fusion of haploid gametes from two source organisms to form a diploid cell
H)another name for cross-over sites
I)variant of a particular gene having a slightly different DNA sequence than another variant of the same gene
J)diploid product of gamete fusion
K)process of gamete fusion 
A) cell division that is modified to generate haploid cells 
B) haploid products of meiosis 
C) matching of homologous pairs of chromosomes during prophase I 
D) term used to describe cells having two sets of chromosomes 
E) diploid body cells that do not undergo meiosis
F)term used to describe cells having a single set of chromosomes
G)life strategy that involves fusion of haploid gametes from two source organisms to form a diploid cell
H)another name for cross-over sites
I)variant of a particular gene having a slightly different DNA sequence than another variant of the same gene
J)diploid product of gamete fusion
K)process of gamete fusion

Question 4

Suppose that two strains of E. coli-strain a (bio- met- leu+ thr+ thi+) and strain b (bio+ met+ leu- thr- thi-)-conjugate. If the two strains are grown on minimal medium, what is the most likely genotype of their offspring?

Accepted Answer

A) bio+ met- leu- thr- thi+ 
B) bio+ met+ leu+ thr+ thi+ 
C) bio+ met+ leu- thr- thi+ 
D) bio- met- leu- thr- thi+ 
A) bio+ met- leu- thr- thi+ 
B) bio+ met+ leu+ thr+ thi+ 
C) bio+ met+ leu- thr- thi+ 
D) bio- met- leu- thr- thi+

Question 5

What would be the outcome, in genetic terms, of recombination between sister chromatids?

Accepted Answer

A) Genetic diversity is unaffected. 
B) Genetic diversity is decreased. 
C) Genetic diversity is increased. 
D) Nonhomologous chromatids are formed. 
A) Genetic diversity is unaffected. 
B) Genetic diversity is decreased. 
C) Genetic diversity is increased. 
D) Nonhomologous chromatids are formed.

Question 6

Match each term with its correct definition.
-meiosis

Accepted Answer

A) cell division that is modified to generate haploid cells 
B) haploid products of meiosis 
C) matching of homologous pairs of chromosomes during prophase I 
D) term used to describe cells having two sets of chromosomes 
E) diploid body cells that do not undergo meiosis
F)term used to describe cells having a single set of chromosomes
G)life strategy that involves fusion of haploid gametes from two source organisms to form a diploid cell
H)another name for cross-over sites
I)variant of a particular gene having a slightly different DNA sequence than another variant of the same gene
J)diploid product of gamete fusion
K)process of gamete fusion 
A) cell division that is modified to generate haploid cells 
B) haploid products of meiosis 
C) matching of homologous pairs of chromosomes during prophase I 
D) term used to describe cells having two sets of chromosomes 
E) diploid body cells that do not undergo meiosis
F)term used to describe cells having a single set of chromosomes
G)life strategy that involves fusion of haploid gametes from two source organisms to form a diploid cell
H)another name for cross-over sites
I)variant of a particular gene having a slightly different DNA sequence than another variant of the same gene
J)diploid product of gamete fusion
K)process of gamete fusion

Question 7

What sort of phage is bacteriophage lambda considered to be?

Accepted Answer

A) a virulent phage 
B) a plant phage 
C) an animal phage 
D) a temperate phage 
A) a virulent phage 
B) a plant phage 
C) an animal phage 
D) a temperate phage

Question 8

Match each term with its correct definition.
-transduction

Accepted Answer

A) movement of bacterial DNA from one cell to another inside a bacteriophage 
B) a virus 
C) particular segments of DNA that move from one place to another 
D) simplest TEs 
E) enzyme that catalyzes reactions to insert or remove TEs
F)DNA that has an inverted repeat sequence at each end
G)enzyme that uses an RNA template to make a DNA copy of the retrotransposon
H)transferring DNA using a virus 
A) movement of bacterial DNA from one cell to another inside a bacteriophage 
B) a virus 
C) particular segments of DNA that move from one place to another 
D) simplest TEs 
E) enzyme that catalyzes reactions to insert or remove TEs
F)DNA that has an inverted repeat sequence at each end
G)enzyme that uses an RNA template to make a DNA copy of the retrotransposon
H)transferring DNA using a virus

Question 9

Which sentence best describes what occurs during bacterial conjugation?

Accepted Answer

A) Cells exchange their entire genome. 
B) Cells contact each other using a sex pilus to obtain new alleles. 
C) Cells contact each other to exchange proteins. 
D) Cells disrupt each other. 
A) Cells exchange their entire genome. 
B) Cells contact each other using a sex pilus to obtain new alleles. 
C) Cells contact each other to exchange proteins. 
D) Cells disrupt each other.

Question 10

Match the events listed below to the following processes. A process may be used once, more than once, or not at all.
-Spindles are disassembled and replaced by new spindles.

Accepted Answer

A) prophase I 
B) prometaphase I 
C) metaphase I 
D) anaphase I 
E) telophase I
F)prophase II
G)prometaphase II
H)metaphase II
I)anaphase II
J)telophase II 
A) prophase I 
B) prometaphase I 
C) metaphase I 
D) anaphase I 
E) telophase I
F)prophase II
G)prometaphase II
H)metaphase II
I)anaphase II
J)telophase II

Question 11

During bacterial conjugation, bacterial DNA with different alleles get together. What is the name of the long tubular structure that bacteria use to obtain differing alleles?

Accepted Answer

A) the sex pilus 
B) the metabolic pilus 
C) the flagellum 
D) the asexual pilus 
A) the sex pilus 
B) the metabolic pilus 
C) the flagellum 
D) the asexual pilus

Question 12

Which pattern of diploid and haploid phases reflects the life cycle of animals?

Accepted Answer

A) alternation between haploid and diploid generations 
B) one haploid generation followed by two diploid generations 
C) two haploid generations followed by a diploid generation 
D) a single generation that limits the haploid state to gametes, while the rest of the organism is diploid 
A) alternation between haploid and diploid generations 
B) one haploid generation followed by two diploid generations 
C) two haploid generations followed by a diploid generation 
D) a single generation that limits the haploid state to gametes, while the rest of the organism is diploid

Question 13

Hfr cells can integrate the F factor and some genes into the bacterial chromosome. How do Hfr cells accomplish this?

Accepted Answer

A) through crossing-over 
B) through mitosis 
C) through meiosis 
D) through prophase 
A) through crossing-over 
B) through mitosis 
C) through meiosis 
D) through prophase

Question 14

Match each term with its correct definition.
-haploid

Accepted Answer

A) cell division that is modified to generate haploid cells 
B) haploid products of meiosis 
C) matching of homologous pairs of chromosomes during prophase I 
D) term used to describe cells having two sets of chromosomes 
E) diploid body cells that do not undergo meiosis
F)term used to describe cells having a single set of chromosomes
G)life strategy that involves fusion of haploid gametes from two source organisms to form a diploid cell
H)another name for cross-over sites
I)variant of a particular gene having a slightly different DNA sequence than another variant of the same gene
J)diploid product of gamete fusion
K)process of gamete fusion 
A) cell division that is modified to generate haploid cells 
B) haploid products of meiosis 
C) matching of homologous pairs of chromosomes during prophase I 
D) term used to describe cells having two sets of chromosomes 
E) diploid body cells that do not undergo meiosis
F)term used to describe cells having a single set of chromosomes
G)life strategy that involves fusion of haploid gametes from two source organisms to form a diploid cell
H)another name for cross-over sites
I)variant of a particular gene having a slightly different DNA sequence than another variant of the same gene
J)diploid product of gamete fusion
K)process of gamete fusion

Question 15

Which phrase describes how identical twins can result?

Accepted Answer

A) from the fusion of two paternal gametes with a single maternal gamete that then divides 
B) from a lack of chromosomal separation during meiosis, resulting in gametes that are diploid and do not need to be fertilized 
C) from the fusion of two sets of identical gametes 
D) from a division of a zygote into two separate cells that develop into two separate embryos 
A) from the fusion of two paternal gametes with a single maternal gamete that then divides 
B) from a lack of chromosomal separation during meiosis, resulting in gametes that are diploid and do not need to be fertilized 
C) from the fusion of two sets of identical gametes 
D) from a division of a zygote into two separate cells that develop into two separate embryos

Question 16

Match the events listed below to the following processes. A process may be used once, more than once, or not at all.
-Nuclear envelope reforms in all species.

Accepted Answer

A) prophase I 
B) prometaphase I 
C) metaphase I 
D) anaphase I 
E) telophase I
F)prophase II
G)prometaphase II
H)metaphase II
I)anaphase II
J)telophase II 
A) prophase I 
B) prometaphase I 
C) metaphase I 
D) anaphase I 
E) telophase I
F)prophase II
G)prometaphase II
H)metaphase II
I)anaphase II
J)telophase II

Question 17

Suppose that a researcher is looking for met- strains of E. coli. She compares two plates. One plate has colonies growing on complete media. The other plate has colonies growing on methionine-deficient media. How can the researcher determine which colonies are met-?

Accepted Answer

A) by replica plating the plate with minimal media onto one with complete media 
B) by streaking all individual colonies on minimal media 
C) by replica plating the plate with complete media onto one with minimal media 
D) by growing the bacteria in broth media that is complete 
A) by replica plating the plate with minimal media onto one with complete media 
B) by streaking all individual colonies on minimal media 
C) by replica plating the plate with complete media onto one with minimal media 
D) by growing the bacteria in broth media that is complete

Question 18

Match the events listed below to the following processes. A process may be used once, more than once, or not at all.
-Sister chromatids are separated.

Accepted Answer

A) prophase I 
B) prometaphase I 
C) metaphase I 
D) anaphase I 
E) telophase I
F)prophase II
G)prometaphase II
H)metaphase II
I)anaphase II
J)telophase II 
A) prophase I 
B) prometaphase I 
C) metaphase I 
D) anaphase I 
E) telophase I
F)prophase II
G)prometaphase II
H)metaphase II
I)anaphase II
J)telophase II

Question 19

Which term refers to media that contain water, organic carbon sources, and salts, but no extra nutritional components?

Accepted Answer

A) nutritious media 
B) complete media 
C) minimal media 
D) agar media 
A) nutritious media 
B) complete media 
C) minimal media 
D) agar media

Question 20

Explain the purpose of meiosis.

Accepted Answer

Meiosis is a process that reduces the ch

Exam 9: Genetic Recombination

Which pattern of diploid and haploid phases reflects the life cycle of plants?

Which phrase best describes sister chromatids?

Match each term with its correct definition. -somatic cells

Suppose that two strains of E. coli-strain a (bio- met- leu+ thr+ thi+) and strain b (bio+ met+ leu- thr- thi-)-conjugate. If the two strains are grown on minimal medium, what is the most likely genotype of their offspring?

What would be the outcome, in genetic terms, of recombination between sister chromatids?

Match each term with its correct definition. -meiosis

What sort of phage is bacteriophage lambda considered to be?

Match each term with its correct definition. -transduction

Which sentence best describes what occurs during bacterial conjugation?

Match the events listed below to the following processes. A process may be used once, more than once, or not at all. -Spindles are disassembled and replaced by new spindles.

During bacterial conjugation, bacterial DNA with different alleles get together. What is the name of the long tubular structure that bacteria use to obtain differing alleles?

Which pattern of diploid and haploid phases reflects the life cycle of animals?

Hfr cells can integrate the F factor and some genes into the bacterial chromosome. How do Hfr cells accomplish this?

Match each term with its correct definition. -haploid

Which phrase describes how identical twins can result?

Match the events listed below to the following processes. A process may be used once, more than once, or not at all. -Nuclear envelope reforms in all species.

Suppose that a researcher is looking for met- strains of E. coli. She compares two plates. One plate has colonies growing on complete media. The other plate has colonies growing on methionine-deficient media. How can the researcher determine which colonies are met-?

Match the events listed below to the following processes. A process may be used once, more than once, or not at all. -Sister chromatids are separated.

Which term refers to media that contain water, organic carbon sources, and salts, but no extra nutritional components?

Explain the purpose of meiosis.

Light and Life

The Cell: an Overview

Defining Life and Its Origins

Energy and Enzymes

Cell Membranes and Signalling

Cellular Respiration

Photosynthesis

Cell Cycles

Mendel, Genes, and Inheritance

Genes, Chromosomes, and Human Genetics

Dna Structure, Replication, and Organization

Gene Structure and Expression

Control of Gene Expression

Dna Technologies

Genomes and Proteomes

Evolution: the Development of the Theory

Microevolution: Changes Within Populations

Species and Macroevolution

Understanding the History of Life on Earth

Humans and Evolution

Bacteria and Archaea

Viruses, Viroids, and Prions: Infectious Biological Particles

Protists

Fungi

Plants

Diversity of Animals 1: Sponges, Radiata, Platyhelminthes, and Protostomes

Diversity of Animals 2: Deuterostomes: Vertebrates and Their Closest Relatives

Population Ecology

Population Interactions and Community Ecology

Ecosystems

Conservation of Biodiversity

Putting Selection to Work

Organization of the Plant Body

Transport in Plants

Reproduction and Development in Flowering Plants

Plant Nutrition

Plant Signals and Responses to the Environment

Introduction to Animal Organization and Physiology

Transport in Animals: the Circulatory System

Reproduction in Animals

Animal Development

Control of Animal Processes: Neural Control

Control of Animal Processes: Neural Control

Control of Animal Processes: Neural Integration

Muscles, Skeletons, and Body Movements

Animal Behaviour

Animal Nutrition

Gas Exchange: the Respiratory System

Regulating the Internal Environment

Defences Against Disease

Conservation and Evolutionary Physiology

Filters

Suppose that two strains of E. coli-strain a (bio^- met^- leu⁺ thr⁺ thi⁺) and strain b (bio⁺ met⁺ leu^- thr^- thi^-)-conjugate. If the two strains are grown on minimal medium, what is the most likely genotype of their offspring?

Suppose that a researcher is looking for met^- strains of E. coli. She compares two plates. One plate has colonies growing on complete media. The other plate has colonies growing on methionine-deficient media. How can the researcher determine which colonies are met^-?