Question 1

A large chunk of DNA (around 20 kB)which is likely to be vertically inherited as a block is termed a ______________:

Accepted Answer

A) diplotype 
B) haplotype 
C) genotype 
D) SNP 
A) diplotype 
B) haplotype 
C) genotype 
D) SNP

Question 2

Which molecule provides a DNA molecule with most of its negative charge?

Accepted Answer

A) deoxyribose 
B) ribose 
C) phosphate group 
D) chlorine ion 
E) adenine 
A) deoxyribose 
B) ribose 
C) phosphate group 
D) chlorine ion 
E) adenine

Question 3

In a right-handed double helix, if one looks down the central axis of the molecule, _________.

Accepted Answer

A) each strand follows a counterclockwise path as it moves away from the observer 
B) each strand follows a clockwise path as it moves away from the observer 
C) each strand follows a rectangular path as it moves toward the observer 
D) each strand follows a clockwise path as it moves toward the observer 
E) one strand follows a clockwise path as it moves away from the observer, the other follows a clockwise path as it moves toward the observe 
A) each strand follows a counterclockwise path as it moves away from the observer 
B) each strand follows a clockwise path as it moves away from the observer 
C) each strand follows a rectangular path as it moves toward the observer 
D) each strand follows a clockwise path as it moves toward the observer 
E) one strand follows a clockwise path as it moves away from the observer, the other follows a clockwise path as it moves toward the observe

Question 4

The individual banding patterns on Drosophila chromosomes provided evidence for the validity of what phenomenon?

Accepted Answer

A) mitosis 
B) meiosis 
C) gene mapping 
D) translation 
E) respiration 
A) mitosis 
B) meiosis 
C) gene mapping 
D) translation 
E) respiration

Question 5

To what does avidin directly bind with high affinity?

Accepted Answer

A) RNA 
B) DNA 
C) fish 
D) biotin 
E) centromeres 
A) RNA 
B) DNA 
C) fish 
D) biotin 
E) centromeres

Question 6

Which model organisms provided valuable data in early studies of chromosomal inheritance? (Select all correct choices)

Accepted Answer

A) humans 
B) sea urchins 
C) laboratory mice 
D) roundworms such as Ascaris 
A) humans 
B) sea urchins 
C) laboratory mice 
D) roundworms such as Ascaris

Question 7

________ plays a key role in replicating DNA at the ends of chromosomes.

Accepted Answer

A) PolyA polymerase 
B) DNA polymerase 
C) Telomerase 
D) Protein kinase 
E) Phosphodiesterase 
A) PolyA polymerase 
B) DNA polymerase 
C) Telomerase 
D) Protein kinase 
E) Phosphodiesterase

Question 8

DNA sequences in bacteria that move from one place in the genome to another are called ________.

Accepted Answer

A) movers 
B) jumpons 
C) transposons 
D) transpodons 
E) jumposons 
A) movers 
B) jumpons 
C) transposons 
D) transpodons 
E) jumposons

Question 9

Which of the following is an RNA nucleoside?

Accepted Answer

A) a phosphate group, adenine and ribose 
B) a phosphate group, guanine and deoxyribose 
C) cytosine and ribose 
D) thymine and ribose 
E) a phosphate group and adenine 
A) a phosphate group, adenine and ribose 
B) a phosphate group, guanine and deoxyribose 
C) cytosine and ribose 
D) thymine and ribose 
E) a phosphate group and adenine

Question 10

Different versions of a gene are called _________.

Accepted Answer

A) heterologues 
B) homologues 
C) allogues 
D) alleles 
E) mutoids 
A) heterologues 
B) homologues 
C) allogues 
D) alleles 
E) mutoids

Question 11

Which type of gene or DNA sequence would you predict to contribute most significantly to the phenomenon of epistasis?

Accepted Answer

A) a gene encoding a single enzyme 
B) a gene encoding a neurotransmitter 
C) a gene encoding a transcription factor 
D) a noncoding SNP region 
A) a gene encoding a single enzyme 
B) a gene encoding a neurotransmitter 
C) a gene encoding a transcription factor 
D) a noncoding SNP region

Question 12

Who was the first scientist to propose that meiosis included a reduction division?

Accepted Answer

A) Edouard van Beneden 
B) Theodore Boveri 
C) Gregor Mendel 
D) August Weismann 
E) Walther Flemming 
A) Edouard van Beneden 
B) Theodore Boveri 
C) Gregor Mendel 
D) August Weismann 
E) Walther Flemming

Question 13

What abnormality is observed in daughter cells from an egg that has been fertilized by more than one sperm?

Accepted Answer

A) They have more cilia. 
B) They are smaller. 
C) They have variable numbers of chromosomes. 
D) They enter meiosis unexpectedly. 
E) They swell to three times their normal size. 
A) They have more cilia. 
B) They are smaller. 
C) They have variable numbers of chromosomes. 
D) They enter meiosis unexpectedly. 
E) They swell to three times their normal size.

Question 14

Which of the following can lead to an increase or decrease in the number of chromosomes over time and can thus provide a clear visual footprint of the evolutionary process? (Select all correct choices)

Accepted Answer

A) a simple loss of chromosomes during a mitotic event 
B) complete fragmentation of a chromosome 
C) the splitting of a chromosome 
D) the fusion of two chromosomes into one chromosome 
A) a simple loss of chromosomes during a mitotic event 
B) complete fragmentation of a chromosome 
C) the splitting of a chromosome 
D) the fusion of two chromosomes into one chromosome

Question 15

Why is the AMY1 gene more prevalent in humans than in chimpanzees and more prevalent in some human populations than others? (Select all correct choices)

Accepted Answer

A) Chimps have to digest forms of starch different from those digested by humans. 
B) Chimps have less starch in their diets than humans and therefore need lower levels of amylase. 
C) Some human populations have more starch in their diets than others. 
D) The AMY1 gene is directly involved with the ability to speak. 
A) Chimps have to digest forms of starch different from those digested by humans. 
B) Chimps have less starch in their diets than humans and therefore need lower levels of amylase. 
C) Some human populations have more starch in their diets than others. 
D) The AMY1 gene is directly involved with the ability to speak.

Question 16

The inheritable information encoded in DNA resides in ________.

Accepted Answer

A) phosphates in the backbone 
B) sugars in the backbone 
C) the DNA base sequence 
D) the sugars and phosphate groups together 
E) the phosphodiester linkages 
A) phosphates in the backbone 
B) sugars in the backbone 
C) the DNA base sequence 
D) the sugars and phosphate groups together 
E) the phosphodiester linkages

Question 17

_______ is thought to be derived from a reverse transcriptase encoded by an ancient retrotransposon.

Accepted Answer

A) Phosphatase 
B) Esterase 
C) Telomerase 
D) Protein kinase 
E) Phosphodiesterase 
A) Phosphatase 
B) Esterase 
C) Telomerase 
D) Protein kinase 
E) Phosphodiesterase

Question 18

Why would changes in the genes for transcription factors be expected to generate major phenotypic differences?

Accepted Answer

A) They are very highly expressed genes. 
B) They can affect the expression of large numbers of other genes. 
C) They can affect the expression of relatively few other genes. 
D) Their gene products normally denature more rapidly than other gene products. 
E) Their gene products are remarkably stable. 
A) They are very highly expressed genes. 
B) They can affect the expression of large numbers of other genes. 
C) They can affect the expression of relatively few other genes. 
D) Their gene products normally denature more rapidly than other gene products. 
E) Their gene products are remarkably stable.

Question 19

An area of biological study that focuses on the ways that proteins work together as complex networks rather than as individual actors is called __________.

Accepted Answer

A) systems biology 
B) complex biology 
C) systematics 
D) complexity 
E) networkonics 
A) systems biology 
B) complex biology 
C) systematics 
D) complexity 
E) networkonics

Question 20

The genetic rearrangement that Barbara McClintock discovered is called _________ and the mobile genetic elements she discovered are called ________.

Accepted Answer

A) transposition, transposable elements 
B) transposable elements, transposition 
C) transference, transferable elements 
D) mutations, mutable elements 
E) transposition, transposables 
A) transposition, transposable elements 
B) transposable elements, transposition 
C) transference, transferable elements 
D) mutations, mutable elements 
E) transposition, transposables

A large chunk of DNA (around 20 kB)which is likely to be vertically inherited as a block is termed a ______________:

Which molecule provides a DNA molecule with most of its negative charge?

In a right-handed double helix, if one looks down the central axis of the molecule, _________.

The individual banding patterns on Drosophila chromosomes provided evidence for the validity of what phenomenon?

To what does avidin directly bind with high affinity?

Which model organisms provided valuable data in early studies of chromosomal inheritance? (Select all correct choices)

________ plays a key role in replicating DNA at the ends of chromosomes.

DNA sequences in bacteria that move from one place in the genome to another are called ________.

Which of the following is an RNA nucleoside?

Different versions of a gene are called _________.

Which type of gene or DNA sequence would you predict to contribute most significantly to the phenomenon of epistasis?

Who was the first scientist to propose that meiosis included a reduction division?

What abnormality is observed in daughter cells from an egg that has been fertilized by more than one sperm?

Which of the following can lead to an increase or decrease in the number of chromosomes over time and can thus provide a clear visual footprint of the evolutionary process? (Select all correct choices)

Why is the AMY1 gene more prevalent in humans than in chimpanzees and more prevalent in some human populations than others? (Select all correct choices)

The inheritable information encoded in DNA resides in ________.

_______ is thought to be derived from a reverse transcriptase encoded by an ancient retrotransposon.

Why would changes in the genes for transcription factors be expected to generate major phenotypic differences?

An area of biological study that focuses on the ways that proteins work together as complex networks rather than as individual actors is called __________.

The genetic rearrangement that Barbara McClintock discovered is called _ and the mobile genetic elements she discovered are called .

Introduction to the Study of Cell and Molecular Biology

The Chemical Basis of Life

Bioenergetics, Enzymes and Metabolism

The Structure and Function of the Plasma Membrane

Aerobic Respiration and the Mitochondrion

Photosynthesis and the Chloroplast

Interactions Between Cells and Their Environment

Cytoplasmic Membrane Systems: Structure, Function, and Membrane Trafficking

The Cytoskeleton and Cell Motility

Gene Expression: From Transcription to Translation

Control of Gene Expression

Dna Replication and Repair

Cellular Reproduction

Cell Signaling and Signal Transduction: Communication Between Cells

Cancer

The Immune Response

Techniques in Cell and Molecular Biology

Filters

Exam 10: The Nature of the Gene and the Genome

A large chunk of DNA (around 20 kB)which is likely to be vertically inherited as a block is termed a ______________:

Which molecule provides a DNA molecule with most of its negative charge?

In a right-handed double helix, if one looks down the central axis of the molecule, _________.

The individual banding patterns on Drosophila chromosomes provided evidence for the validity of what phenomenon?

To what does avidin directly bind with high affinity?

Which model organisms provided valuable data in early studies of chromosomal inheritance? (Select all correct choices)

________ plays a key role in replicating DNA at the ends of chromosomes.

DNA sequences in bacteria that move from one place in the genome to another are called ________.

Which of the following is an RNA nucleoside?

Different versions of a gene are called _________.

Which type of gene or DNA sequence would you predict to contribute most significantly to the phenomenon of epistasis?

Who was the first scientist to propose that meiosis included a reduction division?

What abnormality is observed in daughter cells from an egg that has been fertilized by more than one sperm?

Which of the following can lead to an increase or decrease in the number of chromosomes over time and can thus provide a clear visual footprint of the evolutionary process? (Select all correct choices)

Why is the AMY1 gene more prevalent in humans than in chimpanzees and more prevalent in some human populations than others? (Select all correct choices)

The inheritable information encoded in DNA resides in ________.

_______ is thought to be derived from a reverse transcriptase encoded by an ancient retrotransposon.

Why would changes in the genes for transcription factors be expected to generate major phenotypic differences?

An area of biological study that focuses on the ways that proteins work together as complex networks rather than as individual actors is called __________.

The genetic rearrangement that Barbara McClintock discovered is called _________ and the mobile genetic elements she discovered are called ________.

Introduction to the Study of Cell and Molecular Biology

The Chemical Basis of Life

Bioenergetics, Enzymes and Metabolism

The Structure and Function of the Plasma Membrane

Aerobic Respiration and the Mitochondrion

Photosynthesis and the Chloroplast

Interactions Between Cells and Their Environment

Cytoplasmic Membrane Systems: Structure, Function, and Membrane Trafficking

The Cytoskeleton and Cell Motility

Gene Expression: From Transcription to Translation

Control of Gene Expression

Dna Replication and Repair

Cellular Reproduction

Cell Signaling and Signal Transduction: Communication Between Cells

Cancer

The Immune Response

Techniques in Cell and Molecular Biology

Filters

The genetic rearrangement that Barbara McClintock discovered is called _ and the mobile genetic elements she discovered are called .