Question 1

If the adenine (A) content of DNA is 33 percent,what is its guanine (G) content?

Accepted Answer

A) 33 percent 
B) 17 percent 
C) 50 percent 
D) 22 percent 
A) 33 percent 
B) 17 percent 
C) 50 percent 
D) 22 percent

Question 2

Plasmids are

Accepted Answer

A) linear pieces of DNA. 
B) linear pieces of RNA. 
C) circular pieces of DNA. 
D) circular pieces of RNA. 
A) linear pieces of DNA. 
B) linear pieces of RNA. 
C) circular pieces of DNA. 
D) circular pieces of RNA.

Question 3

Identify the nucleotide sequence that is complementary to the following DNA sequence TACGGCTTAAG

Accepted Answer

A) TAGCCTTAAC 
B) ATGGGGAATTC 
C) TTCDDGTTTTC 
D) ATGCCGAATTC 
A) TAGCCTTAAC 
B) ATGGGGAATTC 
C) TTCDDGTTTTC 
D) ATGCCGAATTC

Question 4

The DNA materials contained in a(n) _________codes for the production of a protein.

Accepted Answer

A) nucleotide 
B) enzyme 
C) codon 
D) gene 
A) nucleotide 
B) enzyme 
C) codon 
D) gene

Question 5

The primary structure of a protein is the

Accepted Answer

A) overall shape or conformation of the molecule. 
B) conformation of amino acids in a segment of polypeptide. 
C) identity and sequence of amino acids present. 
D) association of one protein chain with another. 
A) overall shape or conformation of the molecule. 
B) conformation of amino acids in a segment of polypeptide. 
C) identity and sequence of amino acids present. 
D) association of one protein chain with another.

Question 6

Sickle cell anemia I.is caused by mutation in the human gene that codes for a protein expressed in the red blood cells.
II)is a genetic disease,inheritable from one's parents.
III)can cause red blood cells to become sickle shaped.
IV)can clog organs,reducing their blood supplies.

Accepted Answer

A) I and II only 
B) I and III only 
C) I,II,and III only 
D) I,II,III,and IV 
A) I and II only 
B) I and III only 
C) I,II,and III only 
D) I,II,III,and IV

Question 7

Deoxyribose is the ________ in DNA.

Accepted Answer

A) ribonucleotide 
B) deoxyribonucleotide 
C) sugar 
D) phosphate 
A) ribonucleotide 
B) deoxyribonucleotide 
C) sugar 
D) phosphate

Question 8

The tertiary structure of a protein is the

Accepted Answer

A) overall shape or conformation of the molecule. 
B) conformation of amino acids in a segment of polypeptide. 
C) identity and sequence of amino acids present. 
D) association of one protein chain with another. 
A) overall shape or conformation of the molecule. 
B) conformation of amino acids in a segment of polypeptide. 
C) identity and sequence of amino acids present. 
D) association of one protein chain with another.

Question 9

If the thymine (T) content of DNA is 29 percent,what is the content of guanine (G)?

Accepted Answer

A) 21 percent 
B) 29 percent 
C) 58 percent 
D) 71 percent 
A) 21 percent 
B) 29 percent 
C) 58 percent 
D) 71 percent

Question 10

What functional groups are present in all amino acids?

Accepted Answer

A) Alkyl group and carboxylic acid 
B) Alkyl group and amino group 
C) Alcohol and carboxylic acid 
D) Alcohol and amino group 
A) Alkyl group and carboxylic acid 
B) Alkyl group and amino group 
C) Alcohol and carboxylic acid 
D) Alcohol and amino group

Question 11

What forces hold the two strands of DNA together?

Accepted Answer

A) Covalent bonds 
B) Ionic bonds 
C) Salt bridges 
D) Hydrogen bonds 
A) Covalent bonds 
B) Ionic bonds 
C) Salt bridges 
D) Hydrogen bonds

Question 12

Plants are easier to genetically engineer than bacteria due to their simpler cellular structure.

Accepted Answer

A) True 
 B)False

Question 13

Insulin derived from animals was used to treat diabetes cases until genetic modification techniques arose in the late 1970s.Which of the following was a drawback of nonhuman insulin?

Accepted Answer

A) Impurities in the insulin led to allergic reactions in some human patients 
B) Animal-derived insulin carried other diseases 
C) Animal insulin was expensive to obtain 
D) Small chemical differences between animal and human insulin led to allergic reactions in some human patients 
A) Impurities in the insulin led to allergic reactions in some human patients 
B) Animal-derived insulin carried other diseases 
C) Animal insulin was expensive to obtain 
D) Small chemical differences between animal and human insulin led to allergic reactions in some human patients

Question 14

Chose the analogy below that best matches. nucleotide : DNA

Accepted Answer

A) Protein : enzyme 
B) Amino acid : protein 
C) Codon : amino acid 
D) Ribose : deoxyribose 
A) Protein : enzyme 
B) Amino acid : protein 
C) Codon : amino acid 
D) Ribose : deoxyribose

Question 15

The distance between base pairs in DNA is 0.34 nm.How many base pairs are there in a chromosome that is 12.0 cm long? (Note: 109 nm = 1 m)

Accepted Answer

A) 2.8 * 107 
B) 3.5 * 1010 
C) 3.5 * 108 
D) 3.5 * 109 
A) 2.8 * 107 
B) 3.5 * 1010 
C) 3.5 * 108 
D) 3.5 * 109

Question 16

Genes can be transferred between organisms because

Accepted Answer

A) all organisms produce the same enzymes. 
B) adding one gene to an organism will not change the chemistry of a cell. 
C) all organisms have the same cellular structure. 
D) codons correspond to the same amino acids in all organisms. 
A) all organisms produce the same enzymes. 
B) adding one gene to an organism will not change the chemistry of a cell. 
C) all organisms have the same cellular structure. 
D) codons correspond to the same amino acids in all organisms.

Question 17

The level of protein structure that involves interactions among amino acid side chains is

Accepted Answer

A) primary. 
B) secondary. 
C) tertiary. 
D) double helix. 
A) primary. 
B) secondary. 
C) tertiary. 
D) double helix.

Question 18

A nucleotide consists of which of the following? I.bases
II)complimentary base pairs
III)deoxyribose molecule
IV)phosphates

Accepted Answer

A) I and III 
B) II,III,and IV 
C) I,III,and IV 
D) II and IV 
A) I and III 
B) II,III,and IV 
C) I,III,and IV 
D) II and IV

Question 19

Small changes in ________ protein structure may lead to big changes in _______ protein structures.

Accepted Answer

A) secondary;tertiary 
B) primary;secondary 
C) primary;tertiary 
D) tertiary;secondary 
A) secondary;tertiary 
B) primary;secondary 
C) primary;tertiary 
D) tertiary;secondary

Question 20

A catalytic effect or acceleration of a reaction can occur in the ________ of an enzyme.

Accepted Answer

A) DNA 
B) RNA 
C) substrates 
D) active site 
A) DNA 
B) RNA 
C) substrates 
D) active site

If the adenine (A) content of DNA is 33 percent,what is its guanine (G) content?

Plasmids are

Identify the nucleotide sequence that is complementary to the following DNA sequence TACGGCTTAAG

The DNA materials contained in a(n) _________codes for the production of a protein.

The primary structure of a protein is the

Sickle cell anemia I.is caused by mutation in the human gene that codes for a protein expressed in the red blood cells. II)is a genetic disease,inheritable from one's parents. III)can cause red blood cells to become sickle shaped. IV)can clog organs,reducing their blood supplies.

Deoxyribose is the ________ in DNA.

The tertiary structure of a protein is the

If the thymine (T) content of DNA is 29 percent,what is the content of guanine (G)?

What functional groups are present in all amino acids?

What forces hold the two strands of DNA together?

Plants are easier to genetically engineer than bacteria due to their simpler cellular structure.

Insulin derived from animals was used to treat diabetes cases until genetic modification techniques arose in the late 1970s.Which of the following was a drawback of nonhuman insulin?

Chose the analogy below that best matches. nucleotide : DNA

The distance between base pairs in DNA is 0.34 nm.How many base pairs are there in a chromosome that is 12.0 cm long? (Note: 10⁹ nm = 1 m)

Genes can be transferred between organisms because

The level of protein structure that involves interactions among amino acid side chains is

A nucleotide consists of which of the following? I.bases II)complimentary base pairs III)deoxyribose molecule IV)phosphates

Small changes in __ protein structure may lead to big changes in _ protein structures.

A catalytic effect or acceleration of a reaction can occur in the ________ of an enzyme.

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Exam 13: Genes and Life

If the adenine (A) content of DNA is 33 percent,what is its guanine (G) content?

Plasmids are

Identify the nucleotide sequence that is complementary to the following DNA sequence TACGGCTTAAG

The DNA materials contained in a(n) _________codes for the production of a protein.

The primary structure of a protein is the

Sickle cell anemia I.is caused by mutation in the human gene that codes for a protein expressed in the red blood cells. II)is a genetic disease,inheritable from one's parents. III)can cause red blood cells to become sickle shaped. IV)can clog organs,reducing their blood supplies.

Deoxyribose is the ________ in DNA.

The tertiary structure of a protein is the

If the thymine (T) content of DNA is 29 percent,what is the content of guanine (G)?

What functional groups are present in all amino acids?

What forces hold the two strands of DNA together?

Plants are easier to genetically engineer than bacteria due to their simpler cellular structure.

Insulin derived from animals was used to treat diabetes cases until genetic modification techniques arose in the late 1970s.Which of the following was a drawback of nonhuman insulin?

Chose the analogy below that best matches. nucleotide : DNA

The distance between base pairs in DNA is 0.34 nm.How many base pairs are there in a chromosome that is 12.0 cm long? (Note: 109 nm = 1 m)

Genes can be transferred between organisms because

The level of protein structure that involves interactions among amino acid side chains is

A nucleotide consists of which of the following? I.bases II)complimentary base pairs III)deoxyribose molecule IV)phosphates

Small changes in ________ protein structure may lead to big changes in _______ protein structures.

A catalytic effect or acceleration of a reaction can occur in the ________ of an enzyme.

Portable Electronics: the Periodic Table in the Palm of Your Hand

The Air We Breathe

Radiation From the Sun

Climate Change

Energy From Combustion

Energy From Alternative Sources

Energy Storage

Water Everywhere: A Most Precious Resource

The World of Polymers and Plastics

Brewing and Chewing

Nutrition

Health Medicine

Who Killed Drthompson a Forensic Mystery

Filters

The distance between base pairs in DNA is 0.34 nm.How many base pairs are there in a chromosome that is 12.0 cm long? (Note: 10⁹ nm = 1 m)

Small changes in __ protein structure may lead to big changes in _ protein structures.