Question 1

A DNA codon consists of three nucleotides.

Accepted Answer

A) True 
 B)False

Question 2

When the chromosomes align themselves across the equator of the spindle fibers, it is characteristic of which phase of mitosis?

Accepted Answer

A) Prophase 
B) Anaphase 
C) Metaphase 
D) Telophase 
A) Prophase 
B) Anaphase 
C) Metaphase 
D) Telophase

Question 3

Transcription can be best described as the:

Accepted Answer

A) degradation of tRNA. 
B) reading of mRNA codons by tRNA. 
C) replication of DNA. 
D) synthesis of mRNA. 
A) degradation of tRNA. 
B) reading of mRNA codons by tRNA. 
C) replication of DNA. 
D) synthesis of mRNA.

Question 4

Editing of the mRNA begins when a modified adenine base is added to one end of the RNA strand.

Accepted Answer

A) True 
 B)False

Question 5

The anticodon on the tRNA molecule has exactly the same nucleotide sequence as the DNA code that formed that part of the mRNA molecule except that uracil would replace thymine.

Accepted Answer

A) True 
 B)False

Question 6

A type of ribonucleic acid that can stimulate translation is called RNAi.

Accepted Answer

A) True 
 B)False

Question 7

During prophase, chromosomes become chromatin, the nuclear membrane disappears, and spindle fibers form.

Accepted Answer

A) True 
 B)False

Question 8

What differentiates one DNA nucleotide from another is whether it has a ribose or a deoxyribose sugar.

Accepted Answer

A) True 
 B)False

Question 9

In the DNA molecule, obligatory base pairing always pairs:

Accepted Answer

A) A-G. 
B) C-T. 
C) A-T. 
D) both A and B. 
A) A-G. 
B) C-T. 
C) A-T. 
D) both A and B.

Question 10

Which of the following is not true of RNA?

Accepted Answer

A) It is a single strand. 
B) It contains uracil rather than thymine. 
C) The obligatory base pairs are adenine and uracil, and guanine and cytosine. 
D) It contains deoxyribose sugar. 
A) It is a single strand. 
B) It contains uracil rather than thymine. 
C) The obligatory base pairs are adenine and uracil, and guanine and cytosine. 
D) It contains deoxyribose sugar.

Question 11

The enzyme DNA polymerase coordinates the mechanism of obligatory base pairing.

Accepted Answer

A) True 
 B)False

Question 12

The end product of the process of translation is a:

Accepted Answer

A) mRNA molecule. 
B) tRNA molecule. 
C) protein. 
D) new DNA molecule. 
A) mRNA molecule. 
B) tRNA molecule. 
C) protein. 
D) new DNA molecule.

Question 13

The "rungs" of the DNA ladder are made up of either deoxyribose sugar or phosphoric acid.

Accepted Answer

A) True 
 B)False

Question 14

The pairing of bases of a strand of DNA is obligatory. If a strand of DNA were composed of the base sequence of ATCG, what would be the obligatory sequence of its opposing base pairs?

Accepted Answer

A) TAGC 
B) CGAT 
C) GCTA 
D) ATCG 
A) TAGC 
B) CGAT 
C) GCTA 
D) ATCG

Question 15

Match each of the terms related to protein synthesis with its corresponding statement or definition.
-Process that occurs when the double strands of a DNA segment separate and RNA nucleotides pair with DNA nucleotides

Accepted Answer

A) mRNA 
B) tRNA 
C) Transcription 
D) Translation 
E) RNAi 
A) mRNA 
B) tRNA 
C) Transcription 
D) Translation 
E) RNAi

Question 16

Explain the process of mitosis. Explain what occurs in each step.

Accepted Answer

Mitosis is the process of cell division

Question 17

DNA synthesis occurs during prophase in mitosis.

Accepted Answer

A) True 
 B)False

Question 18

Genes determine polypeptide structure, which determines the structure of enzymes and structural proteins, which determine the cell's functions and structure.

Accepted Answer

A) True 
 B)False

Question 19

Hypertrophy refers to an increase in cell size, whereas hyperplasia refers to an increase in cell number.

Accepted Answer

A) True 
 B)False

Question 20

Match each of the following terms with its definition or description.
-This can destroy an improperly folded protein before it can harm the cell.

Accepted Answer

A) Adenine 
B) mRNA 
C) Intron 
D) RNAi 
E) Uracil
F)Chaperone protein
G)Transcription
H)tRNA
I)Thymine
J)Exons
K)Proteasomes
L)Telomere
M)Centromere
N)Haploid
O)Diploid
P)Translation 
A) Adenine 
B) mRNA 
C) Intron 
D) RNAi 
E) Uracil
F)Chaperone protein
G)Transcription
H)tRNA
I)Thymine
J)Exons
K)Proteasomes
L)Telomere
M)Centromere
N)Haploid
O)Diploid
P)Translation

Exam 7: Cell Growth and Development

A DNA codon consists of three nucleotides.

When the chromosomes align themselves across the equator of the spindle fibers, it is characteristic of which phase of mitosis?

Transcription can be best described as the:

Editing of the mRNA begins when a modified adenine base is added to one end of the RNA strand.

The anticodon on the tRNA molecule has exactly the same nucleotide sequence as the DNA code that formed that part of the mRNA molecule except that uracil would replace thymine.

A type of ribonucleic acid that can stimulate translation is called RNAi.

During prophase, chromosomes become chromatin, the nuclear membrane disappears, and spindle fibers form.

What differentiates one DNA nucleotide from another is whether it has a ribose or a deoxyribose sugar.

In the DNA molecule, obligatory base pairing always pairs:

Which of the following is not true of RNA?

The enzyme DNA polymerase coordinates the mechanism of obligatory base pairing.

The end product of the process of translation is a:

The "rungs" of the DNA ladder are made up of either deoxyribose sugar or phosphoric acid.

The pairing of bases of a strand of DNA is obligatory. If a strand of DNA were composed of the base sequence of ATCG, what would be the obligatory sequence of its opposing base pairs?

Match each of the terms related to protein synthesis with its corresponding statement or definition. -Process that occurs when the double strands of a DNA segment separate and RNA nucleotides pair with DNA nucleotides

Explain the process of mitosis. Explain what occurs in each step.

DNA synthesis occurs during prophase in mitosis.

Genes determine polypeptide structure, which determines the structure of enzymes and structural proteins, which determine the cell's functions and structure.

Hypertrophy refers to an increase in cell size, whereas hyperplasia refers to an increase in cell number.

Match each of the following terms with its definition or description. -This can destroy an improperly folded protein before it can harm the cell.

Organization of the Body

Homeostasis

Chemistry of Life

Biomolecules

Cell Structure

Cell Function

Introduction to Tissues

Tissue Types

Skin

Skeletal Tissues

Axial Skeleton

Appendicular Skeleton

Articulations

Axial Muscles

Appendicular Muscles

Muscle Contraction

Nervous System Cells

Nerve Signaling

Central Nervous System

Peripheral Nervous System

Autonomic Nervous System

General Senses

Special Senses

Endocrine Regulation

Endocrine Glands

Blood

Heart

Blood Vessels

Circulation of the Blood

Lymphatic System

Innate Immunity

Adaptive Immunity

Stress

Respiratory Tract

Ventilation

Gas Exchange Transport

Upper Digestive Tract

Lower Digestive Tract

Digestion and Absorption

Nutrition and Metabolism

Urinary System

Fluid and Electrolyte Balance

Acid-Base Balance

Male Reproductive System

Female Reproductive System

Growth, Development, and Aging

Genetics and Heredity

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