LIFE SCIENCE BSC 1005 EXAM 3 (CH.
9,10,12) QUESTIONS AND ANSWERS
(VERIFIED AND UPDATED)
DNA is composed of?
A. nucleotides
B. proteins
C. sugars
D. lipids
E. glvcolipids - ANS nucleotides
Nucleotides consists of?
A. proteins, glucose, and fats
B. sugar, phosphate, and a base
C. saccharides, amino acids, and lipids
D. glycoproteins and glycolipids
E. none of the above - ANS sugar, phospate, and a base
@2026/2027 ALLRIGHTS RESERVED.
,All of the following are characteristics of DNA except?
A. serves as the instruction manual for how to build an organisms
B. exists in all living organisms
C. offsprings inherit it from their parents
D. found in chromosomes
E. exists as a triple-stranded helix - ANS exists as a triple-stranded helix
Among the human population men get their ____ chromosomes that define them as male form
their _____
A. X; mothers
B. X; fathers
C. Y; mothers
D. Y; fathers
E. M; parental - ANS Y, fathers
DNA is characterized by base pairing; which of the following pairs is incorrect?
A. A-T
B. C-G
C. T-U
D. all are correct - ANS T-U
Which of the following bases is not associated with DNA?
@2026/2027 ALLRIGHTS RESERVED.
,A. adenine
B. thymine
C. guanine
D. cytosine
E. uracil - ANS uracil
The backbone of the double helix consists of ____ and _____ while the _____ forms the rung.
A. sugars, bases, phosphates
B. bases, sugars, phosphate
C. sugars, phosphate, bases
D. phosphates, bases, sugars
E. none is applicable - ANS sugar, phosphate, bases
Which kind of bond is associated with complementary base pairing?
A. covalent
B. hydrogen
C. ironic
D. all are applicable
E. none are applicable - ANS hydrogen
In the diagram above A refers to ______ associated with _____; while B refers to _____
associated with _____
A. DNA, ribose, RNA, deoxyribose
@2026/2027 ALLRIGHTS RESERVED.
, B. deoxyribose, DNA, ribose, RNA
C. ribose, RNA, deoxyribose, DNA
D. RNA, ribose, DNA, deoxyribose
E. none is apllicable - ANS ribose, RNA, deoxyribose, DNA
Telomeres are associated with
A. ends of linear chromosomes
B. prokaryotic chromosomes
C. repetitive sequences
D. A & C
E. B & C - ANS A&C
ends of linear chromosomes
repetitive sequence
In human cell transcription occurs in the ____; while translation occurs ______
A. centriole; ribosome
B. nucleus; cytoplasm
C. cytoplasm; nucleus
D. mitochondria; cytoplasm
E. ribosome; centroile - ANS nucleus; cytoplasm
Which of the following is not a characteristic of a codon?
@2026/2027 ALLRIGHTS RESERVED.
9,10,12) QUESTIONS AND ANSWERS
(VERIFIED AND UPDATED)
DNA is composed of?
A. nucleotides
B. proteins
C. sugars
D. lipids
E. glvcolipids - ANS nucleotides
Nucleotides consists of?
A. proteins, glucose, and fats
B. sugar, phosphate, and a base
C. saccharides, amino acids, and lipids
D. glycoproteins and glycolipids
E. none of the above - ANS sugar, phospate, and a base
@2026/2027 ALLRIGHTS RESERVED.
,All of the following are characteristics of DNA except?
A. serves as the instruction manual for how to build an organisms
B. exists in all living organisms
C. offsprings inherit it from their parents
D. found in chromosomes
E. exists as a triple-stranded helix - ANS exists as a triple-stranded helix
Among the human population men get their ____ chromosomes that define them as male form
their _____
A. X; mothers
B. X; fathers
C. Y; mothers
D. Y; fathers
E. M; parental - ANS Y, fathers
DNA is characterized by base pairing; which of the following pairs is incorrect?
A. A-T
B. C-G
C. T-U
D. all are correct - ANS T-U
Which of the following bases is not associated with DNA?
@2026/2027 ALLRIGHTS RESERVED.
,A. adenine
B. thymine
C. guanine
D. cytosine
E. uracil - ANS uracil
The backbone of the double helix consists of ____ and _____ while the _____ forms the rung.
A. sugars, bases, phosphates
B. bases, sugars, phosphate
C. sugars, phosphate, bases
D. phosphates, bases, sugars
E. none is applicable - ANS sugar, phosphate, bases
Which kind of bond is associated with complementary base pairing?
A. covalent
B. hydrogen
C. ironic
D. all are applicable
E. none are applicable - ANS hydrogen
In the diagram above A refers to ______ associated with _____; while B refers to _____
associated with _____
A. DNA, ribose, RNA, deoxyribose
@2026/2027 ALLRIGHTS RESERVED.
, B. deoxyribose, DNA, ribose, RNA
C. ribose, RNA, deoxyribose, DNA
D. RNA, ribose, DNA, deoxyribose
E. none is apllicable - ANS ribose, RNA, deoxyribose, DNA
Telomeres are associated with
A. ends of linear chromosomes
B. prokaryotic chromosomes
C. repetitive sequences
D. A & C
E. B & C - ANS A&C
ends of linear chromosomes
repetitive sequence
In human cell transcription occurs in the ____; while translation occurs ______
A. centriole; ribosome
B. nucleus; cytoplasm
C. cytoplasm; nucleus
D. mitochondria; cytoplasm
E. ribosome; centroile - ANS nucleus; cytoplasm
Which of the following is not a characteristic of a codon?
@2026/2027 ALLRIGHTS RESERVED.
