Bio 181 Grand Canyon University Exam 3
Questions With Complete Solutions
A frameshift mutation could result from Correct
Answers E) either an insertion or a deletion of a
base.
A new DNA strand elongates only in the 5' to 3'
direction because Correct Answers DNA
polymerase can only add nucleotides to the free 3'
end.
Abnormal chromosomes are frequently found in
malignant tumors. Errors such as translocations
may place a gene in close proximity to different
control regions. Which of the following might then
occur to make the cancer worse?
a) an increase in nondisjunction
b) expression of inappropriate gene products
c) a decrease in mitotic frequency
d) death of the cancer cells in the tumor
e) sensitivity of the immune system Correct
Answers expression of inappropriate gene
products
Accuracy in the translation of mRNA into the
primary structure of a polypeptide depends on
specificity in the Correct Answers bonding of the
anticodon to the codon and the attachment of
amino acids to tRNAs
, An Okazaki fragment has which of the following
arrangements? Correct Answers DNA polymerase
I, DNA polymerase III
At a specific area of a chromosome, the sequence
of nucleotides below is resent where the chain
opens to form a replication fork: 3' C C T A G G C T
G C A A T C C 5'. An RNA primer is formed starting
at the underlined T (T) of the template. Which of
the following represents the primer sequence?
a) 5' G C C T A G G 3'
b) 3' G C C T A G G 5'
c) 5' A C G T Y A G G 3'
d) 5' A C G U U A G G 3'
c) 5' G C C U A G G 3' Correct Answers d) 5' A C G
U U A G G 3'
Cytosine makes up 42% of the nucleotides in a
sample of DNA from an organism. Approximately
what percentage of the nucleotides in this sample
will be thymine? Correct Answers 8%
DNA replication is semiconservative because...
Correct Answers the resulting daughter molecules
contain one strand of the original parental DNA and
one new strand
For a science fair project, two students decided to
repeat the Hershey and Chase experiment, with
Questions With Complete Solutions
A frameshift mutation could result from Correct
Answers E) either an insertion or a deletion of a
base.
A new DNA strand elongates only in the 5' to 3'
direction because Correct Answers DNA
polymerase can only add nucleotides to the free 3'
end.
Abnormal chromosomes are frequently found in
malignant tumors. Errors such as translocations
may place a gene in close proximity to different
control regions. Which of the following might then
occur to make the cancer worse?
a) an increase in nondisjunction
b) expression of inappropriate gene products
c) a decrease in mitotic frequency
d) death of the cancer cells in the tumor
e) sensitivity of the immune system Correct
Answers expression of inappropriate gene
products
Accuracy in the translation of mRNA into the
primary structure of a polypeptide depends on
specificity in the Correct Answers bonding of the
anticodon to the codon and the attachment of
amino acids to tRNAs
, An Okazaki fragment has which of the following
arrangements? Correct Answers DNA polymerase
I, DNA polymerase III
At a specific area of a chromosome, the sequence
of nucleotides below is resent where the chain
opens to form a replication fork: 3' C C T A G G C T
G C A A T C C 5'. An RNA primer is formed starting
at the underlined T (T) of the template. Which of
the following represents the primer sequence?
a) 5' G C C T A G G 3'
b) 3' G C C T A G G 5'
c) 5' A C G T Y A G G 3'
d) 5' A C G U U A G G 3'
c) 5' G C C U A G G 3' Correct Answers d) 5' A C G
U U A G G 3'
Cytosine makes up 42% of the nucleotides in a
sample of DNA from an organism. Approximately
what percentage of the nucleotides in this sample
will be thymine? Correct Answers 8%
DNA replication is semiconservative because...
Correct Answers the resulting daughter molecules
contain one strand of the original parental DNA and
one new strand
For a science fair project, two students decided to
repeat the Hershey and Chase experiment, with
