BISC 160 EXAM 3 || Possible Questions Accurately Answered.
The "central dogma" of molecular biology states that correct answers information flow in the cell
is unidirectional, from DNA to protein
If a cell is able to move into mitosis, what has to happen? correct answers CDK must bind to
cyclin
Exons are correct answers spliced together from the original transcript
DNA polymerase reads the lagging strand from _______ and reads the leading strand from
________ correct answers 3' to 5'; 3' to 5'
The products of mitosis are correct answers two genetically identical nuclei
In plant cells, cytokinesis is accomplished by the formation of a(n) correct answers cell plate
A tissue in a mouse contains two types of cells: one that divides rapidly and one that divides
more slowly. The most likely difference between these two cell types is that the slow-dividing
cell type spends more time in _______ phase. correct answers G1
Compared with DNA replication, transcription is _______ error prone because of differences in
_______ correct answers more; the proofreading system
In interphase, cells do all but which of the following? correct answers dissolve the nuclear
membrane
Which of these is not needed to make a new, charged tRNA? correct answers a start codon
,Which of the following molecules functions to transfer information from one generation to the
next in eukaryotes? correct answers DNA
Information sources used by Watson and Crick to determine the structure of DNA included
correct answers X-ray crystallography of double-stranded DNA
DNA polymerase from Thermus aquaticus is useful in PCR because it correct answers can
withstand high temperatures.
The compressed state of DNA as the cell prepares for division is: correct answers chromosome
If you knew that the sequence of one DNA strand was 5' AACTGC 3', it's complementary strand
would have to be correct answers 3' TTGACG 5'
In animals, meiosis is correct answers The process that results in gametes
Organisms of a species of fern have both a multicellular haploid and a multicellular diploid
phase. This is an example of correct answers alternation of generations
In _______ life cycles, there is more time spent between meiosis and fertilization than between
fertilization and meiosis. correct answers haplontic
Which of the following is most likely to lead to aneuploidy? correct answers nondisjunction
The haploid number of chromosomes in a cell of a grasshopper is 18. How many chromosomes
are in a somatic cell? correct answers 36
Which process is closest to the opposite of meiosis in terms of effects on the number of
chromosomes? correct answers fertilization
,The typical complete cell cycle consists of correct answers interphase, mitosis, cytokinesis
Pairing of homologous chromosomes occurs correct answers meiosis I only
this image shows a correct answers karyotype
In DNA strands the sugar molecules are joined to one another by ____________________.
correct answers phosphodiester bonds
Which of the following is not a characterisNc of DNA?
A) Strands are anNparallel to one another
B) Double Helix
C) IdenNcal anNparallel strands
D) Uniform diameter
E) The molecule is right handed correct answers C- the strands are not identical
If cyclin is absent from a cell then CDK will be: correct answers unmodified and unable to
sNmulate cellular division
The Tasmanian Devil is diploid and has a 2n chromosome count of 14. How many chromosomes
would be present in a metaphase cell of this species? correct answers 14
The "programmed cell deth" that cells may enter due to damage to the cell and/or DNA is:
correct answers apoptosis
The movement of a _________ codon into the _______ site of the ribosome calls for a release
factor and the terminaNon of translaNon. correct answers stop, A
, The iniNator and terminator sequences of genes are correct answers found in the DNA and
delimit the region to be transcribed
A diploid zygote is the product of fusion of which of the following? correct answers 1n sperm &
1n egg
reason for sexual reproduction? correct answers GENETIC DIVERSITY!!!
Mitotic prophase differs from prophase I of meiosis in that correct answers crossing over is
characteristic of prophase I of meiosis but not of mitotic prophase
In an organism with a diploid number of 8, a gamete has _______ chromosomes and a liver cell
has _______ chromosomes correct answers 4,8
The three-dimensional structure of tRNA is maintained by correct answers Hydrogen bonds
Kona (that is my wife's obese dog) has 2n=78. How many homologous pairs does he have?
correct answers 39
The product of a gene is a(n)
(A) DNA molecule.
(B) RNA molecule.
(C) Protein.(
D) tRNA.
All but A. correct answers All but A
If a transcription factor causes more frequent gene expression of a gene that codes for protein A
in one cell, what do you expect to happen in the cell correct answers an increase in the amount of
protein A in that cell.
The "central dogma" of molecular biology states that correct answers information flow in the cell
is unidirectional, from DNA to protein
If a cell is able to move into mitosis, what has to happen? correct answers CDK must bind to
cyclin
Exons are correct answers spliced together from the original transcript
DNA polymerase reads the lagging strand from _______ and reads the leading strand from
________ correct answers 3' to 5'; 3' to 5'
The products of mitosis are correct answers two genetically identical nuclei
In plant cells, cytokinesis is accomplished by the formation of a(n) correct answers cell plate
A tissue in a mouse contains two types of cells: one that divides rapidly and one that divides
more slowly. The most likely difference between these two cell types is that the slow-dividing
cell type spends more time in _______ phase. correct answers G1
Compared with DNA replication, transcription is _______ error prone because of differences in
_______ correct answers more; the proofreading system
In interphase, cells do all but which of the following? correct answers dissolve the nuclear
membrane
Which of these is not needed to make a new, charged tRNA? correct answers a start codon
,Which of the following molecules functions to transfer information from one generation to the
next in eukaryotes? correct answers DNA
Information sources used by Watson and Crick to determine the structure of DNA included
correct answers X-ray crystallography of double-stranded DNA
DNA polymerase from Thermus aquaticus is useful in PCR because it correct answers can
withstand high temperatures.
The compressed state of DNA as the cell prepares for division is: correct answers chromosome
If you knew that the sequence of one DNA strand was 5' AACTGC 3', it's complementary strand
would have to be correct answers 3' TTGACG 5'
In animals, meiosis is correct answers The process that results in gametes
Organisms of a species of fern have both a multicellular haploid and a multicellular diploid
phase. This is an example of correct answers alternation of generations
In _______ life cycles, there is more time spent between meiosis and fertilization than between
fertilization and meiosis. correct answers haplontic
Which of the following is most likely to lead to aneuploidy? correct answers nondisjunction
The haploid number of chromosomes in a cell of a grasshopper is 18. How many chromosomes
are in a somatic cell? correct answers 36
Which process is closest to the opposite of meiosis in terms of effects on the number of
chromosomes? correct answers fertilization
,The typical complete cell cycle consists of correct answers interphase, mitosis, cytokinesis
Pairing of homologous chromosomes occurs correct answers meiosis I only
this image shows a correct answers karyotype
In DNA strands the sugar molecules are joined to one another by ____________________.
correct answers phosphodiester bonds
Which of the following is not a characterisNc of DNA?
A) Strands are anNparallel to one another
B) Double Helix
C) IdenNcal anNparallel strands
D) Uniform diameter
E) The molecule is right handed correct answers C- the strands are not identical
If cyclin is absent from a cell then CDK will be: correct answers unmodified and unable to
sNmulate cellular division
The Tasmanian Devil is diploid and has a 2n chromosome count of 14. How many chromosomes
would be present in a metaphase cell of this species? correct answers 14
The "programmed cell deth" that cells may enter due to damage to the cell and/or DNA is:
correct answers apoptosis
The movement of a _________ codon into the _______ site of the ribosome calls for a release
factor and the terminaNon of translaNon. correct answers stop, A
, The iniNator and terminator sequences of genes are correct answers found in the DNA and
delimit the region to be transcribed
A diploid zygote is the product of fusion of which of the following? correct answers 1n sperm &
1n egg
reason for sexual reproduction? correct answers GENETIC DIVERSITY!!!
Mitotic prophase differs from prophase I of meiosis in that correct answers crossing over is
characteristic of prophase I of meiosis but not of mitotic prophase
In an organism with a diploid number of 8, a gamete has _______ chromosomes and a liver cell
has _______ chromosomes correct answers 4,8
The three-dimensional structure of tRNA is maintained by correct answers Hydrogen bonds
Kona (that is my wife's obese dog) has 2n=78. How many homologous pairs does he have?
correct answers 39
The product of a gene is a(n)
(A) DNA molecule.
(B) RNA molecule.
(C) Protein.(
D) tRNA.
All but A. correct answers All but A
If a transcription factor causes more frequent gene expression of a gene that codes for protein A
in one cell, what do you expect to happen in the cell correct answers an increase in the amount of
protein A in that cell.
