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Which RNA polymerase subunit(s) form the channel for the DNA template?
Which RNA polymerase subunit(s) form the channel for the DNA template?
Which RNA polymerase subunit(s) form the channel for the DNA template?

▸ α

▸ β

▸ β and β′

▸ β′

▸ core enzyme
Lettucebereal   22   1 Reply
A year ago
CAAT boxes in eukaryotic gene promoters play a role in:
CAAT boxes in eukaryotic gene promoters play a role in:
[html]CAAT boxes in eukaryotic gene promoters play a role in:

▸ determining the efficiency of the promoter.

▸ determining the specificity of transcription initiation.

▸ determining both the efficiency of the promoter and the specificity of
thedrunkmind   22   1 Reply
A year ago
RNA splicing occurs:
RNA splicing occurs:
RNA splicing occurs:

▸ in the nucleus prior to 5' capping.

▸ in the nucleus after 5' capping.

▸ in the cytoplasm prior to 5' capping.

▸ in the cytoplasm after 5' capping.

▸ in the cytoplasm just prior to translation.
extrl83   22   1 Reply
A year ago
The last two bases at the 3' end of exons adjacent to major (U2-type) introns have a high ...
The last two bases at the 3' end of exons adjacent to major (U2-type) introns have a high ...
The last two bases at the 3' end of exons adjacent to major (U2-type) introns have a high probability of being:

▸ purines.

▸ pyrimidines.

▸ A or T.

▸ C or G.

▸ A, G, or T.
jdot   22   1 Reply
A year ago
True or False? Stress granules contain translationally active mRNAs that aggregate in response to a ...
True or False? Stress granules contain translationally active mRNAs that aggregate in response to a ...
True or False? Stress granules contain translationally active mRNAs that aggregate in response to a general inhibition of translation initiation.

▸ true

▸ false
jason23   22   1 Reply
A year ago
True or False? Puromycin resembles an amino acid attached to the terminal adenosine of a tRNA.
True or False? Puromycin resembles an amino acid attached to the terminal adenosine of a tRNA.
True or False? Puromycin resembles an amino acid attached to the terminal adenosine of a tRNA.

▸ true

▸ false
joshtatum92   22   1 Reply
A year ago
A missense suppressor for a particular gene may also cause:
A missense suppressor for a particular gene may also cause:
[html]A missense suppressor for a particular gene may also cause:

▸ termination of translation of another gene.

▸ an amino acid substitution in a polypeptide for another gene.

▸ suppression of expression of another gene.

▸ aberrant splicin
rbayla   22   1 Reply
A year ago
Which suppressors are relatively efficient because the codon(s) is/are used rather infrequently to ...
Which suppressors are relatively efficient because the codon(s) is/are used rather infrequently to ...
[html]Which suppressors are relatively efficient because the codon(s) is/are used rather infrequently to terminate protein synthesis in E. coli?

▸ Amber suppressors

▸ Ochre suppressors

▸ Opal suppressors

▸ Amber and ochre suppressor
urraberry   22   1 Reply
A year ago
CRP functions with the lac operon as an example of:
CRP functions with the lac operon as an example of:
CRP functions with the lac operon as an example of:

▸ induction by negative control.

▸ induction by positive control.

▸ repression by negative control.

▸ repression by positive control.

▸ attenuation.
jason23   22   1 Reply
A year ago
Which of the following is not a prion disease?
Which of the following is not a prion disease?
Which of the following is not a prion disease?

▸ Prader–Willi syndrome

▸ Kuru

▸ Gerstmann–Straussler syndrome

▸ Scrapie

▸ Creutzfeldt–Jakob disease
florida1014   22   1 Reply
A year ago
For riboswitches to function, they are generally characterized by the presence of:
For riboswitches to function, they are generally characterized by the presence of:
[html]For riboswitches to function, they are generally characterized by the presence of:

▸ a long 5' untranslated region before the reading frame of the protein.

▸ a long 3' untranslated region after the reading frame of the protein.

▸ a sh
Septeos   22   1 Reply
A year ago
In which of the following groups of organisms are introns the most rare?
In which of the following groups of organisms are introns the most rare?
In which of the following groups of organisms are introns the most rare?

▸ Protists

▸ Plants

▸ Mammals

▸ Yeast

▸ Worms
florida1014   22   1 Reply
A year ago
A licensing factor is necessary for:
A licensing factor is necessary for:
A licensing factor is necessary for:

▸ gene activation.

▸ termination of replication.

▸ initiation of replication.

▸ methylation of DNA.

▸ activation of multiple replicons simultaneously.
Dante52   22   1 Reply
A year ago
Which of the following is an error-prone DNA polymerase?
Which of the following is an error-prone DNA polymerase?
Which of the following is an error-prone DNA polymerase?

▸ DNA polymerase I

▸ DNA polymerase II

▸ DNA polymerase III

▸ DNA polymerase IV

▸ DNA polymerase β
kokomel23   22   1 Reply
A year ago
True or False? Transcription of one of the genes flanking oriC provides torsional stress that helps ...
True or False? Transcription of one of the genes flanking oriC provides torsional stress that helps ...
True or False? Transcription of one of the genes flanking oriC provides torsional stress that helps unwind the double-stranded DNA.

▸ true

▸ false
lcard044   22   1 Reply
A year ago
True or False? Some cases of insulin-dependent diabetes have resulted from loss of sequence between ...
True or False? Some cases of insulin-dependent diabetes have resulted from loss of sequence between ...
True or False? Some cases of insulin-dependent diabetes have resulted from loss of sequence between direct repeats.

▸ true

▸ false
cjohns21   22   1 Reply
A year ago
What is the current estimate of the minimum number of genes involved in DNA repair in humans?
What is the current estimate of the minimum number of genes involved in DNA repair in humans?
What is the current estimate of the minimum number of genes involved in DNA repair in humans?

▸ 20–30

▸ 40–50

▸ 60–70

▸ 90 or more

▸ 130 or more
teyodani   22   1 Reply
A year ago
The best-characterized family of retroposons is:
The best-characterized family of retroposons is:
The best-characterized family of retroposons is:

▸ copia elements.

▸ Ty elements.

▸ LINEs.

▸ HIV.

▸ Ac elements.
mylesnagop   22   1 Reply
A year ago
Somatic mutation and class switching involves a(n):
Somatic mutation and class switching involves a(n):
Somatic mutation and class switching involves a(n):

▸ adenine deaminase.

▸ cytidine deaminase.

▸ adenine methylase.

▸ cytidine methylase.

▸ cytidine demethylase.
johnboycs   22   1 Reply
A year ago
How much factor relative to core enzyme is there in a typical actively growing bacterial cell?
How much factor relative to core enzyme is there in a typical actively growing bacterial cell?
How much σ factor relative to core enzyme is there in a typical actively growing bacterial cell?

▸ About the same amount

▸ About one-fourth as much

▸ Somewhat more than core enzyme

▸ About half as much

▸ More than twice as much
flemingpk   22   1 Reply
A year ago
The ras proto-oncogene family is a group of related genes that slow or stop the progression of ...
The ras proto-oncogene family is a group of related genes that slow or stop the progression of ...
The ras proto-oncogene family is a group of related genes that slow or stop the progression of cancer.
 
  a. True
   b. False
  Indicate whether the statement is true or false
Fignshev   23   1 Reply
6 years ago
The laws related to sperm donation and surrogacy are the same in each state in the US.
The laws related to sperm donation and surrogacy are the same in each state in the US.
The laws related to sperm donation and surrogacy are the same in each state in the US.
 
  a. True
   b. False
  Indicate whether the statement is true or false
Rhileybrooke2   23   1 Reply
6 years ago
One of the important assumptions made during the study of heritability in twins is that monozygotic ...
One of the important assumptions made during the study of heritability in twins is that monozygotic ...
One of the important assumptions made during the study of heritability in twins is that monozygotic twins share all their ____________________ and their ____________________.
 
  Fill in the blank(s) with correct word
Rodderick   23   1 Reply
6 years ago
After contracting SARS, about ____ percent of the infected died.
After contracting SARS, about ____ percent of the infected died.
After contracting SARS, about ____ percent of the infected died.
 
  a. 10
  b. 25
  c. 50
  d. 75
 
   e. 100
ronswanson11   23   1 Reply
6 years ago
Discuss how the therapy for PKU would be different if the disease was not caused by the essential ...
Discuss how the therapy for PKU would be different if the disease was not caused by the essential ...
Discuss how the therapy for PKU would be different if the disease was not caused by the essential amino acid phenylalanine, but rather by a non-essential amino acid. Would the disorder be potentially more or less life-threatening? Explain your reason
brunex16013   23   1 Reply
6 years ago
The genotypic definition of race states that races are populations of the same species in which ...
The genotypic definition of race states that races are populations of the same species in which ...
The genotypic definition of race states that races are populations of the same species in which allele frequencies differ by ____.
 
  a. 15-20
  b. 85
  c. 1 in 1000 nucleotides
   d. 25-30
 
   e. 5-10
yaskween2003   23   1 Reply
6 years ago
When species-specific MHC proteins on xenotransplants trigger a complement-mediated rejection in the ...
When species-specific MHC proteins on xenotransplants trigger a complement-mediated rejection in the ...
When species-specific MHC proteins on xenotransplants trigger a complement-mediated rejection in the recipient, a(n) ____________________ results.
 
  Fill in the blank(s) with correct word
hay456   23   1 Reply
6 years ago
Free fetal DNA (ffDNA) originates from the breakdown of fetal cells and their nuclei in the ...
Free fetal DNA (ffDNA) originates from the breakdown of fetal cells and their nuclei in the ...
Free fetal DNA (ffDNA) originates from the breakdown of fetal cells and their nuclei in the ____________________.
 
  Fill in the blank(s) with correct word
Ebony321   23   1 Reply
6 years ago
In most human populations, lactase levels are highest soon after birth and drop off in ...
In most human populations, lactase levels are highest soon after birth and drop off in ...
In most human populations, lactase levels are highest soon after birth and drop off in middle-to-late childhood.
 
  a. True
   b. False
  Indicate whether the statement is true or false
sarweston   23   1 Reply
6 years ago
A maintenance methyltransferase (Multiple Choice)
A maintenance methyltransferase (Multiple Choice)
A maintenance methyltransferase
 
  a. acts on unmethylated DNA.
  b. acts on DNA strands in which only some CpG islands are methylated.
  c. acts on fully methylated DNA.
  d. acts on hemimethylated DNA.
  e. removes m
rocketleague   23   1 Reply
6 years ago
What does the variable 2pq represent?
What does the variable 2pq represent?
What does the variable 2pq represent?
 
  What will be an ideal response?
markiplier908   23   1 Reply
6 years ago
What is meant by the term cotransformation?
What is meant by the term cotransformation?
What is meant by the term cotransformation?
 
  What will be an ideal response?
kemkem9   23   1 Reply
6 years ago
We can detect the SNP in the S allele because it destroys a DdeI restriction site, leading to DNA ...
We can detect the SNP in the S allele because it destroys a DdeI restriction site, leading to DNA ...
We can detect the SNP in the S allele because it destroys a DdeI restriction site, leading to DNA restriction fragment variation revealed by Southern blot analysis.
 
  Either two or three restriction sequences for the restriction endonucl
Salmams   23   1 Reply
6 years ago
A restriction map of A and S is shown. Members of a family were analyzed by cutting their DNA with ...
A restriction map of A and S is shown. Members of a family were analyzed by cutting their DNA with ...
A restriction map of A and S is shown. Members of a family were analyzed by cutting their DNA with DdeI. Which individuals in the family have the genotype AA?
 
  What will be an ideal response?
costfrost   23   2 Replies
6 years ago
The closer together two genes are on a chromosome, :
The closer together two genes are on a chromosome, :
The closer together two genes are on a chromosome,
 
  A) the more likely there will be a recombination event between them.
  B) the less likely there will be a recombination event between them.
  C) the greater the chance that a
jdubes   23   2 Replies
6 years ago
After locating a genome region likely to include a QTL, what must be found in this region? What ...
After locating a genome region likely to include a QTL, what must be found in this region? What ...
After locating a genome region likely to include a QTL, what must be found in this region?
 
  What will be an ideal response?
LL06   23   1 Reply
6 years ago
In the human ABO blood system, the allele i is dominant to IA and IB. (True or false?)
In the human ABO blood system, the allele i is dominant to IA and IB. (True or false?)
In the human ABO blood system, the allele i is dominant to IA and IB.
 
  Indicate whether the statement is true or false
Kfields37   23   2 Replies
6 years ago
The counterpart to the use of mtDNA to reconstruct maternal lineages is the use of chloroplast DNA ...
The counterpart to the use of mtDNA to reconstruct maternal lineages is the use of chloroplast DNA ...
The counterpart to the use of mtDNA to reconstruct maternal lineages is the use of chloroplast DNA to reconstruct paternal lineages.
 
  Indicate whether the statement is true or false
Drea Anna   23   1 Reply
6 years ago
What were the genotypes of the sinistral female and dextral male that were initially chosen?
What were the genotypes of the sinistral female and dextral male that were initially chosen?
What were the genotypes of the sinistral female and dextral male that were initially chosen?
 
  A) dd female and Dd male
  B) Dd female and dd male
  C) dd female and DD male
  D) DD female and dd male
  E) Dd female a
vincent_pijen   23   1 Reply
6 years ago
With regards to the sequence alignment G T C C A T C G G G T C G A T C G, which of the following ...
With regards to the sequence alignment G T C C A T C G G G T C G A T C G, which of the following ...
With regards to the sequence alignment G T C C A T C G G G T C G A T C  G, which of the following statements is not true?
 
  A) There has been a base deletion.
  B) There has been a base substitution.
  C) There has been a gene
madisonbodiford   23   1 Reply
6 years ago
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