Individual effort, one log-in/submission attempt, 60 minute timed assessment of concepts from Chapter 12.
70% is purine.
20% is guanine.
30% is adenine.
70% is pyrimidine.
Rate this question:
A purine paired with a pyrimidine.
A paired with G and C paired with T.
Sugar-phosphate paired with sugar-phosphate.
A 5 prime end paired with a 3 prime end.
Rate this question:
One of the new molecules conserves both of the original DNA strands.
The new DNA molecule contains two new DNA strands.
Both of the new molecules contain one new strand and one old strand.
DNA polymerase conserves both of the old strands.
Rate this question:
The bases are covalently bonded to the sugars.
The sugars are covalently bonded to the phosphates.
The bases are hydrogen-bonded to one another.
The nucleotides are covalently bonded to one another.
Rate this question:
3' TCCGAT 5'
3' ATCGGA 5'
3' TAGCCT 5'
3' AACGGUA 5'
Rate this question:
DNA is transformed into RNA.
DNA is transformed into protein.
Bacteria cannot grow on penicillin.
Organisms receive foreign DNA and thereby acquire a new characteristic.
Rate this question:
Are always paired with a purine.
Are thymine and cytosine.
Keep DNA from replicating too often.
Are adenine and guanine.
Rate this question:
Franklin's diffraction data.
Chargaff's rules.
Complementary base pairing.
Alternating sugar-phosphate backbone.
Rate this question:
Is smaller than a base.
Is a subunit of a nucleic acid.
Has a lot of variable parts.
Has at least four phosphates.
Always joins with other nucleotides.
Always joins with other nucleotides.
Rate this question:
Backbones to split.
Nucleotides to join together.
Hydrolysis and synthesis to occur.
Hydrogen bonds to unzip.
Rate this question:
States that DNA is a template for all RNA production.
States that DNA is a template only for DNA replication.
States that translation precedes transcription.
States that RNA is a template for DNA replication.
Rate this question:
An mRNA.
Proteins.
An rRNA
Ribozymes.
Rate this question:
RNA is made with one strand of the DNA serving as a template.
In making RNA, the base uracil of RNA pairs with the base thymine of DNA.
The enzyme RNA polymerase synthesizes RNA.
RNA is made in the cytoplasm of eukaryotic cells.
Rate this question:
Some amino acids are specified by more than one codon.
Some codons specify more than one amino acid.
Some codons do not specify any amino acid.
Some amino acids do not have codons.
Rate this question:
AUCG
TAGC
UAGC
CGAU
Rate this question:
DNA nucleotide bases.
RRNA nucleotide bases.
MRNA nucleotide bases.
TRNA nucleotide bases.
Rate this question:
The protein coat from pathogenic cells was able to transform nonpathogenic cells.
Heat-killed pathogenic cells caused pneumonia.
Some substance from pathogenic cells was transferred to nonpathogenic cells, making them pathogenic.
The polysaccharide coat of bacteria caused pneumonia.
Bacteriophages injected DNA into bacteria.
Rate this question:
Option 1
Option 2
Option 3
Option 4
The origins of replication occur only at the 5' end.
Helicases and single-strand binding proteins work at the 5' end.
DNA polymerase can hoin new nucleotides only to the 3' end of a growing strand.
DNA ligase works only in the 3' to 5' direction.
Polymerase can work on only one strand at a time.
Rate this question:
A = G
A + G = C + T
A + T = G + T
A = C
G = T
Rate this question:
Progresses away from the replication fork.
Occurs in the 3' to 5' direction.
Produces Okazaki fragments.
Depends on the action of DNA polymerase.
Does not require a template strand.
Rate this question:
Polymerase molecules.
Ribosomes.
Histones.
A thymine dimer.
Satellite DNA.
Rate this question:
The two DNA strands have completely separated and exposed the promoter.
Several transcription factors have bound to the promoter.
The 5' caps are removed from the mRNA.
The DNA introns are removed from the template.
DNA nucleases have isolated the transcription unit.
Rate this question:
It consists of three nucleotides.
It may code for the same amino acid as another codon.
It never codes for more than one amino acid.
It extends from one end of a tRNA molecule.
It is the basic unit of the genetic code.
Rate this question:
Complementary to the corresponding mRNA codon.
Complementary to the corresponding triplet in rRNA.
The part of tRNA that bonds to a specific amino acid.
Changeable, depending on the amino acid that attaches to the tRNA.
Catalytic, making the tRNA a ribozyme.
Rate this question:
Exons are cut out before mRNA leaves the nucleus.
Nucleotides may be added at both ends of the RNA.
Ribozymes may function in RNA splicing.
RNA splicing can be catalyzed by spliceosomes.
A primary transcript is often much longer than the final RNA molecule that leaves the nucleus.
Rate this question:
A nucleotide-pair substitution.
A deletion of three nucleotides near the middle of a gene.
A single nucleotide deletion in the middle of an intron.
A single nucleotide deletion near the end of the coding sequence.
A single nucleotide insertion downstream of, and close to, the start of the coding sequence.
Rate this question:
5 5' capping with methylated guanines.
The addition of a 3' poly-adenine tail.
The excision of introns from mRNA via spliceosome formation.
MRNA attachment to polyribosomes.
Rate this question:
Several structural genes that express proteins with similar function.
One or more structural genes, a promoter, an operator, and a terminator.
Incorporated DNA from plasmids.
Viral DNA from infection and reverse transription.
Rate this question:
Inversion
Deletion
Addition
Substitution
Rate this question:
Ionic bonds
Hydrogen bonds
Polar covalent bonds
Hydrophobic interactions
Rate this question:
Smaller.
Negative.
Positive.
Isoelectrically neutral.
Rate this question:
Quiz Review Timeline (Updated): Mar 21, 2023 +
Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.