which of the following events occurs during transcription?

which of the following events occurs during transcription?


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Asked by 2 years ago
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Which of the following build(s) new strands of DNA?DNA polymerases
Which statement about DNA replication is CORRECT?The leading strand is built continuously, and the lagging strand is built in pieces.
During DNA replication, which nucleotide will bind to an A nucleotide in the parental DNA?T
The molecule that seals the gaps between the pieces of DNA in the lagging strand isDNA ligase
Which statement about DNA replication is FALSE?DNA ligase adds nucleotides to the lagging strand.
Which of the following terms associated with transcription describe regions of nucleic acid?gene, prometer, terminator
Which of the following events occurs during transcription?A molecule of RNA is formed based on the sequence of nucleotides in DNA.
Which of the following is a correct statement about mRNA?mRNA moves from the nucleus to the cytoplasm following RNA processing.
The site of translation isribosomes in the cell cytoplasm.
Which one of the following does not play a role in translation?DNA
Which of the following does not occur during RNA processing?mRNA attaches to the small subunit of a ribosome.
Although generally not considered to be alive, a _____ is studied alongside other microbes such as bacteria.virus
The protein coat that surrounds the nucleic acid of a virus is called a ______.caspid
The ___________ is a viral life cycle that results in bursting of the host cell.lytic cycle
The _______________ is a viral life cycle in which the virus inserts its genome into the genome of its host, where it may remain dormant for long periods.lysogenic cycle
A ________ is a viral genome that has inserted itself into the genome of its host.prophage
A _____________ is a virus that specifically infects bacteria.bacteriophage
Hershey and Chase's experiment allowed them to discern whether DNA or proteins contain genetic information because __________.viruses consist only of proteins and DNA and only the DNA was injected into the host cells
Frederick Griffith was one of the leading scientists looking at the genetic role of DNA. He was working on two strains of Streptococcus pneumoniae: The rough strain (R) did not cause pneumonia, but the smooth strain (S) did. When Griffith heat-killed the S strain and gave both the heat-killed S strain and the R strain to mice, the mice developed pneumonia and died. What happened in this experiment that caused the mice to develop pneumonia?Even though the S strain had been heat-killed, it changed the R strain.
In an important experiment, radioactively labeled bacteriophages were allowed to infect bacteria. In the first trial, the phages contained radioactive DNA, and radioactivity was detected in the bacteria. Next, other phages containing radioactive protein were allowed to infect bacteria, and radioactivity was not detected in the bacteria. These experiments led to the conclusion that _____.the genes of this phage were made of DNA
A uracil nucleotide is a __________ nitrogenous base attached to the __________, with the 5 carbon of the sugar attached to a phosphate group.one-ringed : carbon of a sugar that has an OH group at the 2 carbon
The four bases contained in DNA are _____.adenine, guanine, cytosine, thymine
Which of the following describes a complete nucleotide?a nitrogenous base, a sugar, and a phosphate group
Which of the following is only associated with RNA?uracil
Which of the following techniques were most helpful to Watson and Crick in determining the structure of DNA?X-ray crystallography
The two strands of a DNA molecule are joined to each other through _____.hydrogen bonds between nucleotide bases
Which of the following statements is true about double-stranded DNA?The strands run in opposite directions.
During DNA replication, _____.each parental strand serves as a template for the synthesis of a complementary strand
Monomers for the synthesis of DNA are called __________.nucleotides
During the replication of DNA molecules, __________.both strands of the parent molecule act as templates
Two new strands of DNA molecules grow as bases are added by the enzyme _____.DNA polymerase
What enzyme joins DNA fragments?DNA ligase
Prokaryotic organisms have a single origin of replication, whereas eukaryotic organisms have many origins where replication occurs simultaneously. Which of the following is the most probable reason for this observation?Prokaryotic DNA is much smaller than eukaryotic DNA.
Which of the following occurs during DNA replication?DNA polymerase elongates the daughter strand, adding new nucleotides to the 3 end of the molecule. The molecule grows 5 to 3 but is therefore read 3 to 5.
Which of the following people conducted the experiments that demonstrated that DNA is the genetic material of bacteriophages?Hershey and Chase
One type of virus that infects bacteria is called aphage
When a T2 bacteriophage infects an Escherichia coli cell, which part of the phage enters the bacterial cytoplasm?only the DNA
The way that genetic material of a bacteriophage enters a bacterium is most like the way thata drug is injected with a hypodermic needle.
The monomers of DNA and RNA arenucleotides
DNA repilcationuses each strand of a DNA molecule as a template for the creation of a new strand.
Which of the following statements regarding DNA is false?DNA uses the nitrogenous base uracil.
If one strand of DNA is CGGTAC, then the corresponding strand would beGCCATG.
The copying mechanism of DNA is most liketaking a picture of yourself and of your reflection in a mirror.
Which of the following statements regarding RNA is false?RNA uses the sugar dextrose
How would the shape of a DNA molecule change if adenine paired with guanine and cytosine paired with thymine?The DNA molecule would have irregular widths along its length.
When one DNA molecule is copied to make two DNA molecules, the new DNA contains50% of the parent DNA
Multiple origins of replication on the DNA molecules of eukaryotic cells serve toshorten the time necessary for DNA replication.
Which of the following statements regarding the structure of DNA is false?The sequence of nucleotides along the length of a single DNA strand is restricted by the base-pairing rules.
Which of the following enzymes catalyzes the elongation of a new DNA strand?DNA polymerase
The shape of a DNA molecule is most likea twisted rope ladder.
Which of the following statements regarding a DNA double helix is true?The amount of adenine is equal to the amount of thymine, and the amount of guanine is equal to the amount of cytosine.
Why does a DNA strand grow only in the 5' to 3' direction?because DNA polymerases can only add nucleotides to the 3' end of the growing molecule
Which of the following options best depicts the flow of information when a gene directs the synthesis of a cellular component?DNA RNA protein
The transfer of genetic information from DNA to RNA is calledtranscription
The "one gene-one polypeptide" theory states thatthe function of an individual gene is to dictate the production of a specific polypeptide.
Experiments have demonstrated that the "words" of the genetic code (the units that specify amino acids) arethree-nucleotide sequences.
The directions for each amino acid in a polypeptide are indicated by a codon that consists of ________ nucleotides in an RNA molecule.three
We would expect that a 15-nucleotide sequence that includes a stop codon at the end (as part of the 15-nucleotide sequence) will direct the production of a polypeptide that consists offour amino acids.
In the genetic code,many amino acids are specified by more than one codon.
Which of the following enzymes catalyzes the production of a strand of RNA from DNA?RNA polymerase
Which of the following occurs when RNA polymerase attaches to the promoter DNA?initiation of a new RNA molecule
________ marks the end of a gene and causes transcription to stop.A terminator
Which of the following takes place during translation?the conversion of genetic information from the language of nucleic acids to the language of proteins
Which of the following is a function of a tRNA molecule?joining to only one specific type of amino acid
Considering only the steps that take place during translation, which of the following is not needed in order for translation to occur?DNA template
Which of the following statements about ribosomes is false?The ribosomes of prokaryotes and eukaryotes are the exactly the same in structure and function.
Which of the following statements is false?The start codon can be different depending on what kind of protein is to be translated.
Which of the following options most accurately lists the sequence of events in translation?codon recognition peptide bond formation translocation termination
Which of the following statements regarding the flow of genetic information is false?Transcription occurs in the cytoplasm of eukaryotic cells.
What is the transcription product of the sequence GCTAGCGATGAC?CGAUCGCUACUG
A eukaryotic cell has a nuclear envelope that allows tRNA molecules, but not mRNA molecules, to leave the nucleus. Which of the following processes will not be able to take place in this cell?tRNAs binding to codons
Below are three statements. Which of the following choices properly matches the statements with the correct biological processes? I. This occurs in the nucleus of eukaryotic cells. II. Transfer RNAs bind amino acids in the cytoplasm. III. A polymerase enzyme is required.I: replication; II: translation; III: transcription
It is possible to synthesize proteins in vitro (in a test tube) without the use of living cells. If starting from a mature mRNA transcript, which of the following components would not be needed to do this?adenine molecules
You are interested in designing an experiment to test the hypothesis that frogs use the same genetic code as humans. Which of the following experiments would not give you useful data to test this hypothesis?Compare nucleotide sequences of promoters from similar frog and human genes.
Any change in the nucleotide sequence of DNA is calleda mutation.
A physical or chemical agent that changes the nucleotide sequence of DNA is called a(n)mutagen.
Consider the following sentence: "The dog did not eat." Which of the following variations of this sentence is most like a base substitution mutation?The doe did not eat.
A single base mutation occurs in a gene that codes for a protein due to an error in DNA replication. Which of the following outcomes would possibly not occur?The mutation may result in mRNA being made from the protein.
Normal genes have a promoter followed by a start codon. In a mutant gene, the "A" in the start codon has been deleted. Which of the following is not a possible outcome?The normal protein will be produced.
Consider the following sentence: "The dog did not eat." Which of the following variations of this sentence is most like a frameshift mutation?The dod idn ote at.
A protein coat enclosing a viral genome is known as a(n)capsid
Which of the following statements characterizes the lytic cycle of a viral infection?The cycle typically leads to the lysis of the host cell.
Which of the following statements is false?The lysogenic cycle typically results in the rapid lysis of all infected cells.
Viral DNA incorporated into host cell DNA is known as a(n)prophage
The envelope of a mumps virushelps the virus enter the cell.
Which of the following statements about herpesviruses is false?Herpesviruses reproduce inside the host cell's mitochondria.
Which of the following statements about plant viruses is false?There are many successful ways to rid infected plants of a virus.
Which of the following statements regarding viral diseases is false?Very few new human diseases have originated in other animals because the genetic differences are too great.
The 2009 H1N1 flu virusevolved through the genetic reshuffling of viruses that infect humans, birds, and pigs.
How do retroviruses such as HIV differ from other viruses?They contain the enzyme reverse transcriptase.
Reverse transcription, carried out by retroviruses, is the process by which _____.RNA information is copied into DNA
which of
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