To login with Google, please enable popups
Forgot your password?
Don’t have an account? Sign up
To signup with Google, please enable popups
Sign up with Google or Facebook
To sign up you must be 13 or older. Other people won’t see your birthday.
By signing up I agree to StudyBlue's
Already have an account? Log in
Express the sequence of amino acids using the three-letter abbreviations, separated by hyphens (e.g., Met-Ser-Thr-Lys-Gly).
DNA polymerase is very accurate and rarely makes a mistake in DNA replication. Occasionally, however, an error in replication, known as a point mutation, is introduced. There are two general categories of point mutations—frameshift mutations (also called base-pair insertions or base-pair deletions) and base substitution mutations (shown in the diagram). If a segment of DNA were replicated without any errors, the replicated strand would have the following sequence of nucleotides: 5' - ACTACGTGA - 3'
Sort the following replicated DNA sequences by the type of point mutation each contains (frameshift, base substitution, or neither), as compared to the correct sequence shown above. Sort the items into the appropriate bins.
When a base substitution mutation occurs, one nucleotide in a replicating DNA sequence is substituted for another, which results in the production of a mutant strand of DNA...Label the four mutated DNA segments shown below according to the type of point mutation each represents. Use the codon table above to determine how each mutation would affect the amino acid coding for each segment.
Drag the labels to their appropriate locations to identify the type of point mutation shown.
What is the likely effect of a silent mutation on an organism?
Translation occurs in the _____.
Which of these is a tRNA?
Mechanism of DNA replication
Difference between oogenesis and spermatogenesis
Which of the following statements about transcription is correct?
How is a mutation in a bacterial cell that deletes three base pairs 10 base pairs upstream from the +1 site likely to affect transcription and why?
Why are ribonucleoside triphosphates the monomers required for RNA synthesis rather than ribonucleoside monophosphates?
During transcription, in which direction is (1) RNA synthesized and in which direction is (2) the DNA template "read"?
A promoter is ______.
What is the process called that converts the genetic information stored in DNA to an RNA copy?
DNA does not store the information to synthesize which of the following?
Transcription begins at a promoter. What is a promoter?
Which of the following statements best describes the promoter of a protein-coding gene?
What determines which base is to be added to an RNA strand during transcription?
Which of the following terms best describes the relationship between the newly synthesized RNA molecule and the DNA template strand?
What happens to RNA polymerase II after it has completed transcription of a gene?
In the diagram below, the gray unit represents _____.
In the diagram below, the green unit represents _____.
In the diagram below, the two blue strands represent _____.
Which of these correctly illustrates the pairing of DNA and RNA nucleotides?
The direction of synthesis of an RNA transcript is _____.
The micrograph in Figure 17.5a shows a DNA-mRNA hybrid. If the noncoding regions of the gene did not exist, what would the micrograph look like?
The following eukaryotic structural gene contains two introns and three exons. The table below shows four possible mRNA products of this gene. Use the labels to explain what mutation(s) may have resulted in each mRNA. Drag the correct label to each location in the table. Labels may be used once, more than once, or not at all.
Suppose that a portion of double-stranded DNA in the middle of a large gene is being transcribed by an RNA polymerase. As the polymerase moves through the sequence of six bases shown in the diagram below, what is the corresponding sequence of bases in the RNA that is produced? Enter the sequence of bases as capital letters with no spaces and no punctuation. Begin with the first base added to the growing RNA strand, and end with the last base added.
During transcription in eukaryotes, a type of RNA polymerase called RNA polymerase II moves along the template strand of the DNA in the 3'→5' direction. However, for any given gene, either strand of the double-stranded DNA may function as the template strand. For any given gene, what ultimately determines which DNA strand serves as the template strand?
After transcription begins, several steps must be completed before the fully processed mRNA is ready to be used as a template for protein synthesis on the ribosomes. Which three statements correctly describe the processing that takes place before a mature mRNA exits the nucleus?
5' caps and 3' poly(A) tails of eukaryotic mRNAs ______.
Which statement is most accurate concerning the function(s) of the 5' cap and the 3' poly(A) tail of eukaryotic mRNAs?
During RNA processing a(n) _____ is added to the 5' end of the RNA.
During RNA processing a(n) _____ is added to the 3' end of the RNA.
Spliceosomes are composed of _____.
The RNA segments joined to one another by spliceosomes are _____.
What name is given to the process in which a strand of DNA is used as a template for the manufacture of a strand of pre-mRNA?
What name is given to the process in which the information encoded in a strand of mRNA is used to construct a protein?
What name is given to the process in which pre-mRNA is edited into mRNA?
Polypeptides are assembled from _____.