f an error is made during replication that is not caught by DNA polymerase, the most likely is that _____. a. DNA ligase will repair the mistake before a mutation occurs b. only the daughter strand will be mutated c. both strands of DNA will be mutated d. DNA replication will stall indefinitely e. a mutation that causes cancer will occur

f an error is made during replication that is not caught by DNA polymerase, the most likely is that _____. a. DNA ligase will repair the mistake before a mutation occurs b. only the daughter strand will be mutated c. both strands of DNA will be mutated d. DNA replication will stall indefinitely e. a mutation that causes cancer will occur

Biology Today and Tomorrow without Physiology (MindTap Course List)

5th Edition

ISBN:9781305117396

Author:Cecie Starr, Christine Evers, Lisa Starr

Publisher:Cecie Starr, Christine Evers, Lisa Starr

Chapter6: Dna Structure And Function

Section: Chapter Questions

Problem 11SQ: Energy that drives the attachment of a nucleotide to the end of a growing strand of DNA comes from...

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DNA replication is described as semi-conservative because _____. A. one leading strand and one lagging strand are produced in DNA replication B. all new DNA strands are synthesized continuously C. one new DNA strand is synthesized discontinuously D. DNA replication can never produce DNA molecules which consist of both original DNA stands E. one DNA strand is the template while the complementary strand is not
Repair enzymes _____. a. repair only mutations that occur in mitochondrial DNA b. can only repair mutations that occur prior to replication c. can only repair mutations that occur after replication d. repair only DNA mismatch mutations e. repair only mutations that arise during replication
DNA polymerases ____. a. add new nucleotides to a strand b. repair DNA c. assemble new strands in both direction d. seal gaps in the sugar-phosphate backbone e. catalyze carbon bonding
DNA polymerase δ: DNA polymerase III as ________ a. Helicase: RPA b. DNA ligase: DNA polymerase I c. DNA polymerase alpha: primase d. DNA polymerase I: FEN-1/RNAse H
In order for DNA molecules to undergo recombination, ____. a. their strands must separate as in replication b. they must be from the same species c. one of the two DNA strands must be degraded d. they must be cut and spliced at specific nucleotide sequences e. they must first be transcribed
The phrase “5 prime to 3 prime” refers to the_______ . a. timing of DNA replication b. directionality of DNA synthesis c. number of phosphate groups
In DNA replication, a primer is _____. a. what the original DNA strands are called b. a molecule that provides the energy for nucleotide attachments c. a regulatory protein that turns on the gene that starts DNA replication d. an enzyme that breaks the hydrogen bonds between base pairs e. a short piece of nucleic acid that serves as an attachment point for DNA polymerase
The most common source of DNA mutation is _____; however, these mistakes are typically corrected. a. errors in DNA replication b. UV light c. cigarette smoke d. errors in protein synthesis e. pesticides on the food we eat
Which of the following statements is NOT TRUE about genomic DNA replication? O A DNA replication begins at the origin of replication and proceeds bi-directionally O B. New nucleotides can be added by the DNA polymerase only to the 3 end of the growing strand O. Synthesis of new DNA is catalyzed by the enzymes called DNA polymerases OD. DNA replication is semi-conservative OE. DNA replication proceeds continuously on both parental DNA strands.
Just prior to DNA replication the cytosine in the sequence GTTCATTG is deaminated and it is not repaired before the DNA is replicated. Which of the following is the point mutation you expect in this sequence after the segment has undergone 2 rounds of DNA replication? a. GTTUATTG O b. GTTTATTG C. GTTGATTG d. GGTAATTG e. GTTAATTG
If a DNA strand has the sequence ATGCGATCCGC thenthe sequence on the complementary DNA strand is _____.a. ATGCGATCCGCb. TACGCTAGGCGc. UACGCUAGGCGd. AUGCGAUCCGC
when a cell to divide, its DNA must be replicated (copied). a.List the most important participating components and their functions in replication b.why is it important that the replication goes right and that relatively few mutations occur during the replication? c.Will the offspring of the individual who received a mutation inherit the mutation