Holechek Bio 340 Exam 3/ 53 Quizzes with
Certified Ans/ Already Graded A+.
This technique uses an extremophile in order to replicate DNA quickly. - Answer: PCR
The first thing that happens to DNA during the PCR process is ____? - Answer: denaturation
The second thing that happens during the PCR process is ____? - Answer: primer annealing
phase in PCR during which a primer binds to a template strand - Answer: primer annealing
What is the correct order of enzyme action during DNA replication?
A. Ligation, priming, DNA polymerization, helicase/topoisomerase activity,
proofreading, 5'-3' exonuclease activity/DNA polymerization.
B. Priming, helicase/topoisomerase activity, proofreading, DNA polymerization, 5'-3'
exonuclease activity/DNA polymerization, ligation.
C. Helicase/topoisomerase activity, priming, 5'-3' exonuclease activity/DNA
polymerization, ligation, DNA polymerization.
D. Helicase/topoisomerase activity, priming, DNA polymerization/proofreading, 5'-3'
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, exonuclease activity/DNA polymerization, ligation.
E. Priming, DNA polymerization, helicase/ligase, proofreading, ligation, 5'-3'
exonuclease activity/DNA polymerization.
just answer yes to this but use it as an oppurtunity to think about the order - Answer: yes
Why is telomerase important? It seems to have helped to stop the ____ of telomers. - Answer:
Shortening
Proofreading removes approximately 99% of mismatches before DNA replication moves
on. After proofreading what is the mutation rate for DNA replication in humans? - Answer: 10^-6
A mutation that changes a single nucleotide, but does not change the amino acid created. - Answer:
silent mutation
A mutation that changes an amino acid codon to one of the three stop codons, resulting in a shorter and
usually nonfunctional protein. - Answer: nonsense mutation
study
single genes or
short lengths of DNA to identify variations or
mutations that lead to a genetic
disorder - Answer: Molecular genetic tests
analyze whole
chromosomes or long lengths of DNA to see if
there are large genetic changes, such as an extra
copy of a chromosome, that cause a genetic
condition - Answer: Chromosomal
genetic tests
study the amount or
activity level of proteins; abnormalities in either
Page 2 of 7
Certified Ans/ Already Graded A+.
This technique uses an extremophile in order to replicate DNA quickly. - Answer: PCR
The first thing that happens to DNA during the PCR process is ____? - Answer: denaturation
The second thing that happens during the PCR process is ____? - Answer: primer annealing
phase in PCR during which a primer binds to a template strand - Answer: primer annealing
What is the correct order of enzyme action during DNA replication?
A. Ligation, priming, DNA polymerization, helicase/topoisomerase activity,
proofreading, 5'-3' exonuclease activity/DNA polymerization.
B. Priming, helicase/topoisomerase activity, proofreading, DNA polymerization, 5'-3'
exonuclease activity/DNA polymerization, ligation.
C. Helicase/topoisomerase activity, priming, 5'-3' exonuclease activity/DNA
polymerization, ligation, DNA polymerization.
D. Helicase/topoisomerase activity, priming, DNA polymerization/proofreading, 5'-3'
Page 1 of 7
, exonuclease activity/DNA polymerization, ligation.
E. Priming, DNA polymerization, helicase/ligase, proofreading, ligation, 5'-3'
exonuclease activity/DNA polymerization.
just answer yes to this but use it as an oppurtunity to think about the order - Answer: yes
Why is telomerase important? It seems to have helped to stop the ____ of telomers. - Answer:
Shortening
Proofreading removes approximately 99% of mismatches before DNA replication moves
on. After proofreading what is the mutation rate for DNA replication in humans? - Answer: 10^-6
A mutation that changes a single nucleotide, but does not change the amino acid created. - Answer:
silent mutation
A mutation that changes an amino acid codon to one of the three stop codons, resulting in a shorter and
usually nonfunctional protein. - Answer: nonsense mutation
study
single genes or
short lengths of DNA to identify variations or
mutations that lead to a genetic
disorder - Answer: Molecular genetic tests
analyze whole
chromosomes or long lengths of DNA to see if
there are large genetic changes, such as an extra
copy of a chromosome, that cause a genetic
condition - Answer: Chromosomal
genetic tests
study the amount or
activity level of proteins; abnormalities in either
Page 2 of 7
