Question 14 of 40 00 25 points many cancers are often

Question 14 of 40
0.0/ 2.5 Points
Many cancers are often associated with ________


A. deletion

B. duplication

C. translocation

D. transposition

E. inversion
Feedback:Learning Objective: Describe how errors in chromosome structure occur through
inversions and translocations
Question 15 of 40
2.5/ 2.5 Points
What causes RNA polymerase to stall so that the rho protein bumps into it and knocks it off the
DNA?


C. a region rich in A-T nucleotides

D. hairpin loop of G and C nucleotides
Feedback:Learning Objective: Describe how and when transcription is terminated
Question 16 of 40
2.5/ 2.5 Points
A mutation changing an alanine to a glycine would likely have little effect on the protein
function since they are both small, ________, amino acids.

E. polar
Feedback:Correct
Question 17 of 40
0.0/ 2.5 Points
If a human has straight hair or curly hair they are homozygous for that trait. Given an individual
with wavy hair who is heterozygous (meaning they inherited the curly hair trait from one parent,
and the straight hair trait from the other), but are phenotypically wavy-haired, this is an example
of what type of genetic expression?
Feedback:
Incorrect-
Learning Objective Text: Identify non-Mendelian inheritance patterns such as incomplete
dominance, codominance, recessive lethals, multiple alleles, and sex linkage
Question 18 of 40
2.5/ 2.5 Points
Prokaryotes are able to perform transcription and translation at the same time because they lack


A. transcription bubbles

B. ribosomes

C. plasmids

D. a nucleus

E. a plasma membrane
Feedback:Correct
Question 19 of 40
2.5/ 2.5 Points
What is a major difference between DNA polymerase I and DNA polymerase III?

B. DNA polymerase I synthesizes DNA on lagging strands and DNA polymerase III
synthesizes DNA on leading strands

C. DNA polymerase I repairs DNA and DNA polymerase III synthesizes DNA in the 3 ׳
to 5 ׳ direction

D. DNA polymerase I synthesizes DNA in the 5 ׳ to 3 ׳ direction and DNA polymerase III
synthesizes on lagging strands
Feedback:Correct
Question 20 of 40
2.5/ 2.5 Points
Why do bacteria not need telomerase?

D. Bacteria do not go through cell division

E. Bacteria have a similar functioning enzyme
Feedback:Correct