ETHC 210 EXAM 6
Question 1
3 out of 3 points
A mutation is an altered DNA sequence in an organism.
Selected Tru
Answer: e
Question 2
3 out of 3 points
Some genetic diseases like achondroplasia can occur by
spontaneous mutation without a family history of the
disease.
Selected Tru
Answer: e
Question 3
3 out of 3 points
Which of the following is true about the triplet code?
Selected Involves three nucleotides (codons) which specify
Answers: one or more amino acids each
64 different codons can be used to make a
protein made of 20 different amino acids
Question 4
3 out of 3 points
Which of the following is true about mutations?
None of these are correct
answers
Question 5
3 out of 3 points
A tumor is benign if it grows in place but does not
spread.
Selected Tru
Answer: e
, Question 6
3 out of 3 points
Which of the following is true about oncogenes.
Selected They are genes which have a normal function by
Answers: coding for genes that play a role in the cell cycle
but when mutated can cause cancer.
Over 100 oncogenes have been identified
Question 7
3 out of 3 points
The mutation which causes sickle cell disease can be
classified as a point mutation and also a missense
mutation.
Selected Tru
Answer: e
Question 8
3 out of 3 points
Complex DNA repair mechanisms in many organisms is
a challenge to Darwinian evolution because DNA repair
is complex involving many proteins and Darwinian
evolution would need to evolve all of these proteins
simultaneously.
Selected Tru
Answer: e
Question 9
3 out of 3 points
Cancer metastases are difficulty to detect.
Selected Tru
Answer: e
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