Chapter 6. Chapter 6

Problem-Solving Video Assessment
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Chapter 6 Problem-Solving Video Assessment

Scientists have determined the secondary structure of an RNA fragment conserved in reptile species. The structure is as follows:

Structure of an RNA fragment conserved in reptile species

1.

Which nucleotide is most likely to be found at position X in the reptile species?

A.
B.
C.
D.
E.
_feedback_correct: Correct. _feedback_incorrect: Incorrect.

2.

Which of the following RNA sequences best fits the secondary structure modeled above?

A.
B.
C.
D.
E.
_feedback_correct: Correct. _feedback_incorrect: Incorrect.

The RNA sequences from four related species are shown below. These fragments form a secondary stem-loop structure:
Species 1: AGGUACCUCGUACCAGA
Species 2: UGGAAACACUUUCCGGA
Species 3: UCGUGCCAAGCACGCGU
Species 4: GUCAACCUUGUUGAAUG

3.

Which nucleotide is the first within the stem portion of the stem-loop?

A.
B.
C.
D.
E.
_feedback_correct: Correct. _feedback_incorrect: Incorrect.

4.

Which nucleotide is the first within the loop portion of the stem-loop?

A.
B.
C.
D.
E.
_feedback_correct: Correct. _feedback_incorrect: Incorrect.

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