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DNA Structure
Test Description: DNA Structure
Instructions: Answer all questions to get your test result.
1) Which nitrogenous bases form a stronger bond?
A
G and C with 3 hydrogen bonds
B
A and T with 2 hydrogen bonds
C
A and T with 3 hydrogen bonds
2) What are the 4 types of nucleotides found in DNA?
A
A, T, C, G
B
A, U, R , Q
3) The nitrogenous bases attach to
A
phosphate
B
sugars
4) What type of bond holds the nitrogenous bases together?
A
nitrogen
B
carbon
C
oxygen
D
hydrogen
5) DNA is only found where?
A
the nucleus
B
outside of the nucelus
6) The 5' end of a piece of DNA is found by a
A
phosphate
B
sugar
7) The 3' end of a piece of DNA is found by a
A
phosphate
B
sugar
8) Antiparallel means that strands of DNA are
A
identical on both sides
B
run in opposite directions
9) The shape of DNA is a
A
double helix
B
triple helix
10) RNA can be found
A
only in the nucleus
B
outside of the nucleus
*select an answer for all questions
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