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BIO 340 Exam 1 - ASU – Gile -questions with answers
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BIO 340 Exam 1 - ASU – Gile -questions with answers
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BIO 340 Exam 1 - ASU – Gile -questionswith answers
a nucleotide is made up of... - .......ANSWERS 🔷🖊✔✔- 1 nitrogenous base (adenine,
thymine, cytosine, or guanine)
- 1 five-carbon sugar (deoxyribose in DNA)
- 1 (or more) phosphate group(s)
True or False?
DNA is semi-conservative and bidirectional. - .......ANSWERS 🔷🖊✔✔True
True or False?
Pyrimidines and purines serve as a form energy for cells. - .......ANSWERS 🔷🖊
✔✔True
The following bases are pyrimidines: - .......ANSWERS 🔷🖊✔✔Cytosine (C), Uracil
(U), and Thymine (T)
An easy way to remember this could be the word: CUT
The following bases are purines: - .......ANSWERS 🔷🖊✔✔Adenine (A), Guanine (G)
An easy way to remember this could be the saying: (P)ure (A)s (G)old
The Deoxyribose Carbon Atom Numbering System is as follows: - .......ANSWERS
🔷🖊✔✔1' is the carbon attached to the nitrogenous base
, 2' is the "deoxy" carbon - only hydrogrens attached
3' carries the hydroxyl group (OH)
4' binds to O which binds to 1 to make the ring
5' carries the phosphate group
What are multiple nucleotides linked together by? - .......ANSWERS 🔷🖊
✔✔Phosphodiester Bonds
What are the two polar ends of DNA? - .......ANSWERS 🔷🖊✔✔3' (three prime) and
5' (five prime)
True or False?
DNA strands are not antiparallel - .......ANSWERS 🔷🖊✔✔False, DNA strands are
antiparallel
True or False?
One strand of DNA is a reverse complement of the other - .......ANSWERS 🔷🖊
✔✔True
What base does the Thymine bind to? - .......ANSWERS 🔷🖊✔✔Adenine
How many hydrogen bonds are between Adenine and Thymine? - .......ANSWERS
🔷🖊✔✔2 hydrogen bonds
What base does Cytosine bind to? - .......ANSWERS 🔷🖊✔✔Guanine
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