Ch. 1
1. Which of the three following divisions of the field of genetics applies to a study of
pedigrees to follow the inheritance of a particular trait?
A. Population genetics
B. Molecular genetics
C. *Transmission genetics
D. Both A and B
E. None of the above
Explanation: question 2
2. Define:
Population genetics: pg. 5
Transmission genetics: pg. 5
Molecular genetics: pg. 5
Ch. 10
3. The figure shows the base adenine with partial positive charges and partial
negative charges on specific atoms indicated. Of the choices in the lower part of the
figure, which molecule(s) form base pairs with adenine bases in B-form double
stranded nucleic acids?
A. Molecule B
B. Molecule C
C. *Molecule D
D. Molecule E
E. both molecules C and D
* C-Uracil: forms single stranded (ss) RNA (pg. 287)
*D-Thymine: forms in DNA (pg. 287) which has three-dimensional
structures such as B-DNA (pg. 289) or A-DNA (pg. 290).
4. Answer the following for Purines and Pyrimidines:
What is the ring structure?
Purines: 6-member ring attached to a 5-member ring.
Pyrimidines: 6-member ring
What are the bases?
Purines: Adenine and Guanine
Pyrimidine: Cysteine, Thiamine, Uracil
*pg. 286-287
5. Which of the following single-stranded RNA molecules could form a hairpin loop
structure?
A. *5’ – GGGGUUUUCCCC – 3’
B. 5’ – AAAAAAAAAAAA – 3’
C. 5’ – AGAGAGAGAGAG – 3’
D. 5’ – GGGGUUUUGGGG – 3’
E. all of the above, any single stranded RNA sequence can form a hairpin loop
*pg.291; fig. 10.17