Page | 1
UCI BIO 93 MIDTERM 2 EXAM
QUESTIONS AND ANSWERS| ACE
YOUR GRADES.
1. What is the name of the promoter that starts initiation? - correct
answer -TATA box
2. Why does the TATA box have a lot of T's and A's - correct
answer -Because they have fewer hydrogen bonds so easier to
break apart
3. Does the 5' RNA end get a cap or tail? And which type? -
correct answer -Cap. Modified Nucleotide cap
4. What type of bond happens in elongation in translation? -
correct answer -Peptide bonds
5. What are the three stages of interphase? - correct answer -G1,
S, and G2
, Page | 2
6. What happens in the S part of interphase? - correct answer -
DNA is replicated
7. What are the gametes? - correct answer -Sperms and eggs
8. What are sister chromatids? - correct answer -A pair of
duplicated chromosomes
9. What is the centromere? - correct answer -A region where the
chromatids are most likely attached
10. What is mitosis? - correct answer -The division of the genetic
material
11. What is cytokinesis? - correct answer -The division of the
cytoplasm
, Page | 3
12. In which stage of the cell cycle do chromosomes get
replicated? - correct answer -S phase
13. How many chromosomes do human somatic cells contain? -
correct answer -46
14. What two processes happen in the mitotic phase? - correct
answer -Mitosis and Cytokenesis
15. What is a nucleotide-pair substitution? - correct answer -
When one nucleotide pair is substituted with another pair.
16. What is a silent mutation? - correct answer -Have no effect
on amino acid production because of redundancy
17. What is a missense mutation? - correct answer -When an
amino acid is coded, but its the wrong one
UCI BIO 93 MIDTERM 2 EXAM
QUESTIONS AND ANSWERS| ACE
YOUR GRADES.
1. What is the name of the promoter that starts initiation? - correct
answer -TATA box
2. Why does the TATA box have a lot of T's and A's - correct
answer -Because they have fewer hydrogen bonds so easier to
break apart
3. Does the 5' RNA end get a cap or tail? And which type? -
correct answer -Cap. Modified Nucleotide cap
4. What type of bond happens in elongation in translation? -
correct answer -Peptide bonds
5. What are the three stages of interphase? - correct answer -G1,
S, and G2
, Page | 2
6. What happens in the S part of interphase? - correct answer -
DNA is replicated
7. What are the gametes? - correct answer -Sperms and eggs
8. What are sister chromatids? - correct answer -A pair of
duplicated chromosomes
9. What is the centromere? - correct answer -A region where the
chromatids are most likely attached
10. What is mitosis? - correct answer -The division of the genetic
material
11. What is cytokinesis? - correct answer -The division of the
cytoplasm
, Page | 3
12. In which stage of the cell cycle do chromosomes get
replicated? - correct answer -S phase
13. How many chromosomes do human somatic cells contain? -
correct answer -46
14. What two processes happen in the mitotic phase? - correct
answer -Mitosis and Cytokenesis
15. What is a nucleotide-pair substitution? - correct answer -
When one nucleotide pair is substituted with another pair.
16. What is a silent mutation? - correct answer -Have no effect
on amino acid production because of redundancy
17. What is a missense mutation? - correct answer -When an
amino acid is coded, but its the wrong one
