BIOC 3021 EXAM 4 QUESTIONS 2025. Exam Questions and Correct Answers With 100% Correct Answers | Latest 2025 Update.

BIOC 3021 EXAM 4 QUESTIONS AND ANSWERS 2024/2025 | VERIFIED
Which process requires a template?

Select one:

a. DNA replication

b. Transcription of DNA to RNA

c. Translation of RNA to protein

d. Reverse transcription of RNA to DNA

e. All of the above - e. All of the above



Exons are (Select one):

a. Segments of a gene which do not code for a protein

b. Segments of a gene which code for a protein

c. Segments of mRNA that are excised from the message

d. Segments of protein that are inactive

e. Segments of RNA that are components of the ribosome - b. Segments of a gene which code for
a protein



Which type of RNA contains about 75-80 bases?

Select one:

a. mRNA

b. rRNA

c. tRNA

d. zRNA

e. nRNA - c. tRNA



What enzyme complex makes DNA from RNA?

Select one:

a. RNA polymerase

b. DNA polymerase

, c. The Ribozyme

d. DNA ligase

e. reverse transcriptase - e. reverse transcriptase



If the first half of a DNA restriction site has the sequence AACC, what are the next four bases on the
same chain?

Select one:

a. AACC

b. CCAA

c. GGTT

d. TTGG

e. GGAA - c. GGTT



What percentage of the human chromosomal DNA codes for proteins?

Select one:

a. 99%

b. 90%

c. 50%

d. 25%

e. 1-2% - e. 1-2%



DNA replication involves the nucleophilic attack on a nucleotide phosphate by a:

Select one:

a. 1' hydroxyl group of a deoxyribose residue

b. 2' hydroxyl group of a deoxyribose residue

c. 3' hydroxyl group of a deoxyribose residue

d. 4' hydroxyl group of a deoxyribose residue

e. 5' hydroxyl group of a deoxyribose residue - c. 3' hydroxyl group of a deoxyribose residue