Biochemistry Exam 1 Exam Questions & Answers (Grade A+).docx

Biochemistry Exam 1 Exam Questions &
Answers (Grade A+)
Approximately what percentage of the human genome encodes for
protein? -
correct answer ✅3%


What pairs of atoms in bases are involved in hydrogen bonds?
A) N-H and O-H
B) N-H and S-H
C) O-H and P-O
D) All of the above
E) None of the above -
correct answer ✅A) N-H and O-H


The structure of DNA described by Watson and Crick included
A) a double helix
B) the sugar phosphate backbone aligned in the center of the helix
C) the base pairs that are stacked on the inside of the double helix
D) A and B
E) A and C -
correct answer ✅E) A and C

, Biochemistry Exam 1 Exam Questions &
Answers (Grade A+)
What two properties of water are important for biological
interactions? -
correct answer ✅The polarity of water
The cohesive properties of water


How many hydrogen bonds are formed between A and T? -
correct answer ✅2


What gives proteins a dominant role in biochemistry? -
correct answer ✅Their ability to spontaneously fold into complex
three-dimensional structures


Which of the following is considered a noncovalent bond?
A) Electrostatic interactions
B) Hydrogen bonds
C) Van der Waals interactions
D) All of the above
E) None of the above -
correct answer ✅D) All of the above