Question
People who suffer from night blindness cannot see well at night because their retinal cells produce an abnormal form of a protein pigment. Which protein is this?
A. Fibrin
B. Myosin
C. Rhodopsin
D. Immunoglobulin
Answer/Explanation
Ans: C
Question
What is the minimum number of nucleotides needed to code for a polypeptide composed of 210 amino acids?
A. 70
B. 210
C. 420
D. 630
Answer/Explanation
Ans: D
Question
Which reaction occurs when a dipeptide is formed from amino acids?
A. Hydrolysis
B. Condensation
C. Transcription
D. Oxidation
Answer/Explanation
Ans: B
Question
The diagrams show the structure of leucine, an essential amino acid. Which diagram highlights the part of leucine that distinguishes it from other amino acids?
▶️Answer/Explanation
B