CBSE PMT - Biology Multiple Choice Questions with Answers

31 How many nucleosomes are found in helical coil of 30 nm chromatin fibre?
A 10
B 12
C 06
D 09

Answer: Option [C]
32 If the number of chromosomes in most body cells of a mammal is 40, the cells in the seminiferous tubule will have
A 40 chromosomes
B 20 chromosomes
C 10 chromosomes
D While some other will have 20

Answer: Option [D]
33 Balbiani discovered special type of chromosome from the salvary gand of chironomus larva which are recognized by the presence of
A Bands
B Loops
C Both bands and loops
D All of the above

Answer: Option [C]
34 A cistron is
A Structural of gene
B Functional unit of RNA
C Functional unit gene
D Replication unit of gene

Answer: Option [C]
35 Genetic information are carried in the form of long chain of molecules made-up-of
A Amino acids
C Nucleotides
D Polypeptides

Answer: Option [C]

NCERT Class 12 Biology Solved Multiple Choice Questions

Read More Biology Questions


UPSC Biology Questions & Answers

current affairs 2021 pdf plan

Current Affairs MCQs

State-wise Current Affairs

General Knowledge

Month-wise Current Affairs 2021

Category-wise Current Affairs

Jobs by Qualification

Free Mock Test