Molecular Basis of Inheritance class 12 biology chapter 4 Exercise solutions

Molecular Basis of Inheritance class 12 biology chapter 4 Exercise solutions

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12th standard |New syllabus | Biology ch. 4 Molecular basis of inheritance exercise
12th biology ch-4 molecular basis of inheritance complete exercise | Maharashtra board new syllabus
12th biology ch-4 molecular basis of inheritance complete exercise | Maharashtra board new syllabus
Exercise solution || molecular basis of inheritance class12 New syllabus
exercise ch-4 molecular basis of inheritance class 12 biology science HSC board new syllabus
biology class 12 chapter 3 exercise
molecular basis of inheritance class 12
Q. 1 Multiple Choice Questions
1. Griffith worked on .............
a. Bacteriophage b. Drosophila
c. Frog eggs c. Streptococci
2. The molecular knives of DNA are
…………..Molecular Basis of Inheritance class 12 biology chapter 4 Exercise solutions

a. Ligases b. Polymerases
c. Endonucleases d. Transcriptase
3. Translation occurs in the ...............
a. Nucleus b. Cytoplasm
c. Nucleolus d. Lysosomes
4. The enzyme required for transcription is
..................
solutions made easy

a. DNA polymerase
b. RNA polymerase
c. Restriction enzyme
d. RNAase
5. Transcription is the transfer of genetic
information from ..............
a. DNA to RNA
b. tRNA to mRNA
c. DNA to mRNA
d. mRNA to tRNA
6. Which of the following is NOT part of
protein synthesis?
a. Replication b. Translation
c. Transcription d. All of these
7. In the RNA molecule, which nitrogen
base is found in place of thymine?
a. Guanine b. Cytosine
c. Thymine d. Uracil
8. How many codons are needed to specify
three amino acid?
a. 3 b. 6

solutions made easy
c. 9 d. 12
9. Which out of the following is NOT an
example of inducible operon?
a. Lactose operon
b. Histidine operon
c. Arabinose operon
d. Tryptophan operon
10. Place the following event of translation
in the correct sequence
i. Binding of met-tRNA to the start
codon.
ii. Covalent bonding between two
amino acids.
iii. Binding of second tRNA.
iv. Joining of small and large ribosome
subunits.
A. iii, iv, i, ii B. i, iv, iii, ii
C. iv, iii, ii, i D. ii, iii, iv, i
Q. 2 Very Short Answer Questions:
1. What is the function of an RNA primer
during protein synthesis?
2. Why the genetic code is considered as
commaless?
3. What is genome?
4. Which enzyme does remove supercoils
from replicating DNA?
5. Why are Okazaki fragments formed
on lagging strand only?
6. When does DNA replication take
place?
7. Define term- codon and codogen.
8. What is degeneracy of genetic code?
9. Which are the nucleosomal 'core'
histones?
Q. 3 Short Answer Questions:
1. Write short note on DNA packaging
in eukaryotic cell.
2. Enlist the characteristics of genetic
code.
3. Write a note on applications of DNA
finger printing.
4. Explain the role of lactose in ‘Lac
Operon’.
Q. 4 Short Answer Questions:
1. Write a note on Human genome
project (HGP).

Molecular Basis of Inheritance EXERCISE SOLUTIONS : 12th Biology Chapter 4 : Maharashtra Board