HARD
12th CBSE
IMPORTANT
Earn 100

Describe how the Lac operon operates both in the presence and absence of an inducer in E.coli.

Important Questions on Molecular Basis of Inheritance

HARD
12th CBSE
IMPORTANT
TRUEMAN'S ELEMENTARY Biology VOL. II For XII Class of 10+2>Chapter 6 - Molecular Basis of Inheritance>TEST QUESTIONS>Q 9
Describe Meselson and Stahl's experiments that were carried in 1958 on E.coli. Write the conclusion they arrived at after the experiment.
HARD
12th CBSE
IMPORTANT
TRUEMAN'S ELEMENTARY Biology VOL. II For XII Class of 10+2>Chapter 6 - Molecular Basis of Inheritance>TEST QUESTIONS>Q 10
Describe the process of transcription in bacteria.
HARD
12th CBSE
IMPORTANT
TRUEMAN'S ELEMENTARY Biology VOL. II For XII Class of 10+2>Chapter 6 - Molecular Basis of Inheritance>TEST QUESTIONS>Q 10
Explain the process that hnRNA needs to undergo before becoming functional mRNA in eukaryotes.
HARD
12th CBSE
IMPORTANT
TRUEMAN'S ELEMENTARY Biology VOL. II For XII Class of 10+2>Chapter 6 - Molecular Basis of Inheritance>TEST QUESTIONS>Q 11
Describe the series of experiments by F. Griffith. Comment on the significance of the results obtained.
HARD
12th CBSE
IMPORTANT
TRUEMAN'S ELEMENTARY Biology VOL. II For XII Class of 10+2>Chapter 6 - Molecular Basis of Inheritance>TEST QUESTIONS>Q 11
State the contribution of MacLeod, McCarty and Avery.
EASY
12th CBSE
IMPORTANT
TRUEMAN'S ELEMENTARY Biology VOL. II For XII Class of 10+2>Chapter 6 - Molecular Basis of Inheritance>TEST QUESTIONS>Q 12
Name the stage in the cell cycle where DNA replication occurs. (S phase/G1 phase/M phase)
HARD
12th CBSE
IMPORTANT
TRUEMAN'S ELEMENTARY Biology VOL. II For XII Class of 10+2>Chapter 6 - Molecular Basis of Inheritance>TEST QUESTIONS>Q 12
Explain the mechanism of DNA replication. Highlight the role of enzymes in the process.
MEDIUM
12th CBSE
IMPORTANT
TRUEMAN'S ELEMENTARY Biology VOL. II For XII Class of 10+2>Chapter 6 - Molecular Basis of Inheritance>TEST QUESTIONS>Q 12
Why is DNA replication said to be semiconservative?