EASY
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IMPORTANT
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Identify the correct arrangement of different genes in Lac operon from the following.

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Important Questions on Molecular Basis of Inheritance

MEDIUM
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IMPORTANT
Identify the incorrect phenomenon expressed by a bacterium grown in a medium lacking lactose.
I) Initiates beta-galactosidase activity
II) Bacteria does not produce galactose and glucose
III) Promotor site of transcription unit acts as a repressor
HARD
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IMPORTANT

Assertion (A): Between DNA and RNA, DNA is a better genetic material.

Reason (R): 2' -OH group present in every nucleotide in RNA is a reactive group and make RNA labile and easily degradable.

The correct answer is:

MEDIUM
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IMPORTANT
DNA is _________ charged and is usually held with some proteins which are _______ charged in a region termed as ______.
(A) Positively
(B) Negatively
(C) Loops
(D) Genophore
(E) Nucleosome
EASY
TS EAMCET
IMPORTANT
Choose correct statements among the following.
A) H1 Histone molecule lies outside nucleosome and seals.
B) Negatively charged DNA and positively charged histones allows packaging of DNA.
C) Each nucleosome has 6 histone molecular and 145 nucleotides pairs of DNA.
D) The DNA between two successive nucleosomes is called linker DNA,