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Molecular Basis of Inheritance

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CBSE Gujarat Board Haryana Board

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Class 10 Class 12

Given below is the diagram of a bacteriophage in which one of the options, all the four parts A, B, C and D are correct?

•  A B C D Tail fibres Head Sheath Collar
•  A B C D Sheath Collar Head Tail fibres
•  A B C D Head Collar Sheath Tail fibres
•  A B C D Collar Tail fibres Head Sheath

C.

 A B C D Head Collar Sheath Tail fibres

Plasmids are the extrachromosomal DNA found in bacterial cells. These are commonly used as vectors in genetic engineering programmes because these have the capacity of binding with eukaryotic DNA.
A bacteriophage is a virus that is parasitic within a bacterium. These also, are the important tools in genetic engineering s cloning vectors.

Plasmids are the extrachromosomal DNA found in bacterial cells. These are commonly used as vectors in genetic engineering programmes because these have the capacity of binding with eukaryotic DNA.
A bacteriophage is a virus that is parasitic within a bacterium. These also, are the important tools in genetic engineering s cloning vectors.

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Comment two chains of DNA have antiparallel polarity.

The Two chain of DNA are antiparallel that is
if one chain has 5’ x 3’ polarity the other chain has 3’ x 5’ polarity.
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How many nucleotides are present in a bacteriophage $\mathrm{\varphi }$ x 174.

5386
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List the number of base pairs in :

(i) lambda bacteriophage

(ii) E.coli and

(iii) haploid content of human DNA.

(i) 48502 bp
(ii) 4.6 x 106 bp and
(iii) 3.3 x 109 bp.
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Name the genetic material for majority of organisms.

DNA (Deoxyribose nucleic acid)
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List the function of RNA.

Functions of RNA
RNA acts as genetic material in viruses
It also functions as an adapter and messenger
It also acts as a catalytic molecule and catalyses various biochemical reactions.
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