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Antiparallel strands of a DNA molecule m...

Antiparallel strands of a DNA molecule means that `:`

A

one strand turns clockwise

B

one strand turns anti-clockwise

C

the phosphate groups of two DNA strands at their ends, share the same position.

D

the phosphate groups at the start of two. DNA strands are in opposite position (pole)

Text Solution

Verified by Experts

The correct Answer is:
D
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Are the two strands of DNA molecule identical ?

A 3' ______________ 5' B C 5' _______________ 3'D AB and CD represent two strands of a DNA molecule. When this molecule undergoes replication, forming a replication fork between A and C in the above. (i) Name the template strands for replication. (ii) Using which strand as the template, will there be continuous synthesis of a complementary DNA strand? (iii) Complementary to which strand will Okazaki segments get synthesised and discontinuous synthesis will occur (iv) What are template strands and Okazaki pieces? (v) In which direction is a new strand synthesized?

Knowledge Check

  • Antiparallel strands in DNA is due to

    A
    Disulphide linkage
    B
    Hydrogen bond
    C
    Phosphodiester bond
    D
    Glycosidic bond

  • In one polyncleotide strand of a DNA molecule the ratio of A+T//G+C is 0.3 . What is the A+G//T+C ratio of the entire DNA molecule ?

    A
    0.3
    B
    0.6
    C
    1.2
    D
    1

  • The sequence of nitrogen bases in a particular region of the non - coding strand of a DNA molecule was founds to CAT GTT TAT CGC. What would be the sequence of nitrogen bases in the mRNA that is synthesized by the corresponding region of the coding strand in that DNA

    A
    GUA CAA AUA GCC
    B
    GTA CAA ATA GCC
    C
    CAU GUU UAU CGC
    D
    CAA GAA TAU GCC

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    If the fragment of one strand in DNA molecule has the base sequence CCATGCATG, what is the base sequence of complementary strand ?

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