Palindromic DNA implies
A. Short stretches of DNAB. Recognized by specific restriction endonuclease
C. Codes for bacterial resistance
D. Complementary strands
E. part for microbial genetic drifts
The Answer is(A) Short stretches of DNA; (B) Recognised by specific restriction endonuclease (D)
Complementary strands
• A palindrome is a region
of double stranded DNA in which each of twa strands has same sequences when read in the same direction (i.e. in the 5’- 3’ direction)
• They have complementary strands
• Restriction endonuclease also called Restriction
enzymes cleave double stranded DNA into smaller, more manageable fragments,
opened for DNA analysis. These enzymes
recognize short Stretches of DNA (usually 4 to 6 base pairs) that
contain specific nucleotide sequences. Thus, sequence which differ for each
restriction endonuclease, are palindromes.
• Drug resistance is due to
- Chromosome mediated resistance
- Plasmid mediated resistance
-Transposon mediated resistance
