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प्रश्न
The recognition sequence of restriction enzymes is generally ______ nucleotide long.
विकल्प
2 to 4
4 to 8
8 to 10
14 to 18
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उत्तर
The recognition sequence of restriction enzymes is generally 4 to 8 nucleotides long.
Explanation:
The sequences recognized by restriction enzymes are 4 to 8 nucleotides long and characterized by a particular type of internal symmetry. Consider the specific sequence recognized by the enzyme EcoRI.
संबंधित प्रश्न
Rearrange the following in the correct sequence to accomplish an important biological reaction:
(a) In vitro synthesis of copies of DNA of interest
(b) Chemically synthesized oligonucleotides
(c) Enzyme DNA-polymerase
(d) Complementary region of DNA
(e) Genomic DNA template
(f) Nucleotides provided
(g) Primers
(h) Thermostable DNA-polymerase (from Thermus aquaticus)
(i) Denaturation of ds-DNA
The enzyme restriction endonuclease ______.
Ti plasmid being used for introducing genes in plants obtained from ______.
Polymerase chain reaction is most useful in ______.
What is Palindromic sequence?
The polymerase chain reaction is a powerful technique to ______.
What is EcoRI?
In vitro amplification of DNA segments is called______.
Which one of the following enzymes is used to join DNA fragments?
Give a reason for the following:
DNA cannot enter directly into the host cell.
