Class 12th Biology 2017 Set3 Delhi Board Paper Solution
Explain the role(s) of the following in biotechnology.
(a) Restriction endonuclease
Restriction endonuclease:
Restriction enzymes are molecular scissors used in molecular biology for cutting DNA sequences from a specific site.
These enzymes are used to form recombinant molecules of DNA, composed of DNA from different sources.
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Fill in the blanks:
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(c) Fertilization is __________ in humans. (external/internal)
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(e) Zygote is __________. (diploid/haploid)
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