DNA fragments generated by the restriction endonucleases in a chemical reaction can be separated by
centrifugation
polymerase chain reaction
electrophoresis
electrophoresis
B.
polymerase chain reaction
C.
electrophoresis
DNA fragments generated by the reaction is simply DNA replication in a test tube. Restriction mapping is the process of obtaining structural information on a piece of DNA by the use of restriction enzymes, e.g., endonucleases that recognise specific 4 to 8 base regions of DNA.
Which one of the following is not used for ex-situ plant conservation?
Field genebanks
Seed banks
Shifting cultivation
Shifting cultivation
The colonies of recombinant bacteria appear white in contrast to blue colonies of non-recombinant bacteria because of
Non-recombinant bacteria containing β-galactosidease
Insertional inactivation of α - galactosidase in recombinant bacteria
Insertional inactivation of α-galactosidase in recombinant bacteria
Insertional inactivation of α-galactosidase in recombinant bacteria
Which of the following is not correctly matched for the organism and its cell wall degrading enzyme?
Bacteria -Lysozyme
Plant cells - Cellulase
Algae - Methylase
Algae - Methylase
What is the correct sequence of sperm formation
spermatid, spermatocyte, spermatogonia, spermatozoa
Spermatognia, Spermatocyte, Spermatozoa, Spermatid
Spermatogonia, spermatozoa, Spermatocyte, Spermatid
Spermatogonia, spermatozoa, Spermatocyte, Spermatid
Secondary productivity is rate of formation of new organic matter by
producer
parasite
consumer
consumer
