Gel electrophoresis is used for
cutting of DNA into fragments
separation of DNA fragments according to their size
construction of recombinant DNA by joining with cloning vectors
construction of recombinant DNA by joining with cloning vectors
B.
separation of DNA fragments according to their size
When genomic DNA extracted from any tissue of a plant or animal species is digested with a restriction enzyme, it is cleaved into segments. The segments of different size can be separated through gel electrophoresis. Gel electrophoresis involves the movement of fragments or molecules from a well created on edge of the gel.
What is not true for genetic code?
A condon in mRNA is read in a non-contiguous fashion
It is nearly universal
It is degenerate
It is degenerate
Semiconservative replication of DNA was first demonstrated in
Drosophila melanogaster
Escherichia Coli
Streptococcus pneumoniae
Streptococcus pneumoniae
Transgenic plants are
produced by a somatic embryo in an artificial medium
generated by introducing foreign DNA into a cell and regenerating a plant from that cell
Produced by protoplast fusion in the artificial medium
Produced by protoplast fusion in the artificial medium
Given below is the diagram of a bacteriophage in which one of the options, all the four parts A, B, C and D are correct?
|
A |
B |
C |
D |
|
Tail fibres |
Head |
Sheath |
Collar |
|
A |
B |
C |
D |
|
Sheath |
Collar |
Head |
Tail fibres |
|
A |
B |
C |
D |
|
Head |
Collar |
Sheath |
Tail fibres |
|
A |
B |
C |
D |
|
Head |
Collar |
Sheath |
Tail fibres |
