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 |
C.
A |
B |
C |
D |
Head |
Collar |
Sheath |
Tail fibres |
Plasmids are the extrachromosomal DNA found in bacterial cells. These are commonly used as vectors in genetic engineering programmes because these have the capacity of binding with eukaryotic DNA.
A bacteriophage is a virus that is parasitic within a bacterium. These also, are the important tools in genetic engineering s cloning vectors.
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
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
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