Which one of the following is commonly used in the transfer of foreign DNA into crops plants?
Trichoderma hazianum
Meloidogyne incognita
Agrobacterium tumefaciens
Agrobacterium tumefaciens
C.
Agrobacterium tumefaciens
The uptake of foreign DNA or transgenes by plant cells is called transformation. A variety of techniques have been used to introduce transgenes into plant cells, these can be grouped into the following two categories0 (i) Agrobacterium-mediated and (ii) direct gene transfers.
Agrobacterium tumefaciens mediated transformation eliminates the need for regeneration from tissue explants.
Study the pedigree chart of a certain family given below and select the correct conclusion which can be drawn for the character.
The female parent is heterozygous
The parents could not have a had a normal daughter for this character
The trait under study could not be colour blindness
The trait under study could not be colour blindness
Which one of the following condition in humans is correctly matched with tis chromosomal abnormality /linkage?
Klinefelter's syndrom-44 autosomes + XXX
Colourblindness- Y-linked
Erythroblastosis foetails - X-linked
Erythroblastosis foetails - X-linked
The bacterium Bacillus thuringiensis is widely used in contemporary biology as a/an
Indicator of water pollution
insecticide
agent for the production of dairy products
agent for the production of dairy products
Point mutation involves
insertion
change in the single base pair
duplication
duplication
