Which of the following enhances or induces fusion of protoplasts?
(1) Sodium chloride and potassium chloride
(2) Polyethylene glycol and sodium nitrate
(3) IAA and kinetin
(4) IAA and gibberellins
In vitro clonal propogation in plants characterised by
(a) PCR and RAPD
(b) Northen blotting
(c) Electrophoresis and HPLC
Concept Questions :-
An alga which can be employed as food for human being is
To obtain virus-free healthy plants from a diseased one by tissue culture technique, which part/parts of the diseased plant will be taken?
(a) Apical meristem only
(b) Palisade parenchyma
(c) Both apical and axillary meristems
(d) Epidermis only
In plant breeding programmes, the entire collection (of plants/seeds) having all the diverse alleles for all genes in a given crop is called
(a) selection of superion recombinations
(b) cross-hybridisation among the selected parents
(c) evaluation and selection of parents
(d) germplasm collection
Which part would be most suitable for raising virus-free plants for micropropagation?
(b) Vascular tissue
Consumption of which one of the following foods can prevent the kind of blindness associated with vitamin-A deficiency ?
(a) Flaver savr tomato
(c) Golden rice
'Jaya', and 'Ratna', developed for green revolution in India are the varieties of
A collection of plants and seeds having diverse alleles of all the genes of a crop is called
(b) gene library
'Himgiri' developed by hybridisation and selection for disease resistance against rust pathogens is a variety of