By which of the following methods, new and better varieties of plants can be formed
Selection
Grafting
Hybridization
Hybridization followed by selection
Root cells of wheat has 2n = 42 chromosomes. Which one of the following is the basic chromosome number of wheat?
42
21
7
14
Micropropagation is a technique for production of
true to type plants
haploid plant
somatic hybrids
somaclonal plants
D.
somaclonal plants
The method of producing thousands of plants through tissue culture is called micropropagation. Each of these plants will be genetically identical to the original plant from which they were grown, ie, they are somaclones. Many important food plants like tomato, banana, apple, etc, have been produced on commercial scale using this method.
Which one of the following poultry birds is not an english breed?
Sussex
Australorp
Orpington
Minorca
In plant tissue culture, the callus tissues can be regenerated into complete plantlets primarily by altering the concentration of
sugars
vitamins
amino acids
hormones