In which one of the following combinations (a-d) of the number of the chromosomes is the present day hexaploid wheat correctly represented?
Combination | Monosomic | Haploid | Nullisomic | TrisomicZ |
$27-28-42-43$
$7-82-40-42$
$21-7-42-43$
$41-21-40-43$
Cytoplasmic inheritance always shows
$A$ : Pseudoalleles are actually closely linked genes.
$R$ : These can be identified easily as both affect different characters, providing separate phenotypes
Epistasis and dominance are respectively
Which one of the following is a physical factor that induce mutation?
Number of linkage group in Pisum sativum is