Chromosomes can be stained with one of the following chemicals
acetocarmine
safranine
light green
eosin
A.
acetocarmine
Acetocarmine is a saturated solution of carmine in 45 percent acetic acid used especially for the rapid staining of fresh unfixed chromosomes.
Which one of the following leucocytes transforms into macrophages
Eosinophil
Basophil
Monocyte
Lymphocyte
By which of the following methods, new and better varieties of plants can be formed
Selection
Grafting
Hybridization
Hybridization followed by selection
Scientific name of sunflower is
Hibiscus rosa-sinensis
Solanum nigrum
Oryza sativa
Helianthus annuus
Genetically engineered bacteria are being employed for production of
thyroxin
human insulin
cortisol
epinephrine
Which of the following is correct
Haemophilic-Y-chromosome
Down's syndrome-21' chromosome
Sickle cell anaemiaX-chromosome
Parkinson's disease-X and Y-chromosome