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
Genetically engineered bacteria are being employed for production of
thyroxin
human insulin
cortisol
epinephrine
Scientific name of sunflower is
Hibiscus rosa-sinensis
Solanum nigrum
Oryza sativa
Helianthus annuus
By which of the following methods, new and better varieties of plants can be formed
Selection
Grafting
Hybridization
Hybridization followed by selection
Chromosomes can be stained with one of the following chemicals
acetocarmine
safranine
light green
eosin
Which one of the following is the American poultry breed
Australop
Assel
Minorica
Rhod Island Red
D.
Rhod Island Red
The Rhode Island Red is an American breed of domestic chicken. It was developed in the late nineteenth century in Massachusetts and Rhode Island by cross-breeding birds of Oriental origin such as the Malay with brown Leghorn birds from Italy
Which of the following is an example of man-made ecosystem
Herbarium
Aquarium
Tissue culture
Forest
Which one of the following leucocytes transforms into macrophages
Eosinophil
Basophil
Monocyte
Lymphocyte