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NEET Biology Solved Question Paper 2009

Multiple Choice Questions

51.

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

52.

Genetically engineered bacteria are being employed for production of

thyroxin
human insulin
cortisol
epinephrine

53.

Scientific name of sunflower is

Hibiscus rosa-sinensis
Solanum nigrum
Oryza sativa
Helianthus annuus

54.

By which of the following methods, new and better varieties of plants can be formed

Selection
Grafting
Hybridization
Hybridization followed by selection

55.

Chromosomes can be stained with one of the following chemicals

acetocarmine
safranine
light green
eosin

56.

Which one of the following is the American poultry breed

Australop
Assel
Minorica
Rhod Island Red

57.

Ornithophily refers to the pollination by which of the following

insects
birds
snails
air

58.

Which of the following is an example of man-made ecosystem

Herbarium
Aquarium
Tissue culture
Forest

59.
Which one of the following leucocytes transforms into macrophages

Eosinophil

Basophil

Monocyte

Lymphocyte

Monocyte

Monocytes are a type of leukocyte, or white blood cell. They are the largest type of leukocyte and can differentiate into macrophages and myeloid lineage dendritic cells. As a part of the vertebrate innate immune system monocytes also influence the process of adaptive immunity.