Multiple Choice QuestionsIn which one of the following sets of three items each belong to the category mentioned against them
Lysine, glycine, thiamine - amino acids
Myosin, oxytocin and gastrin - hormones
Rennin, helicase and hyaluronidase - enzymes
Optic nerve, oculomotor, vagus - sensory nerves
Given below is a highly simplified representation of the human sex chromosomes from a karyotype
The gene a and b could be of
colour blindness and body height
attached ear lobe and Rhesus blood group
haemophilia and red-green colour blindness
phenylketonuria and haemophilia
Pollution from animal excreta and organic waste from kitchen can be most profitably minimized by
storing them in underground storage tanks
using them for producing biogas
vermiculture
using them directly as biofertilizers
Genes present in the cytoplasm of eukaryotic cells are found in
mitochondria and inherited via egg cytoplasm
lysosomes and peroxisomes
Golgi bodies and smooth endoplasmic reticulum
plastids and inherited via male gamete
When children play bare footed in pools of ditty water and flood water, they may suffer from disease like
leptospirosis and bilharzia
malaria, amoebic dysentery and leptospirosis
bilharzia, infective hepatitis and diarrhoea
guinea worm infection, elephantiasis and amoebic dysentery.
Which one of the following is an environment related disorder with the correct main cause
Black lung disease (pneumoconiosis) found mainly in workers in stone quarries and crushers.
Blue baby disease (methaemoglobinaemia) due to heavy use of nitrogenous fertilizers in the area.
Non-hodgkin's lymphoma found mainly in workers involved in manufacture of neem based pesticides.
Skin cancer mainly in people exposed to benzene and methane.
In the following table identify the correct matching of the crop, its disease and the corresponding pathogen.
| Crop | Disease | Pathogen |
| Citrus | Canker | Pseudomonas rubrilineans |
| Potato | Late blight | Fusarium udum |
| Brinjal | Root-knot | Meloidogyne incognita |
| Pigeon | pea Seed gall | Phytophthora infestans |
C.
| Brinjal | Root-knot | Meloidogyne incognita |
The root knot disease of brinjal is quite common in all vegetative growing areas especially when the climate is warm, with short winters. The disease is caused by root knot nematode Meloidogyne incognita. It devitalizes root tips, develop swelling over roots and reduces flow of I water and minerals to the aerial parts. As a result yield and quality of fruits are affected. Citrus canker is a common bacterial diseases of citrus tree, caused by Xanthomonas citri. Late blight is a disease of potato caused by fungus Phytophthora infestans having blight type symptoms. Wilt of pigeon pea is caused by Fusarium udum (fungi) where wilting of seedlings and adult plants occur
In which one of the following combinations (a-d) of the number of chromosomes is the present day hexaploid wheat correctly represented
| Combination | Monosoic | Haploid | Nullisomic | Trisomic |
| (a) | 21 | 28 | 42 | 43 |
| (b) | 7 | 28 | 40 | 42 |
| (c) | 21 | 7 | 42 | 43 |
| (d) | 41 | 21 | 40 | 43 |
Hirudin is
a protein produced by Hordeum vulgare, which is rich in lysine
a toxic molecule isolated from Gossypium hirsutum, which reduces human fertility
a protein produced from transgenic Brassica napus, which prevents blood clotting
an antibiotic produced by a genetically engineered bacterium, Escherichia coli.
mong rust, smut and mushroom all the three
are pathogens
are saprobes
bear ascocarps
bear basidiocarps.
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