12 Biology- 9 Strategies for Improvement in Food Production: Online Test

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Developed by Dr. Abhijit Saha, Training Associate (Biology) ZIET Bhubaneswar

A group of animals which are related by descent and share many similarities, are referred to as *

2 points

breed

race

variety

species

Inbreeding is carried out in animal husbandry because it: *

2 points

increases vigour

increases heterozygosity

improves the breed

increases homozygosity`

In virus-infected plants the meristematic tissues in both apical and axillary buds are free of virus because *

2 points

the dividing cells are virus resistant

meristems have anti-viral compounds

the cell division of meristems is faster than the rate of viral multiplication

viruses cannot multiply within meristem cell (s)

The term 'totipotency' refers to the capacity of a *

2 points

cell to generate whole plant

bud to generate whole plant

seed to germinate

cell to enlarge in size

An explant is a *

2 points

dead plant

part of the plant

part of the plant used in tissue culture

part of the plant that expresses a specific gene

Which one of the following is a marine fish? *

2 points

Rohu

Hilsa

Catla

Common Carp

Which one of the following species of bees is used for the commercial production of honey? *

2 points

Apis dorsata

Apis indica

Apis florea

Apis mellifera

'Jaya' and 'Ratna' developed by green revolution in India are the varieties of *

2 points

maize

rice

wheat

bajra

Somaclones are produced by *

2 points

genetic engineering

tissue culture

irradiation

plant breeding

In the hexaploid wheat, the haploid (n) and basic (x) number of chromosomes respectively, are *

2 points

n=21 and x=21

n=21 and x=14

n=21 and x=7

n=7 and x=21

Which among the following is generally used for inducing mutations in crop plants? *

2 points

Gamma rays from Cobalt -60

X-rays

UV-rays-(260 nm)

Alpha particles

Single cell protein refers to *

2 points

a specific protein extracted from pure culture of single type of cells

sources of mixed proteins extracted from pure or mixed culture of organisms and cells

proteins extracted from a single cell

a specific protein extracted from a single cell

In callus culture, roots can be induced by the supply of *

2 points

gibberellins

ethylene

cytokinin

auxins

White revolution is related to the increase in production of *

2 points

egg

milk

wool

meat

Which one of the following is a man made cereal, not found in nature? *

2 points

Dwarf wheat

Triticale

Hybrid maize

Soyabean

Selection of homozygous plants, is called *

2 points

mass selection

pure line selection

mixed selection

clonal selection

The scientific process by which crop plants are enriched with certain desirable nutrients, is called *

2 points

crop protection

breeding

biofortification

bioremediation

A collection of all the alleles of all the genes of a crop plant is called *

2 points

germplasm collection

protoplasm collection

herbarium

somaclonal collection

Sonalika and Kalyan Sona are varieties of *

2 points

wheat

rice

millet

tobacco

Micropropagation is *

2 points

propagation of microbes in vitro

propagation of plants in vitro

propagation of cells in vitro

growing plants on smaller scale

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