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Strategies for Enhancement in Food Production

48 Questions
All Exams NEET AIIMS
2023 NEET MCQ
NEET 2023 Manipur

Select the incorrect statement with respect to Multiple Ovulation Embryo Transfer (MOET) Technology.

A.
Fertilised eggs at 4 to 6 cells - stages are recovered non-surgically from super-ovulating cow and transferred to surrogate mother.
B.
It is used to increase herd size in a short time
C.
Cow is administered with hormones to induce super-ovulation.
D.
Super-ovulating cow is either mated with elite bull or is artificially inseminated.
2023 NEET MCQ
NEET 2023

Which one of the following is NOT an advantage of inbreeding?

A.
It exposes harmful recessive genes but are eliminated by selection.
B.
Elimination of less desirable genes and accumulation of superior genes takes place due to it.
C.
It decreases the productivity of inbred population, after continuous inbreeding.
D.
It decreases homozygosity.
2022 NEET MCQ
NEET 2022 Phase 2

Which of the following can be expected if scientists succeed in introducing apomictic gene into hybrid varieties of crops?

A.
There will be segregation of the desired characters only in the progeny
B.
Polyembryony will be seen and each seed will produce many plantlets
C.
Seeds of hybrid plants will show longer dormancy
D.
Farmers can keep on using the seeds produced by the hybrids to raise new crop year after year
2022 NEET MCQ
NEET 2022 Phase 2

Select the incorrect statement with respect to inbreeding of animals.

A.
It exposes harmful recessive genes that are eliminated by selection.
B.
It is used for evolving pure lines in cattle.
C.
It helps in accumulation of superior genes and elimination of less desirable genes.
D.
It decreases homozygosity.
2022 NEET MCQ
NEET 2022 Phase 1

Breeding crops with higher levels of vitamins and minerals or higher proteins and healthier fats is called:

A.
Bio-magnification
B.
Bio-remediation
C.
Bio-fortification
D.
Bio-accumulation
2021 NEET MCQ
NEET 2021
Mutations in plant cells can be induced by :
A.
Zeatin
B.
Kinetin
C.
Infrared rays
D.
Gamma rays
2021 NEET MCQ
NEET 2021
Which of the following is not an objective of Biofortification of crops?
A.
Improve micronutrient and mineral content
B.
Improve protein content
C.
Improve resistance to diseases
D.
Improve vitamin content
2021 NEET MCQ
NEET 2021
Which of the following is not a step in Multiple Ovulation Embryo Transfer Technology (MOET)?
A.
Fertilized eggs are transferred to surrogate mothers at 8-32 cell stage
B.
Cow is administered hormone having LH like activity for supper ovulation
C.
Cow yields about 6-8 eggs at a time
D.
Cow is fertilized by artificial insemination
2020 NEET MCQ
NEET 2020 Phase 1
By which method was a new breed ‘Hisardale’ of sheep formed by using Bikaneri ewes and Marino rams?
A.
Out crossing
B.
Mutational breeding
C.
Inbreeding
D.
Cross breeding
2019 NEET MCQ
NEET 2019
Select the incorrect statement.
A.
Inbreeding selects harmful recessive genes that reduce fertility and productivity.
B.
Inbreeding helps in accumulation of superior genes and elimination of undesirable genes.
C.
Inbreeding increases homozygosity.
D.
Inbreeding is essential to evolve purelines in any animal.
2019 NEET MCQ
NEET 2019
Which of the following is true for Golden rice?
A.
It is drought tolerant, developed using Agrobacterium vector.
B.
It has yellow grains, because of a gene introduced from a primitive variety of rice.
C.
It is Vitamin A enriched, with a gene from daffodil.
D.
It is pest resistant, with a gene from Bacillus thuringiensis.
2017 NEET MCQ
NEET 2017
Homozygous purelines in cattle can be obtained by :
A.
mating of related individuals of same breed
B.
mating of individuals of different species
C.
mating of individuals of different breed
D.
mating of unrelated individuals of same breed
2017 NEET MCQ
NEET 2017
Artificial selection to obtain cows yielding higher milk output represents :
A.
directional as it pushes the mean of the character in one direction
B.
stabilizing followed by disruptive as it stabilizes the population to produce higher yielding cows.
C.
disruptive as it splits the population into two, one yielding higher output and the other lower output.
D.
stabilizing selection as it stabilizes this character in the population.
2016 NEET MCQ
NEET 2016 Phase 2
Among the following edible fishes, which one is a marine fish having rich source of omeg-3 fatty acids ?
A.
Mangur
B.
Mystus
C.
Mackerel
D.
Mrigala
2016 NEET MCQ
NEET 2016 Phase 2
A true breeding plant is -
A.
produced due to cross-pollination among unrelated plants
B.
one that is able to breed on its own
C.
near homozygous and produces offspring of its own kind
D.
always homozygous recessive in its genetic constitution
2016 NEET MCQ
NEET 2016 Phase 2
Interspecific hybridisation is the mating of
A.
animals within same breed without having common ancestors
B.
superior males and females of different breeds
C.
more closely related individuals within same breed for 4-6 generations =
D.
two different related species
2016 NEET MCQ
NEET 2016 Phase 1
A system of rotating crops with legume or grass pasture to improve soil structure and fertility is called -
A.
Shifting agriculture
B.
Strip farming
C.
Ley farming
D.
Contour farming
2015 NEET MCQ
AIPMT 2015
A protoplast is a cell -
A.
undergoing division
B.
without plasma membrane
C.
without nucleus
D.
without cell wall
2015 NEET MCQ
AIPMT 2015
Outbreeding is an important strategy of animal husbandry because it :
A.
helps in accumulation of superior genes.
B.
is useful in overcoming inbreeding depression.
C.
is useful in producing purelines of animals.
D.
exposes harmful recessive genes that are eliminated by selection.
2015 NEET MCQ
AIPMT 2015 Cancelled Paper
Which of the following enhances or induces fusion of protoplasts ?
A.
Sodium chloride and potassium chloride
B.
IAA and kinetin
C.
Polyethylene glycol and sodium nitrate
D.
IAA and gibberellins
2015 NEET MCQ
AIPMT 2015 Cancelled Paper
A technique of micropropagation is
A.
somatic embryogenesis
B.
embryo rescue
C.
protoplast fusion
D.
somatic hybridisation
2014 NEET MCQ
AIPMT 2014
In vitro clonal propagation in plants is characterized by :
A.
Microscopy
B.
Northern blotting
C.
Electrophoresis and HPLC
D.
PCR and RAPD
2013 NEET MCQ
NEET 2013 (Karnataka)
The viability of seeds is tested by :
A.
2, 3, 5 triphenyl tetrazolium chloride
B.
Safranine
C.
2, 6 dichlorophenol indophenols
D.
DMSO
2013 NEET MCQ
NEET 2013
In plant breeding programmes, the entire collection (of plants/seeds) having all the diverse alleles for all genes in a given crop is called :
A.
germplasm collection
B.
evaluation and selection of parents
C.
selection of superior recombinants
D.
cross-hybridisation among the selected parents
2012 NEET MCQ
AIPMT 2012 Mains
Green revolution in India occurred during -
A.
1980's
B.
1950's
C.
1960's
D.
1970's
2011 NEET MCQ
AIPMT 2011 Prelims
'Himgiri' developed by hybridisation and selection for disease resistance against rust pathogens is a variety of :
A.
Chilli
B.
Sugarcane
C.
Wheat
D.
Maize
2011 NEET MCQ
AIPMT 2011 Prelims
A collection of plants and seeds having diverse alleles of all the genes of a crop is called :
A.
Gene library
B.
Genome
C.
Germplasm
D.
Herbarium
2011 NEET MCQ
AIPMT 2011 Prelims
"Jaya" and "Ratna" developed for green revolution in India are the varieties of :
A.
Bajra
B.
Wheat
C.
Maize
D.
Rice
2008 NEET MCQ
AIPMT 2008
Which one of the following is linked to the discovery of Bordeaux mixture as a popular fungicide ?
A.
Downy mildew of grapes
B.
Bacterial leaf blight of rice
C.
Loose smut of wheat
D.
Black rust of wheat
2008 NEET MCQ
AIPMT 2008
Consider the following four measures (1-4) that could be taken to successfully grow chickpea in an area where bacterial blight disease is common:
(i) Spray with Bordeaux mixture
(ii) Control of the insect vector of the disease pathogen
(iii) Use of only disease-free seeds
(iv) Use of varieties resistant to the disease
Which two of the above measures can control the disease ?
A.
(i) and (ii)
B.
(i) and (iv)
C.
(ii) and (iii)
D.
(iii) and (iv)
2007 NEET MCQ
AIPMT 2007
In cloning of cattle a fertilized egg is taken out of the mother's womb and:-
A.
In the eight cell stage the individual cells are separated under electrical field for further development in culture media
B.
The egg is divided into 4 pairs of cells which are implanted into the womb of other cows
C.
In the eight cell stage, cells are separated and cultured until small embryos are formed which are implanted into the womb of other cows.
D.
From this upto eight identical twins can be produced
2007 NEET MCQ
AIPMT 2007
In maize, hybrid vigour is exploited by:-
A.
Crossing of two inbred parental lines
B.
Bombarding the seeds with DNA
C.
Harvesting seeds from the most productive plants
D.
Inducing mutations
2007 NEET MCQ
AIPMT 2007
Which one of the following is a viral disease of poultry ?
A.
Salmonellosis
B.
New Castle disease
C.
Pasteurellosis
D.
Coryza
2007 NEET MCQ
AIPMT 2007
Compared to a bull a bullok is docile because of:-
A.
Lower levels of adrenalin/noradrenalin in its blood
B.
Lower levels of blood testosterone
C.
Higher levels of thyroxin
D.
Higher levels of cortisone
2006 NEET MCQ
AIPMT 2006
In order to obtain virus-free plants through tissue culture the best method is-
A.
Anther culture
B.
Protoplast culture
C.
Meristem culture
D.
Embryo rescue
2006 NEET MCQ
AIPMT 2006
Crop plants grown in monoculture are-
A.
Characterised by poor root system
B.
Highly prone to pests
C.
Low in yield
D.
Free from intraspecific competition
2006 NEET MCQ
AIPMT 2006
In Maize, hybrid vigour is exploited by-
A.
Crossing of two inbred parental lines
B.
Inducing mutations
C.
Harvesting seeds from the most productive plants
D.
Bombarding the protoplast with DNA
2006 NEET MCQ
AIPMT 2006
Triticale, the first man-made cereal crop, has been obtained by crossing wheat with
A.
Pearl millet
B.
Sugarcane
C.
Rye
D.
Barley
2005 NEET MCQ
AIPMT 2005
Three crops that contribute maximum to global food grain production are -
A.
Wheat maize and sorghum
B.
Wheat, rice and barley
C.
Wheat, rice and maize
D.
Rice, maize and sorghum
2005 NEET MCQ
AIPMT 2005
Which of the following is generally used for induced mutagenesis in crop plants ?
A.
UV (260 nm)
B.
Alpha particles
C.
Gamma rays (from cobalt 60)
D.
X rays
2005 NEET MCQ
AIPMT 2005
The name of Norman Borlaug is associated with-
A.
Blue Revolution
B.
Yellow Revolution
C.
Green Revolution
D.
White Revolution
2004 NEET MCQ
AIPMT 2004
The technique of obtaining large number of plantlets by tissue culture method is called –
A.
Macropropagation
B.
Organ culture
C.
Plantlet culture
D.
Micropropagation
2004 NEET MCQ
AIPMT 2004
India's wheat yield revolution in the 1960s was possible primarily due to :-
A.
Hybrid seeds
B.
Quantitative trait mutations
C.
Increased chlorophyll content
D.
Mutations resulting in plant height reduction
2001 NEET MCQ
AIPMT 2001
Before the European invader which vegetable was absent in India ?
A.
Simla mirch and Brinjal
B.
Bitter gourd
C.
Maize and chichinda
D.
Potato and Tomato
2001 NEET MCQ
AIPMT 2001
Which fish selectively feed on larva of mosquito ?
A.
Clarias
B.
Rohu
C.
Exocoetus
D.
Gambusia
2001 NEET MCQ
AIPMT 2001
Triticale is obtained by crossing wheat with
A.
Barley
B.
Rye
C.
Oat
D.
Maize
2000 NEET MCQ
AIPMT 2000
Which statement is correct ?
A.
Workers are the smallest of the three castes
B.
Wax is waste material of honey bee
C.
Drone of honey bee is diploid
D.
A. indica is largest wild honey bee
2000 NEET MCQ
AIPMT 2000
Coconut milk is used in tissue culture in which present :
A.
Auxin
B.
Gibberellin
C.
Ethylene
D.
Cytokinin