Apiculture is associated with which of the following groups of plants ?

  • Grapes, maize, potato

  • Sugarcane, paddy, banana

  • Guava, sunflower, strawberry

  • Pineapple, sugarcane, strawberry

Pebrine in silkworms is caused by:-

  • Dugesia

  • Monocystis

  • Nosema

  • Plasmodium

Which of the following is not true for inbreeding?

  • It causes inbreeding depression after a few generations.

  • It always increases the productivity.

  • It is used to produce a pure line.

  • It leads to homozygosity.

The phenomenon that operates in the formation of root or shoot in a callus culture is

  • differentiation

  • re-differentiation

  • de-differentiation

  • re-juvenation.

Match Column - 1 with Column - II and select the correct option from given codes.
Column I                               Column - II
A. Brassica                           (i) Himgiri
B. Okra                                (ii) Pusa Komal
C. Wheat                              (iii) Pusa Gaurav
D. Cowpea                            (iv) Pusa Sawani

  • A- (iii), B- (iV), C- (i), D- (ii)

  • A- (i), B- (iii), C- (ii), D- (iv)

  • A- (iv), B- (iii), C- (i), D- (ii)

  • A- (ii), B- (iv), C- (i), D- (iii)

The number of chromosomes present in the cells of the bread wheat, Triticum aestivum suggests that it is

  • hexaploid

  • diploid

  • tetraploid

  • pentaploid

Which one of the following methods is commonly used to maintain the genetic traits of a given plant ?

  • By propogating through seed germination

  • By propogating through vegetative multiplication

  • By generating hybrids through intergeneric pollination

  • By treating the seeds with gamma radiations 

Identify the correct matches for crops and their improved varities

     Crops                  Varities                      Disease

  • Wheat                Karan rai                    White rust

  • Cauliflower        Pusa Shubhna              Leaf and stripe rust

  • Cowpea              Pusa Koma                 Hill bunt

  • Chill                 Pusa Sadabahar            Tobacco mosaic virus and leaf curl

In callus culture, shoots can be included by the supply of

  • auxin and no cytokinin

  • higher concentration of auxin and lower concentration of cytokinin

  • Higher concentration of cytokinin and lower concentration of auxin

  • Both auxin and cytokinin in equal amounts

Pollorum disease in fowls is caused by

  • Salmonella

  • Clostridium

  • Hemophilus

  • Mycobacterium

One of these protozoans is threat to apiculture and sericulture

  • Eimeria

  • Ceratium

  • Nosema

  • Monocystis

The callus is defined as

  • decaying cells

  • differentiated cells

  • sterile mass cells

  • undifferentiated mass of cells

Tritical is obtained by crossing wheat with

  • oat

  • barley

  • maize

  • rye

Genetically engineered bovine (bST), sometimes called rbST (recombinant bovine somatotropin) or rbGH (recombinant bovine growth hormone) are used in the.

  • therapeutic drugs

  • agriculture

  • dairy industry

  • DNA fingerprinting

Which of the following is correctly matched ?

  • Central Rice Research Institute - Shimla 

  • National Botanical Research Institute - Delhi

  • Central Drug Research Institute - Cuttack

  • Central food Technology Research Institute - Mysore

Wonder wheat is new wheat variety developed by

  • Mexico's international wheat and maize improvement centre

  • Indian national botanical research institute

  • Australian crop improvement centre

  • African crop improvement centre

Which statement is correct?

A.  Somaclonal variations are the variations observed in plants generated from somatic cultures.

B.  A transgenic crop is one that contains and expresses a transgene.

C.  Chloromycetin is obtained from Penicillium.

D.  Bioprospecting is the process of discovery and commercialization of new products based on biological resources

  • A, B, D

  • B, C

  • C, D

  • A, B, C, D

What is the genetic importance of outcrossing?

  • Outcrossing is a characteristic of pollinators

  • Outcrossing increases genetic diversity in a population

  • Outcrossing increases the chances of sterility

  • Outcrossing promotes inbreeding in a population

For which of the following animals, MOET has not been demonstrated?

  • Cattle
  • Sheep
  • Rabbits
  • Dogs

Which of the following options best define the quality of meat yielding bulls for MOET?

  • Fatty meat with less lipid

  • Lean meat with more lipid

  • Lean meat with less lipid

  • Fatty meat with more lipid

Which of the following is not correct for Apiculture?

  • Bee-keeping

  • Maintenance of the hives for the production of honey

  • An age-old cottage industry

  • An industry that has not yet established for a reliable income source

The most common species of the honeybee is

  • Apis indica

  • Apis dramica

  • Apis schinaca

  • Apis Indiana

Which of the following is not pollinated by bees?

  • Sunflower

  • Brassica

  • Apple

  • Chilli

Keeping beehives in crop fields during the flowering period will cause

  • Increase of crop yield

  • Increase of honey yield

  • Increase of crop yield and decrease of honey yield

  • Both 1 and 2

The fishery industry is devoted to

  • Catching of fishes

  • Processing of fishes

  • Selling of fishes

  • All of these

In order to increase the production of aquatic plants and animals which of the following cultures are used?

  • Aquaculture

  • Pisciculture

  • Both 1 and 2

  • Apiculture

The green revolution was dependent to a large extent for the development of high yielding and disease-resistant varieties on which of the following options?

  • Plant breeding

  • Better management practices

  • Increase in acreage

  • Both 2 and 3

Which of the following timeline is correct for conventional plant breeding?

  • Practiced for thousands of years, since the beginning of human civilization

  • The evidence of plant breeding dates back 9000-11000 years ago

  • The present-day crops are the result of domestication in ancient times

  • All of these

The list of traits that breeders have tried to incorporate into crop plants will have the number one priority to

  • Increased tolerance to environmental stresses

  • Resistance to pathogens

  • Tolerance to insect pests

  • Increased crop yield and improved quality

What is the root of any breeding program?

  • Genetic variability

  • Gametic sustainability

  • Germplasm durability

  • Meiotic Anaphase

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Practice Botany Quiz Questions and Answers