Biology/Reproduction in plants Sample Test,Sample questions

Question:
An organic substance that can withstand environmental extremes and cannot be degraded by any enzyme is

1.Lignin

2.Cellulose

3.Cuticle

4.Sporopollenin

Posted Date:-2019-03-28 09:30:04


Question:
Apomictic embryos in citrus arise from

1.Maternal sporophytic tissue in ovule

2.Synergids

3.Diploid egg

4.Antipodal cells

Posted Date:-2019-03-27 13:35:28


Question:
Apomixis is a type of reproduction that results is the development of a/an

1.New organism without fusion of gametes

2.New organism from fusion products of gametes

3.Embryo from endosperm

4.Embryo from nucellus

Posted Date:-2019-03-28 09:42:52


Question:
Both, autogamy and geitonogamy are prevented in

1.Castor

2.Maize

3.Cucumber

4.Papaya

Posted Date:-2019-03-28 09:32:46


Question:
Double fertilization was first discovered by Nawaschin (1898) in

1.Lilium and Fritillaria

2.Mango and Sugarcane

3.Papaya and Pea

4.Brassica and Candytuft

Posted Date:-2019-03-28 09:44:27


Question:
Egg apparatus consists of

1.Egg

2.Egg and polar nuclei

3.Egg and synergids

4.Egg and antipodal cells

Posted Date:-2019-03-28 09:45:09


Question:
Endosperm is formed during the double fertilization by:

1.Ovum and male gamete

2.One polar nuclei and one male gamete

3.Two polar nuclei and one male gamete

4.Two polar nuclei and two male gametes

Posted Date:-2019-03-28 09:40:45


Question:
Even in absence of pollinating agents seed-setting is assured in

1.Salvia

2.Fig

3.Zostera

4.Commelina

Posted Date:-2019-03-28 09:33:31


Question:
Fibrous thickenings of hygroscopic nature are found in this part of the anther wall:

1.Middle layers

2.Endothecium

3.Epidermis

4.Tapetum

Posted Date:-2019-03-27 13:36:38


Question:
Grafting is successful in dicots but not in monocots because the dicots have:

1.cork cambium

2.vessels with elements arranged end to end

3.vascular bundles arranged in a ring

4.cambium for secondary growth

Posted Date:-2019-03-27 13:57:32


Question:
In a type of apomixis known as adventive embryony, embryos develop directly from the

1.Zygote

2.Nucellus or integuments

3.Synergids or antipodals in an embryo sac

4.Accessory embryo sacs in the ovule

Posted Date:-2019-03-27 13:38:35


Question:
In anatropous ovule what is the direction of micropyle?

1.Right

2.Downward

3.Upward

4.Left

Posted Date:-2019-03-28 09:35:13


Question:
In Angiosperms pollen tube liberate their male gametes into the:

1.Egg cell

2.Antipodal cells

3.Central cell

4.Synergids

Posted Date:-2019-03-28 09:41:31


Question:
In nature, cleistogamous flowers are

1.wind pollinated

2.insect pollinated

3.self pollinated

4.bird pollinated

Posted Date:-2019-03-27 13:39:41


Question:
In the fully organized polygonum type of embryo sac, what is the ratio of haploid, diploid and triploid nuclei?

1.6 : 1 : 0

2.6 : 0 : 1

3.3 : 1 : 3

4.3 : 2 : 3

Posted Date:-2019-03-27 13:49:03


Question:
In which one of the following, male and female gametophytes do not have free living independent existence

1.Funaria

2.Pteris

3.Cedrus

4.Polytrichum

Posted Date:-2019-03-28 09:37:40


Question:
In which one pair both the plants can be vegetatively propagated by leaf pieces

1.Asparagus and Bryophyllum

2.Agave and Kalanchoe

3.Bryophyllum and Kalanchoe

4.Chrysanthemum and Agave

Posted Date:-2019-03-27 13:58:28


Question:
Male gametes in angiosperms are formed by the division of:

1.Generative cell

2.Microspore

3.Microspore mother cell

4.Vegetative cell

Posted Date:-2019-03-28 09:39:10


Question:
Ornithophily refers to the pollination by which of the following:

1.Snails

2.Birds

3.Insects

4.Air

Posted Date:-2019-03-27 13:51:47


Question:
Ovule is attached to the placenta of ovary wall by:

1.Funicle

2.Raphae

3.Hilum

4.Testa

Posted Date:-2019-03-27 13:52:39


Question:
Plants with ovaries having only one or a few ovules, are generally pollinated by

1.Birds

2.Butterflies

3.Bees

4.Wind

Posted Date:-2019-03-27 13:53:30


Question:
Special Olympics World Games 2019 begins at which city?

1.Bishkek

2.Paris

3.Abu Dhabi

4.New York

Posted Date:-2019-03-23 09:16:57


Question:
Sporopollenin is chemically

1.Protein

2.Fatty substance

3.Homopolysaccharide

4.Heteropolysaccharide

Posted Date:-2019-03-27 13:54:30


Question:
The aleurone layer in maize grain is specially rich in

1.Lipids

2.Starch

3.Auxins

4.Proteins

Posted Date:-2019-03-28 09:39:49


Question:
The arrangement of the nuclei in a normal embryo sac in the dicot plants is

1.2 + 3 + 3

2.3 + 2 + 3

3.2 + 4 + 2

4.3 + 3 + 2

Posted Date:-2019-03-27 13:34:25


Question:
The coconut water and the edible part of coconut are equivalent to

1.Mesocarp

2.Embryo

3.Endosperm

4.Endocarp

Posted Date:-2019-03-28 09:30:58


Question:
The gynoecium consists of many free pistils in flowers of

1.Papaver

2.Michelia

3.Aloe

4.Tomato

Posted Date:-2019-03-28 09:31:52


Question:
The pollen are liberated in Cassytha by:

1.Transverse dehiscence

2.Longitudinal dehiscence

3.Porous dehiscence

4.Valvular dehiscence

Posted Date:-2019-03-27 13:55:37


Question:
There are 10 flowers in one individual plant of Crotalaria. In each microsporangium of every stamen of all the flowers, there are 30 microspore mother cells. How many pollen grains are formed from tha

1.48,000

2.24,000

3.10,000

4.4,000

Posted Date:-2019-03-27 13:56:40


Question:
Transfer of pollen grains from the anther to the stigma of another flower of the same plant is called

1.Geitonogamy

2.Xenogamy

3.Karyogamy

4.Autogamy

Posted Date:-2019-03-28 09:36:55


Question:
Vernalisation stimulates flowering in

1.Carrot

2.Turmeric

3.Elephant yam

4.Ginger

Posted Date:-2019-03-27 13:49:55


Question:
What is the function of germ pore?

1.Initiation of pollen tube

2.Absorption of water for seed germination

3.Emergence of radicle

4.Release of male gametes

Posted Date:-2019-03-27 13:41:40


Question:
What is the ratio of equational divisions that take place in Cycas and angiosperms respectively leading to the formation of male gametes from pollen grains?

1.2 : 1

2.3 : 1

3.3 : 2

4.2 : 3

Posted Date:-2019-03-27 13:50:41


Question:
What is the theme of this year,s World Kidney Day?

1.Kidney and Health

2.Healthy Lifestyle for Healthy Kidneys

3.Kidney Health for Everyone, Everywhere

4.Kidney Disease and Obesity

Posted Date:-2019-03-23 09:09:47


Question:
What would be the number of chromosomes of the aleurone cells of a plant with 42 chromosomes in its roots tip cells?

1.21

2.42

3.63

4.87

Posted Date:-2019-03-28 09:46:13


Question:
When the other floral parts are arranged at the base of the gynoecium, the flower is called :

1.Perigynous flower

2.Epigynous flower

3.Hypogynous flower

4.None of these

Posted Date:-2019-03-28 09:38:26


Question:
Which bank has launched doorstep banking service for senior citizens over 70 years of age and differently-abled customers recently?

1.BOB

2.IDBI

3.SBI

4.PNB

Posted Date:-2019-03-23 09:21:55


Question:
Which company to launch digital innovation center ar Bucharest in Romania to develop software for clients based on cloud, big data, artificial intelligence, and machine learning?

1.Wipro

2.HCL

3.Infosys

4.TCS

Posted Date:-2019-03-23 09:18:42


Question:
Which of the following pairs in angiosperms are diploid and triploid, respectively?

1.Polar nucleus and secondary nucleus

2.Microspore mother cell and egg cell

3.Secondary nucleus and endosperm

4.Endosperm and antipodal cells

Posted Date:-2019-03-27 13:42:43


Question:
Which of the following statements about sporopollenin is false?

1.Exine has apertures called germ pores where sporopollenin is present

2.Sporopollenin is one of the resistant organic materials

3.Exine is made up of sporopollenin

4.Sporopollenin can withstand high temperatures and strong acids

Posted Date:-2019-03-27 13:43:35


Question:
Which one of the following is surrounded by a callose wall?

1.Male gamete

2.Microspore mother cell

3.Pollen grain

4.Egg

Posted Date:-2019-03-27 13:40:51


Question:
Which one of the following pairs of plant structures has haploid number of chromosomes?

1.Egg cell and antipodal cells

2.Megaspore mother cell and antipodal cells

3.Egg nucleus and secondary nucleus

4.Nucellus and antipodal cells

Posted Date:-2019-03-27 13:45:13


Question:
Which one of the following statements is wrong?

1.Intine is made up of cellulose and pectin

2.Vegetative cell is larger than generative cell

3.Pollen grains in some plants remain viable for months

4.When pollen is shed at two-celled stage, double fertilization does not take

Posted Date:-2019-03-27 13:46:14


Question:
Which team won the Bombay Gold Cup Hockey Team crown 2019?

1.Indian Oil

2.ONGC

3.Punjab And Sind Bank

4.Bank of Baroda

Posted Date:-2019-03-23 09:15:37


Question:
Which type of association is found in between entomophilous flower and pollinating agent?

1.Cooperation

2.Commensalism

3.Mutualism

4.Coevolution

Posted Date:-2019-03-28 09:35:59


Question:
Who has been selected for prestigious Kusumagraj national award for literature?

1.SS Jain Nath

2.VV Shirwadkar

3.Ved Rahi

4.VV Nath

Posted Date:-2019-03-23 09:11:10


Question:
Who was conferred with the Param Vishisht Seva Medal, by President Ramnath Kovind for distinguished services?

1.Bipin Rawat

2.GD Bakshi

3.Devendra Sikri

4.Prabhat Singh

Posted Date:-2019-03-23 09:12:54


Question:
Who was conferred with the Param Vishisht Seva Medal, by President Ramnath Kovind for distinguished services?

1.Bipin Rawat

2.GD Bakshi

3.Devendra Sikri

4.Prabhat Singh

Posted Date:-2019-03-23 09:13:07


Question:
Wind pollinated flowers are

1.Small, producing large number of dry pollen grains

2.Small, brightly coloured, producing large number of pollen grains

3.Small, producing nectar and dry pollen

4.Large, producing abundant nectar and pollen

Posted Date:-2019-03-28 09:34:24


Question:
Wind pollination is common in

1.Legumes

2.Orchids

3.Lilies

4.Grasses

Posted Date:-2019-03-28 09:43:37


More MCQS

  1. Anatomy
  2. Ecology-I
  3. Biology 2019
  4. Biology (living world)
  5. Plant anatomy
  6. CELL STRUCTURES AND FUNCTION
  7. General biology
  8. Human physiology
  9. Ecology-II
  10. Reproduction in plants
  11. Human reproduction
  12. Animal kingdom
  13. Animal kingdom-II
  14. Microorganisms
  15. Natural resources and conservation
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