CBSE Questions for Class 12 Medical Biology Biodiversity And Its Conservation Quiz 13 - MCQExams.com

Which of the following countries has the highest biodiversity 
  • Brazil
  • South Africa
  • Russia
  • India
The three top most major crops of the world in terms of major staple food are?
  • Maize > Rice >Wheat
  • Rice > Wheat > Maize
  • Wheat > Maize > Rice
  • Rice > Maize >Wheat
Co-varieties of sugarcane obtained red rot resistance from
  • Saccharum munja
  • S. spontaneum
  • S. arundinaceum
  • S. edula
The zoological name of common hare, found in northern India is
  • Oryctolagus cuniculus
  • Lepus ruficaudatus
  • Dasypus sexcinstus
  • Alactaga indica
Cryopreservation is carried out at
  • -10 to -20$$^{0}$$C
  • -50 to -60$$^{0}$$C
  • -196$$^{0}$$C
  • -100$$^{0}$$C
Find the most appropriate solution.

Gene banks comprise of
  • Seed banks, orchards, tissue culture and cryopreservation
  • Seed banks, tissue culture and cryopreservation
  • Seed banks and cryopreservation
  • Tissue culture and cryopreservation
Orthodox seeds can be preserved for long periods at a temperature of
  • -196$$^o$$C
  • -10 to -20$$^o$$C
  • 0 to - 4$$^o$$C
  • 10 to 15$$^o$$C
Greatest genetic diversity of plants is found in
  • Central America
  • Homelands
  • South America
  • India
'Vavilov mega diversity centre' is in
  • Australia
  • Siberia
  • Andamans
  • Tibet
Dwarfing gene of wheat is ?
  • Pal - 1
  • Atomita - 1
  • Norin - 10
  • Pelita - 2
Which one will be searched for obtaining maximum genetic diversity?
  • Recent varieties
  • Old varieties
  • Wild relatives
  • All of the above
A plant species threatened with possible extinction can be preserved in
  • Herbarium
  • National Park
  • Botanical Garden
  • Gene Bank
Indri indri occurs in
  • India
  • Mauritius
  • Fiji
  • Madagascar
Which one will be best for germplasm collection?
  • Britain
  • France
  • Portugal
  • Peru
An orthodox seed is one which can
  • Tolerate dehydration and low temperature.
  • Tolerate low temperature but not dehydration.
  • Tolerate dehydration but not low temperature.
  • None of the above.
Ginkgo Biloba is no longer an endangered species because of its
  • Ex-situ conservation
  • Off-site conservation
  • In situ conservation
  • Cryopreservation
The concept of "Centres of Origin of Cultivated Plants" was put forward by
  • Swaminathan
  • Mendel
  • Vavilov
  • Borlaug
In a gene bank, genetic material is stored as
  • Genes
  • Seeds
  • Callus
  • Both B and C
Dwarf variety of wheat was developed by
  • M.S. Swaminathan
  • Vavilov
  • Borlaug
  • Both A and C
The presence of diversity at the junction of territories of two different habitats is known as
  • Bottle neck effect
  • Edge effect
  • Warburg effect
  • Pasteur effect
Vavilov collected............. varieties of Wheat
  • 26,000
  • 2,600
  • 4,600
  • 260
A set of bacterial clones, each containing a plasmid or phage is called as
  • Gene pool
  • Genome
  • Gene library
  • Genophore
Given below are a few statements related to biodiversity.
Pick those that correctly describe the concept of biodiversity
  • Biodiversity refers to the different species of flora and fauna present in an area
  • Biodiversity refers to only the flora of a given area
  • Biodiversity is greater in a forest
  • Biodiversity refers to the total number of individuals of a particular species living in an area
The National bird of New Zealand is
  • Pavo cristatus
  • Vultur gryphus
  • Apteryx
  • Cygnus cygnus
Assertion : Bird ringing was carried in 'Harike Pattan Sanctuary'.

Reason : Bird ringing was helpful in bird census.
  • Both the assertion and the reason are true and the reason is a correct explanation of the assertion.
  • Both the assertion and the reason are true but the reason is not a correct explanation of the assertion.
  • The assertion is true but the reason is false.
  • Both the assertion and reason are false.
  • The assertion is false but reason is true.
A number of bacteria with recombinant DNA of same type form
  • Clone library
  • Gene library
  • Gene pool
  • Gene frequency
If at high altitudes, birds become rare, the plants likely to disappear are
  • Pine
  • Orchids
  • Oak
  • Rhododendrons
A typical genomic library consists of DNA fragments about
  • 10 kb
  • 15 kb
  • 20 kb
  • 40 kb
The species diversity of plants on Earth will be
  • 2.4%
  • 22%
  • 8.1%
  • 85%
  • 70%
Consider the following statements (A)-(D), each with one or two blanks.
(A) Bears go into (1) during winter to (2) cold weather.
(B) A conical age pyramid with a broad base represent (3) human population.
(C) A wasp pollinating a fig flower is an example of (4).
(D) An area with high levels of species richness in known as (5).

Which one of the following options, gives the correct fill ups for the
respective blank numbers from (1) to (5) in the statements.
  • (3) Expanding, (4) commensalism, (5) biodiversity park
  • (1) Hibernation, (2) escape, (3) expanding, (5) hot spot
  • (3) Stable (4) commensalism, (5) marsh
  • (1) Aestivation, (2) escape, (3) stable, (4) mutualism
Assertion : Pitti island of Lakshadweep is a sanctuary.

Reason : Lions are protected in Pitti island.
  • If both the assertion and the reason are true and the reason is a correct explanation of the assertion.
  • If both the assertion and the reason are true but the reason is not a correct explanation of the assertion.
  • The assertion is true but the reason is false.
  • Both the assertion and reason are false.
  • The assertion is false but reason is true.
Gene library refers to
  • DNA sequence information maintained in data bank
  • DNA fragments maintained in agarose gel
  • DNA fragments of a genome maintained by cloning in cultured cells
  • Photographs of DNA fragments printed in books
The biodiversity hot spots of India includes
  • Eastern Himalayas
  • Western Himalayas
  • Jammu and Kashmir only
  • Sunderbans
At present the lions (Panthera leo) are found only in 
  • Africa
  • India
  • Both India and Africa
  • Zoos
'Tendwa' is zoologically named as
  • Panthera tigris
  • Panthera leo
  • Panthera uncia
  • Panthera pardus
The environment as a self sustaining system is mainly preserved by 
  • Man
  • Animals
  • Trees
  • Wild life
The in situ conservation of biodiversity is carried by India through
  • National parks
  • Biosphere reserves
  • Wildlife sanctuary
  • All of the above
The subtropical climatic zone lies between
  • $$0-22^{o}$$ latitude
  • $$20^{o}-40^{o}$$ latitude
  • $$40^{o}-60^{o}$$ latitude
  • $$60^{o}-80^{o}$$ latitude
Which of the following bird has gained importance as wild life in recent year?
  • Phesant
  • Egret
  • Indian bustard
  • Pelican
Which one of the following is an example of ex situ conservation?
  • Sanctuary
  • National park
  • Biosphere reserve
  • Zoo
Choose the wrong statement.
  • Species diversity increases as we move away from the equator towards the poles.
  • Stellar's sea cow and passenger pigeon got extinct due to over exploitation by man.
  • Lantana and Eicchornia are invasive weed species in India.
  • The historic 'Convention on Biological Diversity' was held in 1992.
  • Among animals insects are the most species rich taxonomic group.
Which one of the following is the correctly matched pair of an endangered animal and its national park? 
  • Great Indian Bustard - Keoladeo National Park
  • Lion - Corbett National Park
  • Rhinoceros - Kaziranga National Park
  • Wild ass - Dudhwa National Park
Which one of the following pairs of geographical areas show maximum biodiversity in our country?
  • Sunderbans and Rann of Kutch
  • Eastern Ghats and West Bengal
  • Eastern Himalayas and Western Ghats
  • Kerala and Punjab
Animals like cockroach, lizards and mice share buildings of human dwellings. Such animals are
  • Transgenic
  • Transplants
  • Inquilines
  • Endemic
Only ape found in India in its natural habitat is 
  • Orangutan
  • Gorilla
  • Gibbon
  • Champanzee
'Valley of Flowers' is found in 
  • Nilgiri Hill
  • North Eastern Himalayas
  • North Western Himalayas
  • Satpura Hills
Which of the following sanctuaries has been promoted by Punjab Govt. for ecotourism?
  • Chat bir zoo
  • Sultanpur sanctuary
  • Bir Moti Bagh sanctuary
  • Harika lake sanctuary
'Bir Bhunerheri Wildlife Sanctuary' is situated in 
  • Punjab
  • Haryana
  • Rajasthan
  • U.P
Greatest genetic diversity of plants is found in
  • India
  • Africa
  • Central America
  • South America
The method used to conserve vegetatively propagating crops like potato is
  • Ex situ conservation
  • In vitro conservation
  • Cryopreservation
  • All of the above
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