Tag: botany

Questions Related to botany

An international code of botanical nomenclature was first proposed in the year

botany taxonomic aids taxonomy and systematic botany indian botanical gardens and herbarium importance of herbarium botanical gardens in india

  1. 1930

  2. 1830

  3. 1913

  4. 1813

Show answer
Correct Option: A
Explanation:

ICBN, "International Code of Botanical Nomenclature”, is the collection of rules of scientific nomenclature of plants and was first proposed by Sprague, Hitchcock, Green (1930) but was accepted in 1961. During 12th International congress, Leningrade 1975, ICBN was revised. The revised form was republished in 1978. Thus, ICBN was proposed in 1930. Thus, the correct answer is option A.

Number of botanical gardens and arboreta world wide is

botany taxonomic aids taxonomy and systematic botany indian botanical gardens and herbarium importance of herbarium botanical gardens in india

  1. 1800

  2. 1200

  3. 1050

  4. 850

Show answer
Correct Option: A
Explanation:
  • A botanical garden is a garden dedicated to the collection, cultivation and display of a wide range of plants labelled with their botanical names.
  • An arboretum ( plural - arboreta ) is a botanical collection composed exclusively of trees.
  • Worldwide, there are now about 1800 botanical gardens and arboreta in about 150 countries.
So, the correct option is '1800'.

Number of species growing in botanical gardens world wide is

botany taxonomic aids taxonomy and systematic botany indian botanical gardens and herbarium importance of herbarium botanical gardens in india

  1. 7500

  2. 25,000

  3. 57,000

  4. 80,000

Show answer
Correct Option: D
Explanation:
  • A botanical garden or botanic garden is a garden dedicated to the collection, cultivation, preservation, and display of a wide range of plants labelled with their botanical names or It is an establishment where plants are grown for scientific study and display to the public.
  • There are now estimated to be 1775 botanic gardens in 148 countries around the world with many more under construction.
  •  Kew Royal Gardens in London, England has the world's largest collection of living plants.
  • The number of species growing in botanical gardens worldwide is about 80,000.
  • So,the correct answer is '80,000'.

Botanical gardens mainly serve the purpose of providing.

botany taxonomic aids taxonomy and systematic botany indian botanical gardens and herbarium importance of herbarium botanical gardens in india

  1. Beautiful area for recreation

  2. Reservoir for tropical plants

  3. Ex situ conservation of germplasm

  4. Natural habitat for wildlife

Show answer
Correct Option: C
Explanation:

Botanical gardens are sufficiently large sized tracts where plants belonging to different types and localities are grown for scientific and educational purposes. Botanical gardens mainly serve the purpose of providing ex-situ conservation(conservation of selected rare plants/animals in places outside their natural homes) of endangered plant species.

Study the following statements regarding significance of botanical gardens and select the incorrect one.

botany taxonomic aids taxonomy and systematic botany indian botanical gardens and herbarium importance of herbarium botanical gardens in india

  1. These help in growing important plants of local flora and keeping their record

  2. These help in providing living plant material for research work

  3. These help in growing and maintaining rare and endangered plants

  4. None of these

Show answer
Correct Option: D
Explanation:

Botanical gardens help in
(i) Providing plant material for comparative taxonomic studies.
(ii) Functioning as acclimatisation centres for exotic plants of economic importance.
(iii) Growing and maintaining records of local flora.
(iv) Providing seeds and living materials for different research work.
(v) Growing and maintaining and endangered plants.

A wheat variety, Atlas 66, which has been used as a donor for improving cultivated wheat is rich in ___________.

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  1. Iron

  2. Carbohydrates

  3. Proteins

  4. Vitamins

Show answer
Correct Option: C

Shakti, Rattan and Protina (varieties of maize) are rich in ____________.

botany plant breeding biotechnology for improved food quality plant breeding for food production

  1. Lysine

  2. Glycine

  3. Fats

  4. Carbohydrates

Show answer
Correct Option: A

Biofortification refers to the development of crop plants which are ______________.

botany plant breeding biotechnology for improved food quality plant breeding for food production

  1. Resistant to disease

  2. Resistant to insect pests

  3. Having improved nutritional quality

  4. Having improved iron content

Show answer
Correct Option: C

Select the correct statement regarding an improved variety of transgenic basmati rice. i.e. golden rice.

botany plant breeding biotechnology for improved food quality plant breeding for food production

  1. It does not require the use of chemical fertilisers

  2. It is completely resistant to all insect pests and diseases

  3. It gives high yields but not characteristic aroma

  4. It gives high yields and rich in vitamin A

Show answer
Correct Option: D
Explanation:

Rice is a staple food in many countries, particularly in Asia, but does not contain vitamin A or its immediate precursors. By inserting two genes from Daffodil and one gene from a bacterial species into rice plants, Swiss researchers have produce rice capable of synthesizing β-carotene, the precursor of vitamin A. Vitamin A is required by all individuals as it is present in retina of eyes. Deficiency of vitamin A causes night blindness and skin disorders. This rice is called 'Golden rice' because of the yellow colour of rice grains due to the presence of β-carotene.

So, the correct answer is 'It gives high yields and rich in vitamin A'.

The scientific process by which crop plants are enriched with certain desirable nutrient is called

botany plant breeding biotechnology for improved food quality plant breeding for food production

  1. Crop protection

  2. Breeding

  3. Bio-fortification

  4. Bio-remediation

Show answer
Correct Option: C