Tag: botany

Quizzes (264) Questions (5276)

Questions Related to botany

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

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

  1. 1930

  2. 1830

  3. 1913

  4. 1813
Reveal answer Fill a bubble to check yourself
A Correct answer
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.

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

Number of botanical gardens and arboreta world wide is

  1. 1800

  2. 1200

  3. 1050

  4. 850
Reveal answer Fill a bubble to check yourself
A Correct answer
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'.
Multiple choice botany taxonomic aids taxonomy and systematic botany indian botanical gardens and herbarium importance of herbarium botanical gardens in india

Number of species growing in botanical gardens world wide is

  1. 7500

  2. 25,000

  3. 57,000

  4. 80,000
Reveal answer Fill a bubble to check yourself
D Correct answer
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'.
Multiple choice botany taxonomic aids taxonomy and systematic botany indian botanical gardens and herbarium importance of herbarium botanical gardens in india

Botanical gardens mainly serve the purpose of providing.

  1. Beautiful area for recreation

  2. Reservoir for tropical plants

  3. Ex situ conservation of germplasm

  4. Natural habitat for wildlife
Reveal answer Fill a bubble to check yourself
C Correct answer
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.

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

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

  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
Reveal answer Fill a bubble to check yourself
D Correct answer
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.

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

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

  1. Iron

  2. Carbohydrates

  3. Proteins

  4. Vitamins
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Atlas 66 is a famous wheat variety developed through biofortification specifically to increase protein content. It has been widely used in breeding programs to improve the nutritional value of wheat.

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

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

  1. Resistant to disease

  2. Resistant to insect pests

  3. Having improved nutritional quality

  4. Having improved iron content
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Biofortification is the process of increasing the nutritional value of crops through selective breeding or genetic engineering. While it can involve iron, the term broadly refers to improving overall nutritional quality.

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

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

  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
Reveal answer Fill a bubble to check yourself
D Correct answer
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'.

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

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

  1. Crop protection

  2. Breeding

  3. Bio-fortification

  4. Bio-remediation
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Bio-fortification is the specific scientific method used to increase the concentration of vitamins and minerals in crops. It is distinct from crop protection or remediation.