Subdivisions of Biology

Total Questions: 28

11. Which one of the following is not correctly matched? [U.P. Lower Sub. (Pre) 2015]

CultivationNomenclature of Cultivation
(a) Flower CultivationFloriculture
(b) Crop CultivationAgronomy
(c) Vegetable CultivationHorticulture
(d) Fruit’s CultivationPomology
Correct Answer: (c)
Solution:Horticulture is a special branch of agriculture. Pomology, olericulture, and floriculture fall under this branch. The name floriculture and pomology used in option (b) and (d) are of specific terminology. In option (c), the word horticulture has been used for the cultivation of vegetables, but the correct term for vegetable cultivation is olericulture.

12. The study related to the plants being used as vegetables is called: [Uttarakhand P.C.S. (Pre) 2010]

Correct Answer: (d) Olericulture
Solution:
  • Horticulture:

Horticulture encompasses the cultivation, production, and sale of fruits, vegetables, flowers, herbs, and ornamental plants. It's a vital part of agriculture, providing food, medicinal resources, and aesthetic value.

  • Pomology:

This branch of horticulture specifically studies and cultivates fruit and nut crops.

  • Olericulture:

Olericulture focuses on the cultivation and production of vegetables, including both herbaceous plants for the kitchen and the use of their edible parts.

  • Floriculture:

Floriculture deals with the cultivation and production of flowers, ornamental plants, and foliage for various uses, including cut flowers, pot plants, and landscaping.

13. Which of the following is not correctly matched? [U.P. Lower Sub. (Pre) 2004]

Correct Answer: (c) Pisciculture - Insect of lakh
Solution:
  • Apiculture: is the practice of beekeeping, where honeybees are raised for honey, beeswax, and other products.
  • Sericulture: is the cultivation of silkworms for the production of silk.
  • Pisciculture: is the practice of raising fish, often in ponds or tanks.
  • Horticulture: is the cultivation of plants for food, comfort, and beauty.

14. Which of the following pairs is correctly matched? (word and meaning) [Chhattisgarh P.C.S. (Pre) 2008]

Correct Answer: (a) Lexicography - Compilation of dictionary
Solution:
  • Lexicography: Compilation of dictionary
  • Philology: Study of language structure and its history
  • Entomology: Study of insects
  • Iconography: Study of idols/arts, etc.

15. Lexicography is related to: [Jharkhand P.C.S. (Pre) 2003]

Correct Answer: (b) Compilation of dictionary
Solution:Lexicography is the practice of compiling, writing, and editing dictionaries. It's a scholarly discipline with both practical and theoretical aspects. This focuses on the actual creation of dictionaries, including collecting data, defining words, and organizing entries. This involves studying dictionaries, their structures, and how they are used. It also examines the relationship between words and their meanings.

Lexicography encompasses both general dictionaries (which cover the language as a whole) and specialized dictionaries (which focus on particular subjects, like law or medicine). Lexicographers use various tools, including corpora (large collections of text), online resources, and other reference works, to gather information and compile their dictionaries.

16. Which one of the following is produced through viticulture? [U.P.P.C.S. (Mains) 2003]

Correct Answer: (d) Grapes
Solution:Viticulture involves understanding the principles of plant biology, soil science, and climate to optimize grape growth and yield. This refers to the practical aspects of grape cultivation, including planting, pruning, pest control, irrigation, fertilization, and harvesting. Viticulture also involves research and development, aiming to improve grape varieties, growing techniques, and vineyard management practices.

Viticulture deals with all the activities that occur within the vineyard, from initial planting to the final harvest, including tasks like:

  • Planting and selection: Choosing appropriate grape varieties and rootstocks for the specific soil and climate conditions.
  • Training and shaping: Pruning and shaping vines to optimize fruit production and airflow.
  • Pest and disease management: Implementing strategies to prevent and control pests and diseases that can affect grapevines.
  • Irrigation: Providing the necessary water to vines throughout the growing season.
  • Fertilization: Supplying essential nutrients to support healthy vine growth and fruit development.
  • Harvesting: Determining the optimal time to harvest grapes based on ripeness and quality.

17. What is Vermiculture? [56th to 59th B.P.S.C. (Pre) 2015]

Correct Answer: (a) The science of raising worms
Solution:The term vermiculture mainly refers to the scientific process of cultivating worms or artificial rearing of worms to decompose organic food wastes into a nutrient-rich material. The output of vermiculture is called vermicompost and is formed by the process in which earthworms consume the farmyard manure and roughages in addition to the wastes from farms and thereby producing it. The produced vermicompost is rich in terms of nutrients and other plant growth-promoting substances, which are capable of supplying necessary mineral nutrients to help and sustain plants' growth.

18. In Vermiculture, the worm used is: [U.P.P.C.S. (Mains) 2005]

Correct Answer: (d) Earthworm
Solution:The term vermiculture mainly refers to the scientific process of cultivating worms or artificial rearing of worms to decompose organic food wastes into a nutrient-rich material. The output of vermiculture is called vermicompost and is formed by the process in which earthworms consume the farmyard manure and roughages in addition to the wastes from farms and thereby producing it. The produced vermicompost is rich in terms of nutrients and other plant growth-promoting substances, which are capable of supplying necessary mineral nutrients to help and sustain plants' growth.

19. Genetics deals with: [53rd to 55th B.P.S.C. (Pre) 2011]

Correct Answer: (d) Heredity and variations
Solution:Genetics is the study of genes, heredity, and genetic variations in living organisms.

Genetics encompasses various aspects of these concepts, including:

  • Mendelian Genetics:

This focuses on the basic principles of inheritance, including the laws of segregation and independent assortment.

  • Molecular Genetics:

This delves into the molecular mechanisms of gene expression and replication.

  • Population Genetics:

This studies the genetic makeup of populations and how it changes over time.

  • Human Genetics:

This specifically focuses on the study of genes and heredity in humans.

20. The study of Gerontology is related to which of the following? [M.P.P.C.S. (Pre) 1993]

Correct Answer: (d) Old age
Solution:The scientific study of old age, the process of ageing, and the particular problems of old people is called Gerontology.