Home › Quizzes › Biology (Class XI/XII)

Biology (Class XI/XII)

Botany, Genetics, and Environmental Biology - Covers pollination mechanisms, plant reproductive structures and fruit development, chromosomal genetics and evolution, and environmental science topics for Class XI/XII students.

19 Questions Published
Play Quiz Practise this topic out loud

Questions

Question 1 Multiple Choice (Single Answer)

The study of flowers is called

  1. pomology
  2. spermology
  3. mycology
  4. anthology
Question 2 Multiple Choice (Single Answer)

Pollination by snails is called

  1. malcophily
  2. ornithophily
  3. anemophily
  4. hydrophily
Question 3 Multiple Choice (Single Answer)

Environmental planning organisation is

  1. CSIR
  2. NEERI
  3. ICAR
  4. CFTRI
Question 4 Multiple Choice (Single Answer)

When the funicle, chalaza and micropyle lie in one and the same vertical line in the ovule, the ovule is called

  1. anatropus
  2. amphitropus
  3. orthotropus
  4. hemitropus
Question 5 Multiple Choice (Single Answer)

The development of seedless fruits is called

  1. herkogamy
  2. parthenocarpy
  3. parthenogenesis
  4. morphogenesis
Question 6 Multiple Choice (Single Answer)

Field capacity is the extent to which a soil can hold

  1. gravitational water
  2. capillary water
  3. hygroscopic water
  4. capillary, hygroscopic and bound water
Question 7 Multiple Choice (Single Answer)

'Pepo ' fruit is the characteristic of which family?

  1. Cucurbitaceae
  2. Solanaceae
  3. Compositae
  4. Leguminoseae
Question 8 Multiple Choice (Single Answer)

'Pepo ' fruit is the characteristic of which family?

  1. Cucurbitaceae
  2. Solanaceae
  3. Compositae
  4. Leguminoseae
Question 9 Multiple Choice (Single Answer)

What forms the part of future sporophyte in Cycas?

  1. Embryo
  2. Endosperm
  3. Seed coat
  4. Nucellus
Question 10 Multiple Choice (Single Answer)

Which one is a trisomic condition?

  1. 2n-1
  2. 2n+1
  3. 2n-2
  4. XXXX
Question 11 Multiple Choice (Single Answer)

Prothallus represents the

  1. sporophytic phase in pteridophytes
  2. sporophytic phase in gymnosperms
  3. sporophytic phase in angiosperms
  4. gametophytic phase in pteridophytes
Question 12 Multiple Choice (Single Answer)

Datura is an example of

  1. Monosomy
  2. Eupolidy
  3. Trisomy
  4. Inversion
Question 13 Multiple Choice (Single Answer)

Who proved that sulphur bacteria use Hydrogen sulphide in place of water and carbon dioxide to synthesize carbohydrates?

  1. C.B. Van Niel
  2. Nicolas De Saussure
  3. Ruben and Kamen
  4. Robert Hill
Question 14 Multiple Choice (Single Answer)

The branch of science that deals with the study of grasses is called

  1. anatomy
  2. agrology-
  3. agrobiology
  4. agrostology
Question 15 Multiple Choice (Single Answer)

Hydrilla and vallisneria show which type of movement?

  1. Cyclosis
  2. Phototactic movement
  3. Chemotactic movement
  4. Mechanical movement
Question 16 Multiple Choice (Single Answer)

Cremocarp is the characteristic of which family?

  1. Umbelliferae
  2. Pepo
  3. Berry
  4. Cypsella
Question 17 Multiple Choice (Single Answer)

Placentation in leguminosae is

  1. Marginal placentation
  2. Axile placentation
  3. Parietal placentation
  4. Basal placentation
Question 18 Multiple Choice (Single Answer)

Who coined the term gene?

  1. Mendel
  2. Hugo de vries
  3. Morgan
  4. Johanassen
Question 19 Multiple Choice (Single Answer)

The exchange of chromosomal segments between non-homologus chromosomes is called

  1. inversion
  2. heterozygosity
  3. deletion
  4. translocation
← Back to Quizzes