Multiple Choice Questions

Advertisement

Reduction is vascular tissue, mechanical tissue and cuticle is characteristic of 

  • xerophytes

  • mesophytes

  • epiphytes

  • epiphytes


D.

epiphytes

In hydrophytes, vascular tissue and mechanical tissue are reduced. The cuticle is either completely absent or if present, it is thin and poorly developed. 
In xerophytes, cuticle is heavy, well -developed vascular tissue and mechanical tissue are well -developed and differentiated.

590 Views

Advertisement

Peripatus is a connecting link between

  • Ctenophora and Platyhelminthes

  • Mollusca and Echinodermata

  • Annelida and Arthropoda

  • Annelida and Arthropoda

631 Views

Which one of the following is considered important in the development of seed habit?

  • Dependent sporophyte

  • Heterospory

  • Haplontic life cycle

  • Haplontic life cycle

512 Views

A fruit developed from hypanthodium inflorescence is called

  • hesperidium 

  • sorosis

  • syconus

  • syconus

692 Views

The bacterium Bacillus thuringiensis is widely used in contemporary biology as a/an

  • Indicator of water pollution

  • insecticide

  • agent for the production of dairy products

  • agent for the production of dairy products

379 Views

Advertisement

Cyclic-photophosphorylation results in the formation of 

  • NADPH

  • ATP and NADPH

  • ATP, NADPH and O2

  • ATP, NADPH and O2

339 Views

Globulins contained in human blood plasma are primarily involved in 

  • defence mechanisms of the body 

  • the osmotic balance of body fluids

  • oxygen transport in the blood

  • oxygen transport in the blood

476 Views

T O Diener discovered a

  • free infectious RNA

  • free infectious DNA,

  • infectious protein

  • infectious protein

463 Views

Which of the following is a symbiotic nitrogen fixer?

  • Glomus

  • Azotobacter

  • Frankia

  • Frankia

422 Views

Advertisement

An example of axile placentation is 

  • Argemone 

  • Dianthus

  • Lemon

  • Lemon

1082 Views