STANDARD Botany Questions

Difference between the prokaryotic and eukaryotic cells in having

The study of inter-relationship between living organisms and their environment is called

Red data book provides data on

Which stage connecting link between Meiosis I and Meiosis II in

Bacteria and fungi in a forest ecosystem are generally

The linking of antibiotic resistance gene with the plasmid vector became possible with

Chargoff's rule states Or Which one of the following ratio is constant in DNAs of different species

The roots that originate from the base of the stem are

Who is considered as father of genetics

Phloem in gymnosperms lacks

Membrane-bound organelles are absent in

These processes are necessary for the complete development of male gametophyte from pollen mother cell

Which one of the following aspects is an exclusive characteristic of living things

The dough kept overnight in warm weather becomes soft and spongy because of

Fermentation takes place

The law of limiting factor for photosynthesis was enunciated by

Agar-Agar is obtained from

Highest growth is found in

Exine of pollen grains is composed of

Regeneration of damaged growing grass following grazing is largely due to

The significance of light and chlorophyll in photosynthesis was discovered by

G₀ state of cells in eukaryotic cell cycle denotes

One of the oldest food items in which microbes were used is _______

The living organisms can be unexceptionally distinguished from the non-living things on the basis of their ability for

The food chain is a series of the population which starts with producers. It is concerned with

Which of the following is the exception of cell theory

Bacteria which play a great role in recycling nutrients like nitrogen, phosphorus, iron and sulphur are:

The organization which publishes the Red List of species is

Ecology takes into account only

Purines of DNA are represented by

Biotechnology deals with techniques of

The anaerobic process after glycolysis is called

______ and _____ were the proportion of plants that were dwarf & tall in F₂ generations of monohybrid cross.

In the diagram given above, some of the algae have been labelled as 'A', 'B', 'C', 'D' and 'E'. These algae are respectively identified as

Sweet potato is a modified

Assertion (A) : Measurement and comparison of the total plant growth per unit time is not absolute growth rate. Reason (R) : The growth of given system per unit time as percentage of initial size is called the relative growth rate What of the following is true?

Companion cells are closely associated with

Who proposed the "Cell theory"

Watson and Crick are known for their discovery that DNA

How many meiotic divisions are necessary to produce 100 pollen grains

Community is

Mitosis occurs in

It is now possible to breed plants and animals with desired characters through

C₆H₁₂O₆ + 2ADP + 2Pi → 2C₂H₅OH + 2ATP + 2CO₂↑

The alleles are

Choose the correct order of colours with respect to pigments, chlorophyll, phycoerythrin and fucoxanthin

Roots play insignificant role in absorption of water in

Who proposed the cycle of events leading to the fixation of CO₂ in mesophyll and its reduction in bundle sheath

A food chain starts with

_______ are used in detergent formulations and are helpful in removing oily stains from the laundry