List of practice Questions

A scrubber in the exhaust of a chemical industrial plant removes:

Select the Taxon mentioned that represents both marine and freshwater species

When the margins of sepals or petals overlap one another without any particular direction, the condition is termed as

An aggregate fruit is one which develops from:

Commonly used vectors for human genome sequencing are:

To obtain virus-free healthy plants from a diseased one by tissue culture technique, which part/parts of the diseased plant will be taken?

Fight-or-flight reactions cause activation of:

Stimulation of a muscle fibre by a motor neuron occurs at

Planaria possess high capacity of:

Deficiency symptoms of nitrogen and potassium are visible first in:

How do parasympathetic neural signals affect the working of the heart?

A marine cartilaginous fish that can produce electric current is:

An analysis of chromosomal DNA using the southern hybridisation technique does not use:

Archaebacteria differ from eubacteria in:

If 20 J of energy is trapped at producer level, then how much energy will be available to peacock as food in the following chain?
Plant \(→\) Mice \(→\) Snake \(→\) Peacock

Which one of the following are analogous structures?

Dr. F. Went noted that if coleoptile tips were removed and placed on agar for one hour, the agar would produce a bending when placed on one side of freshly cut coleoptile stumps. What significance is this experiment of?

Non-albuminous seed is produced in:

During which phase(s) of cell cycle, amount of DNA in a cell remains at 4C level if the initial amount is denoted as 2C?

Transformation was discovered by

Given below is a simplified model of phosphorus cycling in a terrestrial ecosystem with four blanks (A-D). Identify the blanks.

In the Kjeldahl's method for estimation of nitrogen present in a soil sample, ammonia evolved from 0.75 gm of sample neutralized 10 mL of 1 M H₂SO₄, The percentage of nitrogen in the soil is: