List of top Biology Questions

In cockroach respiratory gases directly comes in contact with the various organs of the body. Cockroaches do not have respiratory pigment.
Glycine, an amino acid, comes under the category of non-essential amino acids. The fact behind it is that glycine cannot be synthesized in the body.
DNA fingerprinting involves identifying differences in specific regions in DNA sequence. DNA fingerprinting is the basis of paternity testing.
Auditory ossicles are small bones present in the cavity of inner ear. Auditory ossicles maintain the balance of air pressure between two sides of ear drum.
Adrenaline is called an emergency hormone. It acts on the cells of skeletal, cardiac, smooth muscles, blood vessels and fat cells.
Holandric genes are located
The function of nitrogen fixation in Anabaena (cyanobacterium) is performed by
Centre of DNA Fingerprinting and Diagnostics $(CDFD)$ is located at
$pBR _{322}$, which is frequently used as a vector for cloning gene in $E$. coli is a/an
In a bacterium, the amount of adenine was found to be $18$ percent. Suggest the cytosine base composition from the following
In the blood of an adult man the total content of haemoglobin is roughly
Which one of the following is the best stage to observe the shape, size and number of chromosomes in a cell?
The main function of the white blood cell in the human intestine system is to
Sinking of zooplankton during the day and rising to the surface at night is an example of
Animals take phosphorus from
Okazaki is known for his contribution to the understanding of
Which one of the following is not a lateral meristem?
Which of the following are used in gene cloning ?
Vegetative propagation in Pistia occurs by
Heartwood differs from sapwood in
Given below is the diagram of a stomatal apparatus. In which of the following all the four parts labelled as A, B, C and D are correctly identified?
Genetic engineering has been successfully used for producing
dB is a standard abbreviation used for the quantitative expression of
A renewable exhaustible natural resource is
Which one of the following ecosystem types has the highest annual net primary productivity ?