List of top Biology Questions

Which of the following pairs is not an example of homology ?

The suitable location for keeping the beehives is near crop of

Which is the primary lymphoid organ?

Which of the following approach is not used for the treatment of cancer?

Match List -I with List-II

	List -I		List-II
A	Entamoeba histolytica	I	Filariasis
B	Washeteria bancrofti	II	Malaria
C	Microsporum	III	Amoebiasis
D	Plasmodium Falciparum	IV	Ringworm

Choose the correct answer from the option given below:

Which of the following nitrogenous base is NOT present in RNA ?

Identify the regions of the transcription unit
Promoter
Sigma Factor
Terminator
The structural gene
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What will be the number of genotypes and phototypes obtain in F₂ generation when male parent RRyy is crossed with female parent rryy?

Which of the following is an indicator of industrial pollution?

Match List -I with List-II

	List -I		List-II
A	Human skin colour	I	Multiple allelism
B	Pair of alleles expressing contrasting traits	II	Polygenic inheritance
C	ABO blood group	III	Incomplete dominance
D	Antirrhinum Flower colour	IV	Heterozygous

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The sequence of nitrogen bases of the temple strand of DNA in a transcription unit is 3'-ATTGAACTG-5'. The sequence of nitrogen bases in its mRNA transcription would be:

Which of the following genetic disorder is not a type of mendelian disorder?

which layer of microsporangium nourishes the developing pollen grains ?

The process of transformation of spermatids into spermatozoa is known as:

Amniocentesis is used to detect the

which of the following structure is not an example of asexual reproduction ?

Which one is not a barrier method for birth control ?

Arrange the following events of human embryo development in a correct sequence:
(A) Blastocyst Formation
(B) Implantation
(C) Formation of morula
(D) Cleavage in zygote

What will be the number of chromosomes in the gamete of maize it its meiocyte contains 20 chromosomes ?

Match List I with List II

List I		List II
A.	Green house gases	I.	Snow blindness
B.	Electrostatic precipitation	II.	Unleaded petrol
C.	Catalytic converter	III.	Thermal power plant
D.	UV_B radiation	IV.	Global warming

Choose the correct answer from the options given below :

Which of the following has highest level of DDT in an aquatic food chain ?

Select the example of Ex-situ conservation from the following

When a snake eats a rat, that feeds on leaves of green plants. The snake is a ______ in the food chain ?

RNA interference process occurs in ______ as a method of cellular defense.

The "River Popper Hypothesis" was given by.