List of top Biology Questions

The centriole undergoes duplication during:

The organelles that are included in the endomembrane system are :

Veneral diseases can spread through : (a) Using sterile needles (b) Transfusion of blood from infected person (c) Infected mother to foetus (d) Kissing (e) Inheritance Choose the correct answer from the options given below.

Which of the following statements is incorrect?

Which of the following algae produce Carrageen?

Which of the following characteristics is incorrect with respect to cockroach ?

Which one of the following is an example of Hormone releasing IUD ?

Which of the following stages of meiosis involves division of centromere?

Which of the following secretes the hormone, relaxin, during the later phase of pregnancy ?

Which of the following plants is monoecious?

Which of the following is not an application of $PCR$ (Polymerase Chain Reaction)?

Which one of the following belongs to the family Muscidae ?

Which of the following is not a step in Multiple Ovulation Embryo Transfer Technology $(MOET)$?

Match Column - I with Column - II. Choose the correct answer from options given below.

Match List - I with List - II. Choose the correct answer from the options given below.

Gemmae are present in:

Following are the statements about prostomium of earthworm. (a) It serves as a covering for mouth. (b) It helps to open cracks in the soil into which it can crawl. (c) It is one of the sensory structures. (d) It is the first body segment. Choose the correct answer from the options given below.

Following are the statements with reference to ??ipids. (a) Lipids having only single bonds are called unsaturated fatty acids. (b) Lecithin is a phospholipid. (c) Trihydroxy propane is glycerol. (d) Palmitic acid has 20 carbon atoms including carboxyl carbon. (e) Arachidonic acid has 16 carbon atoms. Choose the correct answer from the options given below.

Persons with 'AB' blood group are called as "Universal recipients". This is due to:

Plasmid $pBR322$ has PstI restriction enzyme site within gene $a m p^{R}$ that confers ampicillin resistance. If this enzyme is used for inserting a gene for $\beta$-galactoside production and the recombinant plasmid is inserted in an E.coli strain

Select the correct pair.

 Identify the types of cell junctions that help to stop the leakage of the substances across a tissue and facilitation of communication with neighboring cells via rapid transfer of ions and molecules

 Match List - I with List - II

 Choose the correct answer from the options given below

Match List - I with List - II.

List - I List - II Choose the correct answer from the options given below

Which one of the following statements about Histones is wrong