List of top Biology Questions

Comment upon PCR.
Define sex linked inheritance. Explain it with haemophilia and colourblindness.
Describe the Mendel's law of dominance.
What do you mean by polygenic inheritance? Describe with suitable example.
Describe the main characteristic features of Genetic Code.
What is endosperm? Describe the process of its development and functions.
What do you understand by transcription? Describe it.
What is codominance? Explain with an example.
Draw only labelled diagram of a single antibody molecule.
Write short notes on Lichen and Mycorrhiza.
What is Heroin (Morphine)? This is obtained from which plant?
What do you mean by central dogma of Molecular Biology?
How many pairs of chromosomes are found in human beings?
What do you mean by medical termination of pregnancy (MTP)?
Who discovered Penicillin?
What is the function of Sertoli cells in human testes?
Which vitamin is abundantly found in Golden rice?
Widal test is used for the diagnosis of which disease?
The process of protein synthesis with the help of m-RNA is called
Menstrual cycle in women typically occurs in
In Vallisneria, the pollination occurs by means of

Match the immune tolerance mechanisms in Group I with their respective outcomes in Group II

Group IGroup II
P) Anergy1) Elimination of activated T-cells after antigen clearance
Q) Activation-induced cell death2) Inhibition of auto-reactive T-cells at periphery
R) Receptor editing3) Unresponsiveness to antigens due to lack of co-stimulatory molecules
S) Regulatory T-cells4) Elimination of auto-reactive B-cells
Match the types of RNA in Group I with their corresponding function in Group II.
Group I:
P. mRNA
Q. rRNA
R. miRNA
S. tRNA
Group II:
1. Serves as adaptors between mRNA and amino acids during protein synthesis
2. Regulates post-transcriptional gene expression
3. Codes for proteins
4. Forms the core of the ribosome structure and catalyzes protein synthesis
Which one of the following is required for the development of B-cells in the bone marrow?
Which one of the following statements is TRUE about leghemoglobin?