Biology questions
20584 published questions with worked solutions.
- During the transmission of nerve impulse through a nerve fibre, the potential on the inner side of the plasma membrane has which...
- A person is having problems with calcium and phosphorous metabolism in his body. Which one of the following glands may not be...
- In which one of the following the BOD (Biochemical Oxygen Demand) of sewage (S), distillery effluent (DE), paper mill effluent...Not in NEET syllabus
- Which one of the following is not a bioindicator of water pollution?Not in NEET syllabus
- A sequential expression of a set of human genes occurs when a steroid molecule binds to the:
- The Okazaki fragments in DNA chain growth:
- Molecular basis of organ differentiation depends on the modulation in transcription by:
- Inheritance of skin colour in humans is an example of:
- A common test to find the genotype of a hybrid is by:
- During transcription, RNA polymerase holoenzyme binds to a gene promoter and assumes a saddle - like structure. What is it's...
- Two genes R and Y are located very close on the chromosomal linkage map of maize plant. When RRYY and rryy genotypes are...
- In maize, hybrid vigour is exploited by:
- Differentiation of organs and tissues in a developing organism, is associated with:
- The length of DNA molecule greatly exceeds the dimensions of the nucleus in eukaryotic cells. How is this DNA accommodated?
- In cloning of cattle a fertilized egg is taken out of the mother's womb and:
- The two polynucleotide chains in DNA are:
- Probiotics are:
- Increased asthamatic attacks in certain seasons are related to:
- A human male produces sperms with genotypes AB, Ab, aB and ab pertaining to two diallelic characters in equal proportions. What...
- Which one of the following pairs is wrongly matched? (A) Coliforms - Vinegar (B) Methanogens - Gobar gas (C) Yeast - Ethanol (D)...