Biology questions
20584 published questions with worked solutions.
- Primary function of enteronephric nephridia of Pheretima :
- Anticodon occurs in :
- In three dimensional view the molecule of t-RNA is :
- Function of telomeres in nucleus :
- Spindle fibre unite with which structure of chromosomes :
- Viable material of endangered species can be preserved by :
- Mongolian idiots are due to trisomy in 21st chromosome is called :
- What happens in plants during vascularisation :
- Which of the following ribosomes are engaged in protein synthesis in animal cell :
- First cloned animal :
- Which of the following is initiation codon :
- Method of DNA replication in which two strands of DNA separates and synthesize new strands :
- In Drosophila the XXY condition leads to femaleness whereas in human beings the same condition leads to Klinefelter's syndrome in...
- In which stage of cell cycle, DNA replication occurs :
- Which of the following animals have scattered cells with cell - tissue grade organisation :
- Cleavage in mammals :
- Extranuclear DNA is found in :
- A student observed an algae with chl. 'a' 'd' and phycoerythrin it should belong to :
- What happens in light reaction (Photo chemical reaction) :
- Most of the mutations are :