Biology questions
20584 published questions with worked solutions.
- A man and a woman, who do not show any apparent signs of a certain inherited disease, have seven children (2 daughters and 5...
- In Ornithine cycle, which of the following wastes are removed from the blood ?
- During transcription holoenzyme RNA polymerase binds to a DNA sequence and the DNA assumes a saddle like structure at that point....
- Centromere is required for :
- Damage to thymus in a child may lead to :
- Prolonged liberal irrigation of agricultural fields is likely to create the problem of :Not in NEET syllabus
- Chlorophyll in chloroplasts is located in :
- Three crops that contribute maximum to global food grain production are :Not in NEET syllabus
- The name of Norman Borlaug is associated with :
- In which one pair both the plants can be vegetatively propagated by leaf pieces ?Not in NEET syllabus
- Which of the following substances, if introduce in the blood stream, would cause coagulation, at the site of its introduction ?
- E. coli cells with a mutated Z gene of the lac operon cannot grow in medium containing only lactose as the source of energy...
- Production of a human protein in bacteria by genetic engineering is possible because :
- Which one of the following characters is not typical of the class-mammalia ?
- Which one of the following phenomena supports Darwin's concept of natural selection in organic evolution ?
- As compared to a C_ 3 plant, how many additional molecules of ATP are needed for net production of one molecule of hexose sugar...
- In a man, abducens nerve is injured. Which one of the following functions will be affected ?
- Protein synthesis in an animal cell occurs :
- One of the most important functions of botanical gardens is that :
- At a particular locus, frequency of 'A' allele is 0.6 and that of 'a' is 0.4. What would be the frequency of heterozygotes in a...