Biology
Nitrogenous bases are important components of DNA. They are formed by the combination of purines and pyrimidines with the help of hydrogen bonds. Which of the following options shows an incorrect combination ?
- Adenine = Thymine
- Guanine ≡ Cytosine
- Cytosine ≡ Guanine
- Thymine = Cytosine
Related Questions
The new cells are to be produced for all except:
- Growth
- Movement
- Repair
- Replacement
The chromosomes are duplicated in :
- M phase
- G1 phase
- S phase
- G2 phase
In the cells of a human male body, the number of autosomes is :
- 23 pairs
- 22 pairs
- 1 pair
- 46 pairs
The basis of genetic variation in the living organisms during mitosis occurs due to :
- Cell division
- Mutation
- Crossing over
- Karyokinesis