Q- How are the chromosomes classified in relation to the position of centromere? Answer- On the basis of position of centromere the chromosomes are mainly classified into four main types: 1. Telocentric 2. Acrocentric 3. Submetacentric 4. Metacentric
Q- Give the chemical nature of nucleolus? Answer- Nucleolus is mainly formed of r-RNA though also contains small amount of DNA and proteins.
Q- How many chromosomes does a human normal diploid cell has? Answer- A normal human diploid cell has 46 numbers of chromosomes.
Q- State two differences between outer and inner nuclear membranes. Answer- The two main differences between outer and inner nuclear membranes are as follows: 1. The inner membrane of nucleus is studded with ribosomes whereas the outer membrane of nucleus is not studded with ribosomes. 2. The inner membrane of nucleus is joint or connected … Read more