Question

difference between dna and rna

Answer 1

1.DNA is the genetic material in most of the organisms. It carries hereditary feature from parent to offspring.
1.RNA carries out all genetic activities instead
of DNA
2.DNA is a double stranded molecule.
2.RNA is a single stranded molecule

Answer 2

Answer:

DNA :

• It is called deoxyribonucleic acid.
• It is usually present inside nucleus and some cell organelles.
• It is said to be the genetic material.
• It is usually double stranded.
• It contains million nucleotides.
• It contains deoxyribose sugar.
• There is the presence of nitrogen base thymine along with adenine, cytosine and guanine in DNA.
• DNA transcribes genetic information to RNA.
• It has long life.
• It controls metabolism and variations and other genetic processes.
• It has purine and pyrimidine bases in equal amount.

RNA :

• It is called ribonucleic acid.
• It is present in little amount inside the nucleus and mostly is found in the cytoplasm.
• It is usually single stranded.
• It contains ribose sugar.
• There is the presence of of uracil along with adenine, cytosine and guanine in RNA.
• It cannot replicate.
• It forms polypeptides.
• It can control metabolism under instructions from DNA.
• They are sometimes short lived.
• Purine and Pyrimidines are not present in some constant proportion.