Advertisements
Advertisements
प्रश्न
उत्तर
Features of DNA:
(a) DNA consists of two strands which are spirally arranged around an axis. This is called a double helical arrangement.
(b) Each DNA strand is made up of nitrogenous bases, pentose sugar and phosphate.
(c) Sugars are pentose type; bases are adenine, guanine, cytosine and thymine.
(d) Both strands are connected with hydrogen bonds. There are two bonds between adenine and thymine and three bonds between guanine and cytosine.
(e) In the DNA, bases are inside and sugars are outside and two sugars are connected with phosphoric acid.
(f) Each DNA strand replicates and from each replicated DNA a new DNA is formed. This is called replication of DNA.
APPEARS IN
संबंधित प्रश्न
Answer the following question in your own words.
Describe the structure of the DNA molecule.
Write the functional activity of the following structure:
DNA
Multiple Choice Question
DNA structure was discovered by:
Multiple Choice Question:
In the RNA molecule, which nitrogen base is found in place of thymine?
If a DNA has 20 Adenine and 30 cytosine bases. What will be the total number of purine bases in the given sample?
The ______ units form the backbone of the DNA.
DNA consists of two ______ chains.
Which of the following basic proteins DNA is associated?
A nucleoside differs from a nucleotide in not having a ______.
