Question

Find the odd one out from the following:

following:

1) 3-AUG-5'

2) 3-CAC-5'

3) 3-ATAU-5'

4) 3'-GCG-5'
answer is 2 any one please tell the reason​.......plz give the reason I will add in brainlist​

Answer 1

Answer:

3- ATAU-5 it is right ans

Answer 2

Answer:

The odd one among the given options is 3'-ATAU-5'.

Therefore, the option (3) is correct.

Explanation:

• DNA is deoxyribonucleic acid. DNA contains deoxyribose, phosphate group and bases. In the primary structure of DNA contains four types of bases cytosine, adenine, thymine and guanidine. The base composition of DNA varies from one species to another.
• RNA is ribonucleic acid. RNA contains sugar ribose, phosphate group and bases.  DNA contains four types of bases cytosine, adenine, Uracil and guanidine. The sequence of bases in RNA depends upon the sequence of bases in DNA.
• From the above information we can say that the both thymine and uracil cannot be present in a single strand.

1. 3'-AUG-5' strand contains adenine, Uracil  and guanidine. So it could be a strand of RNA.
2. 3'-CAC-5' strand has cytosine and adenine base. So it could be a strand of both RNA and DNA because no base such as Uracil or thymine present to differentiate.
3. 3'-ATAU-5' strand is not possible because uracil and thymine cannot present in same strand.
4. 3'-GCG-5' strand has  guanidine and cytosine. so it could be strand RNA or DNA because guanidine and cytosine present in both RNA and DNA.