NEET 2017
- Exam
- NEET
- Year
- 2017
- Subject
- Zoology
- Chapter
- Molecular Basis of Inheritance
NEET 2017 · Zoology · Molecular Basis of Inheritance
If there are 999 bases in an RNA that codes for a protein with 333...
If there are 999 bases in an RNA that codes for a protein with 333 amino acids, and the base at position 901 is deleted such that the length of the RNA becomes 998 bases, how many codons will be altered?
Options
- A1
- B11
- C33
- D333
Correct answer
C. 33
Step-by-step solution
33 codons will be altered if the 901st base is deleted and RNA has only 998 bases instead of 999 bases
Total bases present in RNA = 999
Bases left after deletion of 901st base
In RNA = 999 - 901 = 98
3 codon= 1 amino acid
Therefore 98/3= approx 33
A number of codons present in 98 bases= 33 (Approximately as three codons code for one amino acid).
Total bases present in RNA = 999
Bases left after deletion of 901st base
In RNA = 999 - 901 = 98
3 codon= 1 amino acid
Therefore 98/3= approx 33
A number of codons present in 98 bases= 33 (Approximately as three codons code for one amino acid).