Which one of the following pairs of codons is correctly matched with their function or the signal for the particular amino acid?

1. GUU, GCU - Alanine

2. UAG, UGA - Stop

3. AUG, ACG - Start/methionine

4. UUA, UCA -Leucine

Subtopic:  Genetic Code: I | Genetic Code: II | Genetic Code |
 86%
From NCERT
AIPMT - 2008
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

What is not true for genetic code?

1. A codon in mRNA is read in non-contiguous fashion

2. It is nearly universal

3. It is degenerate

4. It is unambiguous

Subtopic:  Genetic Code: I | Genetic Code: II | Genetic Code |
 84%
From NCERT
AIPMT - 2009
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

The one aspect which is not a salient feature of genetic code, is its being:

1. degenerate

2. ambiguous

3. universal

4. specific

Subtopic:  Genetic Code: III | Genetic Code |
 80%
From NCERT
AIPMT - 2010
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

advertisementadvertisement

Which of the following is not the characteristic feature of genetic code?
1. The codon is triplet
2. The code is nearly universal
3. The code has punctuations
4. Some amino acids are coded by more than one codon, hence the code is degenerate
Subtopic:  Genetic Code |
 89%
From NCERT
NEET - 2024
Please attempt this question first.
Hints
Please attempt this question first.

Identify the correct statements about genetic codons. 
A. AUG is initiator codon and codes for Glycine 
B. UAA codes for Tyrosine 
C. The codons are mostly universal 
D. UAG is terminator codon
E. More than one codon code for single amino acid
1. C, B, D 2. A, D, E
3. C, D, E 4. A, B, C 
Subtopic:  Genetic Code |
 79%
NEET - 2024
Please attempt this question first.
Hints
Please attempt this question first.

The salient features of genetic code are:
(A) The code is palindromic
(B) UGA act as initiator codon
(C) The code is unambiguous and specific
(D) The code is nearly universal
Choose the most appropriate answer from the options given below:
1. (A) and (D) only 2. (B) and (C) only
3. (A) and (B) only 4. (C) and (D) only
Subtopic:  Genetic Code |
 75%
From NCERT
NEET - 2023
Please attempt this question first.
Hints
Please attempt this question first.

advertisementadvertisement

Statement I: The codon AUG' codes for methionine and phenylalanine.
Statement II: AAA' and 'AAG are both codons that code for the amino acid lysine.


In light of the above statements, choose the correct answer from the options given below:

1. Statement I is correct but Statement II is false.
2. Statement I is incorrect but Statement II is true.
3. Both Statement I and Statement II are true.
4. Both Statement I and Statement II are false.
Subtopic:  Genetic Code |
 57%
From NCERT
NEET - 2021
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

From the following, identify the correct combination of salient features of the Genetic Code:

1. Universal, Non-ambiguous, Overlapping
2. Degenerate, Overlapping, Commaless
3. Universal, Ambiguous, Degenerate
4. Degenerate, Non-overlapping, Non-ambiguous
Subtopic:  Genetic Code: I | Genetic Code |
 59%
From NCERT
NEET - 2019
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

Which one of the following is the starter codon?
1. UGA 2. UAA
3. UAG 4. AUG
Subtopic:  Genetic Code: I | Genetic Code |
 93%
From NCERT
NEET - 2016
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

advertisementadvertisement

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?

1. 11

2. 33

3. 333

4. 1

Subtopic:  Genetic Code |
 72%
From NCERT
NEET - 2017
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch