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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 the light of the above statements, choose the correct answer from the options given below.
  • a)
    Statement I is correct but Statement II is false
  • b)
    Statement I is incorrect but Statement II is true
  • c)
    Both Statement I and Statement II are true
  • d)
    Both Statement I and Statement II are false
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
Statement I: The codon 'AUG codes for methionine and phenylalanine.St...
The salient features of genetic code are as follows:
(i) The codon is triplet. 61 codons code for amino acids and 3 codons do not code for any amino acids, hence they function as stop codons.
(ii) Some amino acids are coded by more than one codon, hence the code is degenerate.
(iii) The codon is read in mRNA in a contiguous fashion. There are no punctuations.
(iv) The code is nearly universal: for example, from bacteria to human UUU would code for Phenylalanine (phe). Some exceptions to this rule have been found in mitochondrial codons, and in some protozoans.
(v) AUG has dual functions. It codes for Methionine (met) , and it also act as initiator codon.
(vi) UAA, UAG, UGA are stop terminator codons.
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Community Answer
Statement I: The codon 'AUG codes for methionine and phenylalanine.St...
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.

Correct answer: Statement I is incorrect but Statement II is true (Option B)

Explanation:
Statement I: The codon 'AUG codes for methionine and phenylalanine.

The statement is incorrect. The codon 'AUG' is the start codon and it codes for the amino acid methionine. It does not code for phenylalanine. Methionine is the first amino acid in most proteins and it initiates protein synthesis. Phenylalanine is coded by the codons 'UUU' and 'UUC'.

Statement II: AAA' and 'AAG are both codons that code for the amino acid lysine.

The statement is true. The codons 'AAA' and 'AAG' both code for the amino acid lysine. Lysine is an essential amino acid that is involved in protein synthesis. These codons are recognized by the ribosomes during translation and they specify the incorporation of lysine into the growing polypeptide chain.

In conclusion, Statement I is incorrect because the codon 'AUG' codes for methionine and not phenylalanine. Statement II is true because both 'AAA' and 'AAG' code for the amino acid lysine. Therefore, the correct answer is option B.
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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 the light of the above statements, choose the correct answer from the options given below.a)Statement I is correct but Statement II is falseb)Statement I is incorrect but Statement II is truec)Both Statement I and Statement II are trued)Both Statement I and Statement II are falseCorrect answer is option 'B'. Can you explain this answer?
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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 the light of the above statements, choose the correct answer from the options given below.a)Statement I is correct but Statement II is falseb)Statement I is incorrect but Statement II is truec)Both Statement I and Statement II are trued)Both Statement I and Statement II are falseCorrect answer is option 'B'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about 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 the light of the above statements, choose the correct answer from the options given below.a)Statement I is correct but Statement II is falseb)Statement I is incorrect but Statement II is truec)Both Statement I and Statement II are trued)Both Statement I and Statement II are falseCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for 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 the light of the above statements, choose the correct answer from the options given below.a)Statement I is correct but Statement II is falseb)Statement I is incorrect but Statement II is truec)Both Statement I and Statement II are trued)Both Statement I and Statement II are falseCorrect answer is option 'B'. Can you explain this answer?.
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