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प्रश्न
Differentiate between the genetic codes given below:
Degenerate and Initiator
उत्तर
Degenerate and Initiator:
| Degenerate | Initiator |
| when an amino acid is coded by more than one codon, it is said to be degenerate. | AUG is an initiator codon i.e. it initiates the translation process & also codes for methionine. |
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संबंधित प्रश्न
Write the contributions of the following scientists in deciphering the genetic code.
George Gamow; Hargobind Khorana; Marshall Nirenberg; Severo Ochoa
Answer the following question.
State the importance of a Genetic code in protein biosynthesis.
The first codon to be deciphered was __________ which codes for ________.
Give reasons: Genetic code is ‘universal’.
Name the anticodon required to recognize the following codon: AAU.
Name the anticodon required to recognize the following codon: CGA
Name the anticodon required to recognize the following codon: GCA.
One of the following is true with respect to AUG.
DNA is a polymer of nucleotides which are linked to each other by 3’-5’ phosphodiester bond. To prevent polymerisation of nucleotides, which of the following modifications would you choose?
Out of A=T, G =C pairing, bases of DNA may exist in alternate valency state owing to arrangement called ______.
Amino acids which are specified by single codons are ______.
Which out of the following statements is incorrect?
The mutations that involve addition, deletion or substitution of a single pair in a gene are referred to as ______.
Sickle cell anemia results from a single base substitution in a gene, thus it is an example of ______.
Select the incorrectly matched pair.
If the sequence of bases in coding strand of DNA is ATTCGATG, then the sequence of bases in mRNA will be ______.
AUG on the mRNA will result in the activation of which of the following RNA having the correct combination of amino acids:
| Site A | Site B | |
| A. | UAC | Methionine |
| B. | Methionine | UAC |
| C. | Methionine | AUG |
| D. | AUG | Methionine |
Percentage of mitochondrial DNA in the cell is:
What would happen if in a gene encoding a polypeptide of so amino acid 25th (UAC) is match to UAA?
Genetic code is universal, it means ______
How many codons code for amino acid?
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.
Based on your understanding of genetic code, explain the formation of any abnormal hemoglobin molecule. What are the known consequences of such a change?
A single base mutation in a gene may not ‘always’ result in loss or gain of function. Do you think the statement is correct? Defend your answer.
Discuss the process of translation in detail.
