Advertisements
Advertisements
Questions
What is degeneracy of genetic code?
Explain when is a genetic code said to be degerate.
Advertisements
Solution
Usually, the single amino acid is encoded by a single codon. However, some amino acids are encoded by more than one codon. e.g. Cysteine has two codons, while isoleucine has three codons. This is called the degeneracy of the code. Degeneracy of the code is explained by the Wobble hypothesis. Here, the first two bases in different codons are identical but the third one varies.
RELATED QUESTIONS
Answer the following questions:
What do you mean by central dogma?
Answer the following question in ‘One’ sentence only:
Enlist the histones which form an octamer of nucleosome.
The enzyme required for transcription is _______.
Short Answer Question:
Identify the labeled structures on the following diagram of translation.

- Part A is the _______
- Part B is the _______
- Part C is the _______
Long Answer Question:
Justify the statement. If the answer is false, change the underlined word(s) to make the statement true
The job of mRNA is to pick up amino acids and transport them to the ribosomes.
During elongation of polypeptide chain, sigma factor is
Exon segments are reunited after splicing by
Define mutation. State its two types.
Describe the mechanism of translation with the help of neat and labelled diagram.
____________ refers to the process of copying of genetic information from one (template) strand of DNA into a single stranded RNA transcript.
______ does not play any role in termination and release of a polypeptide chain.
The mRNA AUGCAGAUACGC recognizes four amino acids and this character of the code referred to as ____________.
Select the INCORRECT statement - ______
The enzyme initiating the formation of mRNA is ______
In a eukaryotic transcription and translation take place ______.
Which one is a cell-coded protein formed in response to infection with most animal viruses:
How many polypeptide chains are present in gamma immunoglobulin?
During taling process number of adenylate residues added at 3' end of hnRNA.
There are 64 codons in the dictionary of genetic code because ______.
Who proposed the Central Dogma of molecular biology and in which year?
