Identify the wrong statement amongst the following:-
(a) Modified nitrogen bases are also present in t-RNA
(b) s-RNA (soluble RNA) was known before genetic code was postulated
(c) t-RNA are specific for each amino acid
(d) Only one type of t-RNA interacts with all three types of stop codon

Which types of nitrogen bases are present in loops to t-RNA ?

Which is correct - (i) t-RNA has an anticodon loop tht has bases complementary to the code (ii) t-RNA has an amino acid acceptor end (iii) t-RNA are specific for each amino acid (iv) For initiation, there is specific t-RNA that is referred to as initiator t-RNA (v) For termination there is specific t-RNA that is referred to as terminator t-RNA

How many coded nitrogen bases are present in m-RNA from which a polypeptide chain with 60 amino acids is formed in bacteria cells, (including nonsense codon)?

Assertion :- t RNAs are specific for each amino acid but there are no t-RNAs for stop codons. Reason : The secondary structure of t-RNA has been depicted that looks like a colver-leaf.

A sequence of three consecutive bases in a t-RNA molecule which specifically binds to a complementary codon sequence in m RNA is known as _

The following features occur during protein synthesis: (i) Movement of m-RNA from the nucleus into the Cytoplasm, where it binds to the ribosomes (ii) Formation of amino acyl t-RNA complex (iii) Transcription of specific segments of DNA into m-RNA molecules in the nucleus (iv) Binding of N-terminal amino acid, methionine t-RNA to the 'P' site of the ribosome. The t-RNA anticodon "pairs with AUG on m-RNA" (v) Formation of peptide bond between first and second amino acids at the 'A' site (vi) Release of the completed polypeptide chain from ribosomes (vii) Migration of dipeptide to form a tripeptide and then a polypeptide The correct order of events is

Select the incorrect statement about tRNA. (a) tRNA possess an amino acid acceptor at 3' end for binding of amino acids. (b) tRNA is also called soluble RNA. (c) Only single tRNA exists for all 3 stop condons (d) tRNA posses an anticodon loop that has bases complementary to the code.

Consider the following statements and choose the correct option :- (a) Six codons do not code for any amino-acid. (b) Codon is read in m-RNA in a contiguous fashion. (c) Three codons function as stop codons. (d) In eukaryotes the initiator codon AUG codes for methionine.

(a) Name the scientist who called t-RNA an adapter molecule. (b) Draw a clover leaf structure of t-RNA showing the following: (i) tyrosine attached to its amino acid site (ii) anticodon for this amino acid in its correct site (codon for tyrosine Is UAC) (c) What does the actual structure of t-RNA look like?

(a) Name the scientist who called tRNA an adapter molecule (b) Draw a clover leaf structure of t-RNA showing the following : (i) tyrosine attached to its amino acid site (ii) anticodon for this amino acid in its correct site (codon for tyrosine is UCA) (c) What does the actual structure of t-RNA look like.