The order and sequence of amino acids are defined by
(1) Nucleotides sequences in DNA
(2) Nucleotides sequences in mRNA
(3) Nucleotides sequences in template strand of DNA
(4) Nucleotides sequences in non- template strand of DNA
Formation of peptide bond is
(1) active process
(2) passive process
(3) both active and passive process
(4) neither active nor passive process
Which of the following is incorrect for protein synthesis
(1) Ribosomes are the cellular for protein synthesis
(2) 23s rRNA act as catalyst for peptide bond formation in all organisms
(3) UTR are required for efficient translation process
(4) The ribosome proceeds to the elongation phase of protein synthesis
Untranslated regions (UTRs) are present
(1) before and after the stop codon
(2) after the start codon and before the stop codon
(3) before and after the start codon
(4) before the start codon and after the stop codon
Polypeptides are
(1) dictated by DNA
(2)represented by mRNA
(3)Expresssion of t-RNA
(4)Both 1 and 2
Protein synthesis takes place in
(1) cytoplasm
(2) nucleoplasm
(3) Both 1 and 2
(4) none of these
During density gradient centrifugation, major peaks are formed by
1. bulk DNA
2. repetitive DNA
3. Genomic DNA
4. Both 1 and 3
During density gradient centrifugation, minor peaks represent
(1) bulk DNA
(2)repetitive DNA
(3)Genomic DNA
(4)Satellite DNA
Satellite DNA classification is based on
(1)Base composition
(2)length of segment
(3)no of repetitive units
(4)All of the above
Satellite DNA are
(1) Protein coding
(2)M-RNA coding
(3)non- protein coding
(4)satellite protein coding