Biology questions
20584 published questions with worked solutions.
- What is the amino acid sequence encoded by the base sequence: UCA UUU UCC GGG AGU of mRNA segment?
- Choose the wrong statement in the process of protein synthesis.
- During protein synthesis, AUG functions as the initiator codon in mRNA. What should be the anticodon on the tRNA molecule that...
- Which antibiotic inhibits interaction between tRNA and mRNA during bacterial protein synthesis?
- tRNA is attached to mRNA by its
- In the protein synthesis, tRNA carrying the amino acid enters from which site of ribosome?
- A naturally occurring coding strand composed of alternating C and U residues would result in the formation of a polypeptide...
- What would happen, if in a gene encoding a polypeptide of 50 amino acids 25^ th (UAC) is mutated to UAA?
- Select the incorrect statement out of the four (I - IV) given below about lac operon.
- Which of the following statements concerning the regulatory genes (R), associated with the lac operon are incorrect?
- According to Jacob and Monod (lac operon) model of gene regulation, inducer substances in bacterial cells probably
- In lac operon, if mutation occurs in the middle gene of the 'structural gene' then
- Select the two correct statements out of the four (I - IV) given below about lac operon. 1. Glucose or galactose may bind with...
- Steps in Human Genome Project (HGP) are 1. Isolation of total DNA. 2. Cloning in suitable vectors. 3. Sequence arrangement by...
- Steps in DNA fingerprinting are Isolation of DNA Digestion of DNA by A Separation of DNA by B Transferring of DNA to C DNA...
- In eukaryotes, the anticodon of tRNA that pairs with the start codon of mRNA during translation is _______. [MHTCET 2023]
- The sequential events that occur during protein synthesis are _______. [MHTCET 2023]
- Which one of the following process occurs inside the nucleus during protein synthesis in a eukaryotic cell? [MHTCET 2022]
- The triplet on coding strand of DNA is ATG. What would be the required anticodon on corresponding tRNA during translation?...
- A cell organelle which lacks membrane, consists of 65% rRNA, 35% proteins and helps in proteins synthesis is ______. [MHTCET 2022]