Transport proteins or transmembrane proteins are the membrane proteins that help in the movement of ions across the hydrophobic lipid bilayer by... View Article
Prions are misfolded or abnormally folded proteins. They have the ability to transmit their misfolded shape to normal proteins and cause fatal... View Article
Protein pumps are transmembrane proteins, which are involved in the active transport of ions across the membrane against the concentration... View Article
Golgi bodies contain different enzymes, which modify proteins it receives from the endoplasmic reticulum. These enzymes are present in the... View Article
The end product of protein digestion is amino acids. Protein is broken down by various proteolytic enzymes in the stomach and duodenum such as... View Article
Proteins are the monomers of amino acids. A protein chain does not exist everywhere as an extended thread, instead, it is folded into secondary... View Article
Proteins are first digested in the stomach by the action of pepsin, which converts proteins into smaller polypeptides. It is secreted by peptic... View Article
Proteins are digested in the stomach and duodenum of the small intestine. The main enzymes that catalyse protein digestion are pepsin secreted in... View Article
Digestion of proteins starts in the stomach with the action of the enzyme pepsin. The peptic or chief cells present in the gastric glands secrete... View Article
The start codon is required at the initiation step. The ribosome subunits bind to mRNA at the start codon, which is AUG. It is recognised by the... View Article
The correct order of stages of translation is initiation, elongation and termination. The first step is the aminoacylation or charging of tRNA.... View Article
Yes, translation is an anabolic process, where proteins are synthesised from amino acids using the genetic information present in mRNA. mRNA is... View Article
Reverse transcription refers to the formation of complementary DNA (cDNA) using RNA as a template. It occurs when viruses, having RNA as genetic... View Article
In negative regulation of transcription, a repressor protein binds to the operator region and inhibits the transcription by RNA polymerase. It... View Article
Prokaryotes do not have a nucleus and other organelles. Prokaryotic cells divide by binary fission, which is similar to mitosis but is less... View Article
Protists are unicellular eukaryotes. Protists undergo meiosis during sexual reproduction. They produce gametes that undergo syngamy to produce a... View Article
Sporic meiosis refers to the formation of spores by meiosis in the sporangia of sporophytes. Pteridophytes show sporic meiosis, i.e. formation of... View Article
Yes, DNA replication occurs at the S-phase to produce identical sister chromatids. It is followed by two rounds of division to produce 4 haploid... View Article
