What types of ribosome does yeast haveHow yeast transcribe i

What types of ribosome does yeast have?How yeast transcribe it and how proteins gets translated in yeast?

Solution

Yeast have eukaryotic 80s ribosome. Ribosomes are the cellular machines that translate the genetic code in mRNA. Ribosomes play a important role in molecular biology. Ribosomes are fundamental macromolecular machines that convert the encoded information within mRNA into proteins. The 80s ribosome consist of two ribosomal subunits, 60s subunit and 40s subunit. In yeast pol I transcription starts with the recruitment of pol I initiation complex at the rDNA promoter.

Yeast are eukaryotes because their cells have a nucleus.The specific name of ribosome in yeast is eukaryotic ribosome 80s. The size of eukaryotic ribosome is 80s. 80s unit consists of one small 40s and one large 60s subunit. The 40s subunit has 33 polypeptides and 18S rRNA, where as 60S subunit has 50 polypeptides along with 28S,5.8S, 5 rRNA.
Functions: The 40s subunit contains the decoding center which monitors tRNA and mRNA in protein translation.

The three steps of translation is Initiation, Elongation, Termination.Translation occurs in the cytoplasm where the ribosomes are located.The translation process requires mRNA,rRNA,enzymes are Aminoacyl tRNA synthetase.The codon AUG initiates the process of translation and UAA,UAG,UGA is uesd for termination.The TATA box is a DNA sequence that found in promoter region of genes.