Solution- Pharmacy's video: Microbiology 12 Ultrastructure of Bacteria Part-04 Final Nuclear Body Endospore Microbiology

Download "Solution Pharmacy" Mobile App to Get All Uploaded Notes, Model Question Papers, Answer Papers, Online Test and other GPAT Materials - https://play.google.com/store/apps/details?id=co.bolton.nqilv Submit and Share your given homework (Only PDF) - https://forms.gle/EepuMs7iipzS8iRw8 The type of nucleus found in prokaryotic cells has been referred to as a nucleoid (meaning nucleus-like), nuclear body, nuclear equivalent or chromatin body. If one examines a thin section of the Gram-negative bacterium E. ... The DNA itself represents only 2 to 3 9, of the weight of the cell. The chromosome of a prokaryote is circular, and its length is very large compared to the cell dimensions needing it to be compacted in order to fit. In contrast to the nucleus of a eukaryotic cell, it is not surrounded by a nuclear membrane. Instead, the nucleoid forms by condensation and functional arrangement with the help of chromosomal architectural proteins and RNA molecules as well as DNA supercoiling. The length of a genome widely varies (generally at least a few million base pairs) and a cell may contain multiple copies of it. There is not yet a high-resolution structure known of a bacterial nucleoid, however key features have been researched in Escherichia coli as a model organism. In E. coli, the chromosomal DNA is on average negatively supercoiled and folded into plectonemic loops, which are confined to different physical regions, and rarely diffuse into each other. Bacterial spores are highly resistant, dormant structures (i.e. no metabolic activity) formed in response to adverse environmental conditions. They help in the survival of the organisms during adverse environmental conditions; they do not have a role in reproduction. Note: Spores of fungi have a reproductive role. An endospore is a dormant, tough, and non-reproductive structure produced by some bacteria in the phylum Firmicutes. The name "endospore" is suggestive of a spore or seed-like form, but it is not a true spore. It is a stripped-down, dormant form to which the bacterium can reduce itself Get in touch with the solution by just clicking following links- Facebook Group- https://www.facebook.com/groups/solutionpharamcy Facebook Page- https://www.facebook.com/pharmavideo/ New Channel (Pharmacy Dictionary) https://www.youtube.com/channel/UCt6OXVV_2oxf5DD0Mad6e9A Instagram- https://www.instagram.com/solutionpharmacy/ E-Mail for official and other work - solutionpharmacy@gmail.com LinkedIn- http://linkedin.com/in/pushpendrakpatel #