The existence of variant and irregular forms in the same strain or species of bacteria are pleomorphic bacteria. They can assume many shapes. The... View Article
Some methods deployed in labs while identifying bacteria are the following traits - shape, gram staining, capsule (its presence), motility,... View Article
E.coli are rod-shaped, gram-negative bacteria. Size varies between 1-3 x 0.4-0.7 µm and volume in the range 0.6 µm and 0.7 µm. They can appear in... View Article
Bacillus subtilis is a gram-positive and rod-shaped bacterium. When it is cultured on usual nutrient, it forms a circular colony, which is... View Article
Bacterial colonies are a cluster of bacterial cells divided from one bacterium on the solid medium. Following characteristics can be used to... View Article
No, they are not gymnosperms. Fern is a pteridophyte. It is a member of a group of vascular plants which reproduce through spores, having... View Article
In the initial phases of photosynthesis, direct light is essential. Direct sunlight in this stage is required for electrons to excite. They... View Article
Pistil. Ovary is found in the female reproductive part of the flower, Pistil. They have style, stigma and ovary. The ovary in flowering plants... View Article
Golgi apparatus is absent in prokaryotic cells. They are also not found in RBCs of mammals, sperms of pteridophytes and bryophytes. See more:... View Article
Cartilaginous fish such as sharks are ureotelic. However, bony fishes are classified as ammonotelic. Read more by registering at BYJU’S... View Article
In biology, viruses are not grouped under any of the traditional systems of classifications. Instead, a new system of classification has been... View Article
Viruses infects an organism and makes copies of itself. It does this by hijacking the host’s cellular machinery, thereby making new copies... View Article
Viruses primarily infect host cells and make copies of themselves. It does this by hijacking the cellular machinery, which enables it to make new... View Article
Viruses are larger, much more distinct entities than prions and viroids. On the other hand, viroids are composed of only a single stranded RNA... View Article
All viruses have either DNA or RNA as their genetic code. Furthermore, their genetic code is protected by an external protein coat. Full... View Article
Some of the most well-known viruses include: Human immunodeficiency virus (AIDS) Varicella zoster virus (Chicken pox) Human papillomavirus... View Article
