An endocrine gland which is bi-lobed, butterfly shaped or shield shaped. This gland secretes different hormones and these hormones have various functions. They increase basal metabolic rate and stimulate growth in children. The functions of various hormones are: A) Action on basal metabolic rate (BMR) Increases the metabolic activities in most of the body tissues. … Read more
Many microorganisms including prokaryotes and eukaryotes respond to adverse conditions by forming spores. When the good condition returns once, the spore germinates and the microorganism returns to its normal life cycle. Among the bacterial group, the genus Bacillus is well known for the formation of endospores which means the spores formed inside the mother … Read more
Important terminologies Genes: Genes are small sections or segments of DNA, called cistrons within the genome that code for proteins. It determines particular character of an organism. It is a hereditary unit which is transmitted from one generation to another. Locus: It is a particular position or place where gene is located on a chromosome. … Read more
S.N Prokaryotic cell Eukaryotic cell 1. An organized nucleus is absent. An organized nucleus is present. 2. Nucleus is represented by packed mass of DNA fibres, which lacks nuclear membrane and nucleoli. It contains chromatin network, nuclear membrane and nucleoli. 3. DNA is naked i.e. it lacks protein association. DNA is covered with histone proteins … Read more