Bacitracin test is one of the antimicrobial disc tests used to determine the susceptibility of bacteria to bacitracin. It is used for distinguishing group A […]
Spore is a resting or dormant cell which is metabolically inactive and is produced during unfavorable conditions like nutrition deficiency, extreme temperature and pH, presence […]
Egg cell or ovum, also known as female gamete is formed by the process of oogenesis in female organisms. They are produced by follicle cells […]
Introduction: In sexual reproduction, development of organisms begins with a fertilized egg or zygote. Zygote divides and re-divides to form an embryo. Embryo is the […]
A gametophyte is the haploid phase in the life cycle of a plant that produces gametes. The process of formation of gametes or germ cells […]
S.N. Self-pollination Cross-pollination 1. Transfer of pollen grains from anther to the stigma of the same flower (typical self-pollination) or another flower of the same […]
The fusion of male gamete and female gamete in sexual reproduction is called fertilization. In angiosperms, the female gamete lies deep in the ovarian cavity, […]
S.N. Euchromatin Heterochromatin 1. It consists of thin and extended chromatin fibers. It consists of thick and compact chromatin fibers. 2. Chromatin fibers are uncoiled […]
Antigen processing and presentation are the means by which protein antigens become associated with self MHC molecules for presentation to T-cells with appropriate receptors. It […]
S.N. Nerve cells Glial cells 1. They are neuronal cells and are also called neurons. They are non-neuronal cells and are also called neuroglia. 2. […]
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