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Explain Crossing Over in genetics?
Crossing over is when the arms of homologous chromosomes exchange segments (and therefore genes) with each other. Recall that one of the homologues originally came from the father's sperm and the other came from the mother's egg.
During Prophase I of Meiosis the homologous chromosomes pair up to form a tetrad. The arms of the chromatids overlap, and can sometimes swap portions. This exchange results in a genetic recombination of the parental genes, providing for genetic variation, the raw material for evolution.
Q. Describe the rationale behind sterilization? Rationale for sterilization: Source of potential infection that exists in dental office include hands, saliva, nasal secretion,
Describe the respiratory organ in pila
Nutrition As we have said earlier all animals are heterotrophs and require food from the environment. What is this food made up of? If the food of a number of different animal
Phosphorylation is the addition of the phosphate monoester to a macromolecule, catalyzed by a particular kinase enzyme. With respect to the proteins, particular amino acid side ch
Ecology is a interdisciplinary branch of science that deals with inter relationship between living organism and their environment. The term ecology (from greek, oikos-meaning ho
Explain about the Probiotics? A mono or mixed culture of living organisms, which when ingested in certain amounts, has a positive impact on host health, beyond conventional nut
Explain Hazard Hazard : A biological, chemical or physical agent that is reasonably likely to cause illness or injury in the absence of its control.
Explain the Occurrence of Vitamin C Vitamin C (ascorbic acid) is an active ingredient present in any animal or vegetable cell which occurs in the plant in free form and also bo
What is the mechanism by which the neural impulse is transmitted along the axon? The neural impulse is transmitted with the neuronal membrane through depolarization of consecu
What is the kingdom Animalia explain? Kingdom Animalia : Kingdom Animalia is separated from the other four kingdoms on the basis of several clearly distinguishing features. T
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