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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.
What would be the likely immune response ability of an individual with a deletion of a Class II gene of the MHC on one chromosome and a nonsense mutation at the beginning of the sa
Approximate Composition of Human Tissue Table gives the approximate composition of human tissue. We all know that carbon, oxygen, hydrogen are present in water and other organ
Arboriculture : It deals with the cultivation of ornamental plants. Arboriculture is the cultivation, management or study of individual shrubs, trees, vines, or other perennial woo
Is crossing over important for the diversity of biological evolution? The Sexual reproduction and the recombination of linked genes (crossing over) are, along with mutations, t
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S n ake bite Biting by a poisonous snake is manifested by clinical findings of local swelling and nervous symptoms. E t iology: The poisonous snakes have different typ
What the difference is between type I diabetes mellitus and type II diabetes mellitus? Type I diabetes, also called as juvenile diabetes, or insulin-dependent diabetes (this na
Biochemical Changes Many workers have tried to follow the biochemical changes that precede flowering and result in meristems which give rise to flowers instead of vegetative s
what are the examples of sex-influenced traits in human?
Q. On which type of Basis you classify the plants? Linnaeus mainly employed the characters of stamens and carpels and that is why the system is called as Sexual system of class
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