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Crossing over and Linkage...

Crossing over and Linkage

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Linkage is the tendency of certain loci or alleles (genes) to be inherited together while, crossing over is the segregation of gene e.g. The genes on a chromosome either follow linkage path or cross over to form the gametes during gametogenesis in human.
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Crossing over is the exchange of genetic material between ______chromatids of homologous chromosomes.

It can be considered as an important event for evolution. (A) Crossing over (B) Cytokinesis (C) Interphase (D) Synapsis

what is linkage?

STATEMENT-1: A man can cross river of width d in minimum time t . On increasing river velocity, minimum time to cross the river by man will remain unchanged. STATEMENT-2: Velocity of river is perpendicular to width of river. So time to cross the river is independent of velcoity of river.