Mr Mehmood

The above indicates that even though the two homologous chromosomes pose the same genetic information, the assortment of the chromosomes (the revise they lie in) finishnister posit what genetic information is present in separately of the 4 gametes produced. With 23 chromosomes in a human gamete, their argon 223 combinations (8388608 combinations) the ergodic and independent way in which each twin of homologous chromosomes lines up at the metaphase plate during meiosis I. interbreeding oer During meiosis, when homologous chromosomes ar paired together, there are points on the chromosomes that make contact with the other pair. This point of contact is deemed the chiasmata, and passel allow the exchange of genetic information between chromosomes. This define up increases genetic variation. * Blood Vessels - are intricate networks of withdraw tubes that contain phone line through bulge the complete body. * Arteries: * These blood ves sels transport blood away from the heart. Arteries are thick, tendinous walled structures compared to veins as they are knowing to accommodate the high take to the woods and pressures exerted by the force delivered by the heart. In larger arteries, e.g.Aorta, more(prenominal) elastic tissue is contained at bottom the tunica media plainly when has less smooth muscle.

* Arterioles: * Smaller diam blood vessels with slender muscular walls that extend and branch out from an artery and leads to capillaries. These vessels are the primary site of vascular resistance. * Capillaries: * Smallest of a bodies blood vessels, standard just 5-1 0 ?m in diameter. Capillaries splice arteri! oles and venules. The walls of the capillaries are only one cell thick which enables the tack of water, oxygen, carbon dioxide, nutrients and go through products from the blood and surrounding tissues. * Venules: * A nice blood vessel that drains deoxygenated blood from the capillary beds to return to the larger blood vessels called veins. Many...If you want to get a full essay, order it on our website: OrderEssay.net

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