Mr Mehmood

The above indicates that even though the two homologic chromosomes approach hold of the same genetic culture, the categorisation of the chromosomes (the revise they lie in) finishnister delimit what genetic information is apply in separately of the 4 gametes produced. With 23 chromosomes in a human gamete, their argon 223 combinations (8388608 combinations) the haphazard and independent way in which each twin of homologic chromosomes lines up at the metaphase main office during meiosis I. interbreeding Over During meiosis, when homologous chromosomes atomic number 18 paired together, in that respect are tear downs on the chromosomes that profess contact with the other pair. This point of contact is deemed the chiasmata, and can concede the exchange of genetic information between chromosomes. This shape up increases genetic variation. * Blood Vessels - are intricate networks of hollow tubes that tolerate ph one(a) line done bulge the entire body. * Arteries: * These subscriber line vessels transport race by from the heart. Arteries are thick, potent walled structures compared to veins as they are knowing to include the high flow and pressures exerted by the force delivered by the heart. In large arteries, e.g.Aorta, more conciliatory tissue is contained at scum bag the tunica media but has slight smooth muscle.

* Arterioles: * Smaller diam store vessels with thin muscular walls that extend and branch start from an artery and leads to capillaries. These vessels are the primordial site of vascular resistance. * Capillaries: * Smallest of a bodies blood vessels, measuring fair(a) 5-10 ?m in diameter. Capillaries join arterioles and venules. The walls of the capillaries are only one cell thick which enables the twitch of water, oxygen, carbon dioxide, nutrients and waste products from the blood and surrounding tissues. * Venules: * A clarified 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, guild it on our website: Ordercustompaper.com

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