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9.2 HEREDITY, Heredity: ‘ous outcome of the reproductive process still remains the, , Transmission‘of genetically based characteristics from, parents to offspring., , OR, , The passing down of characters from parents to offspring is, termed heredity., , ** Heredity is controlled by genes. sa ek ees oboe) Bm

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VCHARACTER AND TRAITS, Any heritable feature is a character. The, alternative forms of fa character are called traits., , - —_——, , , , INHERITANCE IN HUMANS, , We inherit thousands of characters from our, parents (father and mother) who in turn, had, inherited them from their parents. Thus the family, members— brothers, sisters, cousins—tend to, resemble one another. Here is a list of some such, , characters and their traits :, 7 | ce Pee ue. ee Wenn ar Abie

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Se ee ee ee ve PO SP er ee UR RPE, Hair shape— or!) or siraight, Eyebrows—ticavy bushy or thin, , >! fN, , Hair on the middle joint of fingers — Growth, or no growth, , 5. Colour vision—Norma! or red-green colour, blindness, , 6. Tongue rolling—olling of tongue into U-shape, when extended out from the mouth or no rolling, , 7. Hand use—Righit-handedness or left-handedness, , 8. Skin colour—A!binism (total absence of pigment, in skin) or norma! (light or dark) pigment., , 9. Ear lobe—/ ree or attached, 10. Lipsp—Thick or thin

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It is naturally self-pollinating and so is very, easy to raise pure breeding individuals., , It has a short life span as it is an annual, and so it was_ possible to follow several, , generations., It is easy to cross-pollinate., It has deeply defined contrasting characters., , The flowers are bisexual.