revision sheet 3rd prep u 3 .doc - Manaret eleman language schools Date:\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026 science department Prep.3

revision sheet 3rd prep u 3 .doc - Manaret eleman language...

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Manaret eleman language schools science department Date:………………………………………………. Prep.3 1-What's meant by: 1- Hereditary traits…………………………………………………………………………… …………. 2-Acquired traits…………………………………………………………………………… ……………. 3-Mendel's first law……………………………………………………………………………… ……. …………………………………………………………………………………… ………………………………………. 4- Mendel's second law……………………………………………………………………………… …. …………………………………………………………………………………… …………………………………….. 5- Pure dominant …………………………………………………………… ………………… ………………………………………………………………………… …………………………………. 6-Hybrid(impure) ………………………………………………………………………… …… …………………………………………………………………………………… …………………………………. 7-Pure recessive …………………………………………………………………… ……………………. …………………………………………………………………………………… ………………………………………. 1
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8-Thr principle of complete dominance…………………………………………………….. …………………………………………………………………………………… ……………………………………… 9- Genes………………………………………………………………………… ………………………………… …………………………………………………………………………………… …………………………………….. 10- Mutation……………………………………………………………………… …………………………… …………………………………………………………………………………… …………………………………….. 11-The spontaneous mutation……………………………………………………………………… …………………………………………………………………………………… ……………………………………… 12-The induced mutations…………………………………………………………… …………………………………………………………………………………… ……………………………………. 2-Using symbols to express the results of mating between each of the following: (show the parents , the gametes, the first filial and the second filial: 1-Two pea plants where one carries white flowers and the other carries purple flowers . 2
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………………………………………………………………………………… ……………………………………… ………………………………………………………………………………… ……………………………………….. ………………………………………………………………………………… ……………………………………… ………………………………………………………………………………… …………………………………… 2-Two pea plants where one carries two traits (long stem and green pod) and the other carries two traits (short stem and yellow pod). ………………………………………………………………………………… ……………………………………… ………………………………………………………………………………… ……………………………………….. ………………………………………………………………………………… ……………………………………… …………………………………………………………………………………… ………………………………… 3-Explain why: 1-Mendel chose the pea plant to conduct his research. …………………………………………………………………………………… …………………………………………………………………………………… …………………………………………………………………………………… …………………………………………………………………………………… …………………………………………………………………………………… …………………………………………………………………………………… …………………………………………………………………………………… …………………………………………………………………………………… …………………………………………………………………… 4-Describe the structure of the DNA .
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