GENETICS (Autosaved)

GENETICS (Autosaved) - UNIVERSITYOFASIAANDTHEPACIFIC

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UNIVERSITY OF ASIA AND THE PACIFIC   1 ST  SEMESTER COLLEGE OF ARTS AND SCIENCES BIOLOGY LECTURE (CAS 403) Topic:  GENETICS GREGOR MENDEL o Science of heredity o Behavior and appearance is more varied as a result of their diverse genetic  inheritance 2 TYPES/STATE OF A GENE 1. HOMOZYGOUS An organism that is having two identical alleles for a given gene Male x Female Male x Female BB x BB Bb x Bb 2. HETEROZYGOUS An organism that is having two different alleles for a given trait MENDEL’S PRINCIPLE o Science of heredity dates back to ancient attempts at selective breeding  o Heredity is a science; study of genes, genetics o Modern genetics began with Gregor Mendel’s quantitative experiment with  pea plants WHY DID HE USED PEA PLANTS?
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1. Can self fertilize 2. Short life span CROSS FERTILIZATION o Mendel crossed pea plants that differed in certain characteristics and traced 
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GENETICS (Autosaved) - UNIVERSITYOFASIAANDTHEPACIFIC

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