BIOL 2040 Lecture Notes - Lecture 9: Meiosis, Chromosome, Wild Type
1 Feb 2013
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Direct correlation with mendel: chromosomes are structures having to do with meiosis containing alleles that are transmitted during sexual reproduction. Specific combinations of chromosomes dictated the phenotype of gender: discovery of the chromosomes was done by stevens and vincent, animal model is a meal worm. 50% of the chromosomal make up is the same as in the egg. 50% of the chromosome is like in the male cell. In many organisms, the sex chromosomes are xx/xy. There is a talk about this on a previous lecture. Dictates who is male and female by chromosomes. It is noted that males have 22 pairs and 1 mismactch. It is noted that females have 23 matched pairs. Worked with fruit flies: short generation time, high breeding rate, 2 week generation time. Wild type or abnormal: they have the system of dominant or recessive. Proved chromosomes, that x in this case, are the location of mendel"s heritable factors.
