Geneticsthe - 2 calc was 19.58 while the X 2 crit was only...

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Genetics November 22, 2007 Monday Night The purpose of this lab was to study some genetic crosses in corn, analyze the validity of data from genetics experiments using statistics, and to obtain basic knowledge of human cytogenetics by analyzing karyotypes for chromosomal abnormalities. Discussion : Monohybrid bean cross: 1. The results did support the null hypothesis. 2. The X 2 crit was 3.841, while the X 2 calc was 2.4, which is between .1 and .2 deviations to the left, which is insignificant, giving no reason to doubt the hypothesis. 3. It is important to replace the beans after each time to ensure equal odds of getting a white bean or a black bean. Corn Genetics: 4. For the monohybrid cross, the results did not support the null hypothesis, but for the dihybrid cross, the results did support the null hypothesis. 5. For the monohybrid cross, the X
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Unformatted text preview: 2 calc was 19.58, while the X 2 crit was only 3.841. This was a very large deviation, and gave much room to doubt the null hypothesis. Therefore, the alternate hypothesis is accepted. For the dihybrid cross, the X 2 crit was 7.815, while the X 2 calc was 6.39. Since this is only a small deviation, and the value is less than the crit value, there is no reason to doubt the null hypothesis. 6. Yes, it would be possible to determine that there is dominance for the tall, green plant because the results show a 9:3:3:1 ratio, with the tall green plants representing the 9 value. Karyotypes: 8. #1: Klinefelter’s Syndrome; #2: Down’s Syndrome; #3: Sex-chromosome trisomy; #4: Trisomy-X; #5: Turner’s Syndrome 9. Abnormal chromosomal numbers come about during meiosis due to...
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This note was uploaded on 04/08/2008 for the course BIO 101L taught by Professor Culp during the Fall '07 term at Canisius College.

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