2) Consider a hairy pea plant that was grown from yellow seed (an F1 hybrid). This...

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Biology

2) Consider a hairy pea plant that was grownfrom yellow seed (an F1 hybrid). This hybrid had one parent (P1)that was an inbred variety with no hairs and was grown from a greenseed. P2 was also an inbred variety, but grown from a yellow seedand had hairy leaves.
After a backcross of the F1 hybrid to the P1parent the following progeny are observed.
Yellow seed/SmoothÂ Â Â Â Â Â Â Â Â Â Â Â Â 29
Yellow seed/HairyÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 82
Green seed/SmoothÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â 9
Green seed/HairyÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 30
a) What is the null hypothesis for the ratio ofprogenies based on the backcross described above.
b) Using a Chi square statistical test, do youreject or fail to reject the null hypothesis. Show yourcalculations.
c)Is there an easy explanation for yourconclusion?

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4.4 Ratings (551 Votes)

a Null hypothesis The observed values are not deviating from expected mendilian dihybrid test cross ratio ie 1111 b Test static Chisqaure test Category Yellow seed Hairy See Answer

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