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In corn, colored aleurone (R) is dominant to colorless aleurone (r), and green plant color (G) is dominant to yellow plant color (g). two plants, each heterozygous for both characteristics, are testcrossed to homozygous recessives, and their progeny are combined to produce the following totals:
colored green 100colored yellow 97colorless green 103colorless yellow 100
a) use chi-squared analysis to test these data for independent assortment of the two characteristics.b) when the progeny of each of the two heterozygous plants are scored separately, the following results are obtained:
phenotypes plant 1 plant 2colored green 88 12colored yellow 12 85colorless green 9 95colorless yellow 92 8
use chi-squared analysis to test each data set for independent assortment.
c) explain the results of the three chi-squared analyses. what do these analyses tell you about the chromosomal arrangements and the genotypes of plants 1 and 2 and the events that occured during gamete production?
What sequence of nucleotide pairs in a Drosophila gene would encode the amino acid sequence met-trp-phe-trp-met (reading from the amino terminus to the carboxyl terminus).
Madagascar, Indonesia and the Amazon basin have some of the greatest numbers of different species concentrated in a single area. What kinds of environments do you think encourage greater biodiversity.
How might the initial reaction occur in this pathway. as lactate is a "dead end" product of metabolism in the sense that its sole fate is to be converted into pyruvate, what is the purpose of its formation.
a series of protein free patient blood samples at time; 0, 30, 60, 90, 120, 180 mins. I also have a standard sample. I have measured absorbance of these samples; 0.655, 0.717, 0.689, 0.430, 0.852, 0.477 respectively
Due to a spinal injury, a patient has lost pain and temperature sensation on the left half of his body from the waist down. Where is his injury? Where will you expect loss of tactile sensation in this patient.
What is required for photosynthesis and what is the waste product of photosynthesis? Also, given what you know about photosystems and how plants use visible light in photosynthesis.
A man with a chin dimple and a non dimpled woman produce eight children, all having the chin dimple. Can you be certain of the man's genotype? Why or why not? What genotype is more likely, and why gives reason.
select a chromosomal disorder from the March of Dimes Foundation Website.
A researcher wants to develop a test that will distinguish charophytes and land plants from green algae. Which chemicals would be the best subject for such an assay.
There is a general agreement that life should have evolved in the oceans originally and only much later invaded land. What factors of the physical environment on the early and evolving Earth support these ideas? Changes in which of these factors were..
The following experiments are carried out using a pure preparation of enzyme that catalyzes palmitate synthesis from acetyl CoA and malonyl CoA in presence of all the cofactors needed for reaction.If the acetyl CoA is labeled at the methyl carbon.
how can we Compare competitive and noncompetitive.
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