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1. In a species of plant, two genes control flower color. The red allele (R) is dominant to the white allele (r); the color producing allele (C) is dominant to the non-color producing allele (c). You suspect that either an rr homozygote or a cc homozygote will produce white flowers. To test your hypothesis, you allowed heterozygous plants (RrCc) to self-fertilize and counted the offspring in each phenotypic class. You obtained the following data: 201 plants with red flowers and 144 with white flowers.
a. State your null hypothesis for the mode of inheritance for flower color in this species. Be specific about the type of gene interaction in your hypothesis.
b. Conduct a chi-square analysis to see if your observed data are consistent with your hypothesis.
Chimpanzees have 24-pairs of chromosomes. Chimpanzee somatic cells contain DNA double helices.
Assume you use phase contrast microscopy to observe a wet mount of a soil sample and a goo sample. In what ways are potential ET microbes similar to microbes previously characterized on earth?
What is an advantage of using GFP fusions to visualize specific proteins, instead of staining cells with fluorescently labelled probes that bind to the target protein.
Fruit flies have 4-main chromosomes. Fruit flies also have number of body markers that are useful for mapping genes to given chromosomes.
Perform a BLAST search and a result has an E value of about 1 x 10-4. What does this E value mean? What are some parameters on which an E value depends?
Discuss similarities and differences of the anatomical pathways that convey touch sensation and pain. Describe two functional consequences of these differences.
Describe why 0.9 percent NaCl is an isotoinc solution. In another word, please explian the calculation that shows its osmolality is 300mOsm.
A five year old girl displayed increased apetite, increased urinary frequency and thirst. Her physician suspected new onset diabetes mellitus & confirmed that she had elevated urine glucose and ketones.
Assume you have a pure breeding mutant donkey that has very large teeth and very large ears. Both phenotypes are completely recessive to the normal phenotype.
What are the disadvantage and advantage of each and which commonly applies to hospitality industry. How is this caused by the sympathetic nervous division.
Which of following are true of axial musculature:It arises elsewhere, however inserts on the axial skeleton. It makes up 40 percent of the body musculature.
Think about the two linked traits in a population in which half of the individuals are double heterozygotes with genotype AB/ab and the other half are double homozygotes.
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