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In the mythical beast Nechnüm nreyab, horn length is an example of continuous variation, under the control of five genes: A, B, C, D, and E. Each of these genes segregates an additive and a non-additive allele. Horn length can be: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20 or 22 centimeters long.
a. How many different genotypes encode 20-cm horns? List them all.
b. Consider a cross between AaBBCcddEe and AabbCCDdee individuals. What is the shortest horn possible in the offspring of this cross?
a discuss an example of how human activities can change the environment. b how would enzyme activity be affected if you
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Glucosinolates are compounds produced by some species of plants and toxic to many insects. These compounds therefore provide a defense against those insects. Methylthioalkylmalate synthase (MAM) is an enzyme involved in the synthesis of glucosinol..
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Under certain conditions, the side chains (R-groups) of aspartic acid and lysine can form an ionic bond with one another. The pK for the ionizing groups on these side chains is 3.86 for aspartic acid and 10.53 for lysine.
Imagine looking during a microscope at a squashed onion root tip. The chromosomes of many of cells are plainly visible. In some cells, replicated chromosomes are aligned along center (equator) of the cell. These particular cells are in which stage of..
Explain how plants can regulate temperature and water. Give examples of at least 6 different adaptations and explain the role of each in temperature and/or water regulation.
The four phases of the disposition of a toxic compound to assess its toxicity are absorption by membranes in a system, the distribution throughout the system.
Define growth and note how it applies to bacteria, Describe the process of cell division in bacteria. List and describe the four phases of growth in a bacterial culture and List and describe at least four methods used to measure bacterial growth.
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