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Q. Recognize the non-Mendelian mode of inheritance for each of the follow:
A.) A woman from the family with normal cholesterol marries a man with no LDL receptors, and all their children have cholesterol levels twice the normal of the mother.
B.) In humans, skin colour follows a bell-shaped curve, with very few people having very dark or very fair skin; most people have a medium shade.
C.) Duchenne muscular dystrophy is almost always limited to boys, who inherit it from their non-affected mothers, who are heterozygous.
D.) Even though sickle-cell anemia is because of a single allele, it causes a lot of phenotypic changes in those affected.
E.) A white cow crossed with a red bull yields roan calves.
Oceans receive materials from land primarily as runoff from rivers. Which of the statements is true regarding the materials and nutrients found in the oceans? Most elements that enter the oceans from other compartments remain suspended in the water.
Plants lacking this enzyme grow slowly and are often light green or white in colour. Provide explanations with support for both these plants' slow growth rates and light-green or white appearance.
He says that the mere presence of DNA is not sufficient to prove the point: his cells may have adopted DNA as a useful molecule quite independently of all other known life forms. What would you do to convince him that he was wrong.
The patient lives near the San Luis Rey River and has no history of foreign travel, blood transfusion, or intravenous drug use. What is the disease? How was it obtained.
What are some potential research questions that would be interesting to ask of the species prepare a hypothesis and an experiment to test your hypothesis.
Will victim die, or would the scientist have to go back to the laboratory to invent a more effective death-ray. The DNA is consequently isolated and centrifuged in a CsCl2 gradient to yield what type of gradient band(s).
Both endocrine and nervous system are major regulating system of the body; but nervous system has been compared to an airmail delivery system and the endocrine to pony express. Briefly explain the comparison.
Which of the follow statements regarding cancer risk factors is false. Mutagens are generally not carcinogens.
An electric field with a magnitude of 170 N/C exists at a spot that is 0.11 m away from a charge. At a place that is 0.36 m away from this charge, what is electric field strength.
The mitochondria in them have a protein called thermogenin, which allows the flow of hydrogen ions through an inner mitochondrial membrane (bypassing the ATP synthase). Based on this and your understanding of cellular respiration, propose a mechanism..
Imagine that the sample of sediments are cemented together to form a sedimentary rock. After that, that rock is heated and compressed into a metamorphic rock.
He hopes this will slow the evolutionary development of BT resistant insects. Which seed variety must he use the 10 percent of his field that is not planted with BT 123 seeds.
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