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Does biological evolution have any bearing on moral or ethical aspects of human life? Should biological evolution inform our morality? If biology has no role in discussions of ethics and morality, what should be the basis for these discussions? Is religion an important source of values in your own life and why? Is an basic understanding of human evolution helpful for understanding of human behavior and motivations?
In the tubular flowers of foxgloves, wild type coloration is red while a mutation called whit manufactures white flowers. Another mutation, called peloria, causes the flowers at the apex of the stem to be big.
Explain how incomplete penetrance, variable expressivity, pleiotropy, and genetic heterogeneity can affect the severity of a disease in a family.
Provide a reason why it would be advantageous for eukaryotic cells to evolve elaborate internal membranes systems that allow them to import substances from the outside?
After leaving the end of a ski ramp, a ski jumper lands downhill at a point that is displaced 66.2 m horizontally from the end of the ramp.
Would you expect an ectoparasite, such as a bird louse, that lives its entire life on the body of a homeothermic host, to have a broad thermal tolerance and what about the mite that lives on the bodies of rattlesnakes?
Explain why examples such as the peppered moth, pesticide-resistant insects, and antibiotic-resistant bacteria do not demonstrate evolution.
Assume you want to calculate the rate of oxygen consumption of the left kidney. You know that blood flow to the left kidney is 600mL/min and that the oxygen content of arterial blood is 20mL/100mL blood while the oxygen content of the venous blood..
Most biologists believe that immunes system's defense against infections largely rests on its ability to distinguish self molecules from non-self molecules.
Hematopoietic stem cells cultured in the presence of which receptor differentiate into T cells rather than B cells?
Mobile pieces of DNA - transposable elements - that insert themselves into chromosomes and accumulate during evolution make up more than 40% of the human genome. Element of four types - long interspersed elements (LINEs), short interspersed elemen..
A cross is made between two E. coli strains: (Hfr arg+?bio+?leu+) x (F? arg??bio??leu?). Interrupted-mating studies show that arg+ enters the recipient last, so arg+ recombinants are selected on a medium containing biotin and leucine only.
Can enhancers work in trans? That is, can an enhancer on one piece of DNA activate a promoter on another piece of DNA. Propose an experiment to test this. Be sure to discuss any appropriate control experiments.
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