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Discuss the role of enzymes within biological systems and explain how they affect the energy requirements of a chemical reaction. Use the terms catalyst, enzymes, substrate, active site, and enzyme-substrate complex in your explanation.
Determine the possible DNA sequences that produced the four amino acids in the molecules
Discuss the advantages of sexual reproduction in plants over asexual reproduction.
Explain how each of these ideas works and find ways to link between them. Present examples from your experience to demonstrate an understanding of the principles involved.
The "Primordial soup" includes the mixture of elements and gases which are thought to have started life on the Earth. Explain one thing in biosphere you would like to modify. Why do you feel this way? What do you think can be accomplished to implem..
What is a synapomorphy?Why are phylogenetic trees built using synapomorphies? What are the problems with using all derived characters?With any shared character?
Under certain conditions, the rate of mutation of a particular gene may be determines in humans. What properties of the mutation would favour the most direct determination of mutation rate in humans? Write three points.
If individual exons code for individual structural or functional domains within proteins then which of the following are likely outcomes of an insertion of an exon from gene one into another gene?
Food resources are rarely shared uniformly in the environment. Most vary seasonally or have a patchy distribution and can become locally depleted.
Belding's ground squirrels live in colonies. One of the advantages of living in a colony is that predation is decreased because individual squirrels will give alarm calls when a predator approaches the colony. Explain why this behavior of giving a..
In addition to the synthesis of RNAs, ribonucleotides are involved in other critical cellular functions.
Describe three age-related changes in the skin that would account for the decreased ability of the elderly to maintain body temperature homeostasis.
Evaluate the chronic, acute, and carcinogenic effects on human health from the occurrence of indoor and outdoor pollution in a given area.
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