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General Biology
Compare and contrast a "character" versus a "variant (or trait)".A pea plant with a Tt genotype is crossed to a plant with a tt genotype. What percentage of the offspring do you expect will be dwarf? What is a transgenic organism? Give one example.What is a stem cell? Give two examples of how stem cells may be used to treat human disorders.Briefly describe the method of gene therapy to treat ADA-deficiency? Briefly describe the four stages that led to the first primitive cells?What is chemical selection?What is a molecular clock? What are molecular clocks used for?Define "horizontal gene transfer."List the key physical factors of the environment. Which is usually the most important factor that affects the distribution of organisms.What is the Greenhouse effect? How have humans affected this phenomenon and how has it impacted the Earth's environment?What is Leibig's law of the minimum? Give an example.Briefly describe the carbon cycle.
Briefly describe the three levels of biodiversity. Compare and contrast four hypotheses regarding species diversity and ecosystem function.
Explain the importance of forests and thereforethe importance of forest conservation efforts. Point out particularthreats to forests in your area and efforts that are underway(government or private) to protect those forests.
What are the advantages of using mitochondrial DNA and Y-chromosome DNA to trace human ancestries? How do molecular genetics complement or dispute the fossil (morphological) evidence of human evolution? Please explain your answer and provide speci..
A researcher introduces double stranded RNA into a culture of mammalian cells, and can identify its location or that of its smaller subsections experimentally, using a fluorescent probe.
Why are the hospitalized patients more at risk for UTIs? Which are some of the most common nosocomial infections other than UTIs and why is it hard to treat them?
From which samples did you observe the most and least microbial growth and Why do you think there were differences in the number and types of microbes at the different sampling sites
Normal leg size, characteristic of the Kerry type of cattle, is produced by the homozygous genotype dd. Short-legged Dexter type cattle possess the heterozygous genotype Dd.
It is more chemically correct to refer to reduction as the addition of electrons. Provide an example of a reduction reaction performed by cells in which hydrogen is not added to the reduced compound.
There are four paris of chromosomes in Drosophila: the sexchromosomes (XX in females and XY in males) and three pairs ofautosomes. You are studying a new mutant strain with greeneyes. You want to know if green eye color is a dominantmutation and o..
Abstract about stomata- How to write an abstract: A short description of how the experimental factor affects isopods
Type A rectangle is constructed with its base on the x-axis and two of its vertices on the parabola y=26-x2. What are the dimensions of the rectangle with the maximum area? What is the area?
Sometimes mammalian tumor cells grow so quickly that they outgrow the formation of blood vessels and thus must grow with inadequate oxygen supplies.
draw a food web that includes humans honeybees cows and three plants that are pollinated by bees tomatoes wheat and
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