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(1) DNA replication is a method of growth, repair, and recovery. Give me the highlights for a cell making nuclear copies and for cells dividing for reproductive purposes. Not too much detail, because this could get lengthy. I will ask for more depth if I feel you did not cover the topic enough.
(2) Ever notice how presumptive testing uses mainly protein markers while DNA testing does not? You know that DNA is the start and proteins are the result. Explain the role of RNA and give an example of how this supportive polymer could be used in the forensic field.
(3) The first topic this week discussed harnessing the machinery already in place naturally to use for our purposes. So, what is required for PCR and what components of the natural process of replication are we artificially mimicking? As an example, the primers we use in the reaction mimic the ability of the body to select which portion of DNA is replicated. What do the following mimic: Buffer, Taq polymerase. Magnesium. Add any other components you wish.
Describe why heritablility only applies to population (not individuals or species), and how heritability can change without any genetic change occurring.
Consider a cold winter day with air temperature of 5C and relative humidity of about 20% (moisture content 0.001g H2O/g dry air). A person waiting at a bus stop inhales at an average rate of 7g dry air/min and exhales air .
Suppose someone presented data from their research that showed the DNA of a newly discovered species was composed of: 30% adenine, 30% guanine.
How does the total number of replication origins in bacterial cells compare with the number of origins in human cells?
A snapdragon with pink petals, black anthers and long stems was allowed to self-fertilize. From the resulting seeds, 650 adult plants were obtained.
Illustrate one experiment that shows that shh is the critical molecule produced by the inducing tissue referred to in (a). what is the evidence that this tissue regulates the ventral pattern of the neural tube (even before this tissue was known to pr..
During mitosis it is important for sister chromatids to stick together (called "cohesion") during some stages and then separate. Researchers have identified proteins called "cohesins" that are involved in sister chromatid cohesion. If you wanted t..
How do white blood cells carry out recognition and surveillance?
MacConkey Agar gives two results: growth and color change. What does each of the two results tell you about the characteristics and/or biochemical abilities of the organism being tested?
Write a 200- to 300-word reflection describing brain lateralization and its role in language. Provide an example of language disruption as a result of brain trauma
Some DNA lesions can arise in non-replicating cells, whereas others can only occur during replication. Similarly, some repair pathways function in non-replicating cells, whereas others work only during or shortly after replication.
Principles of Biology
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