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Question: A couple's only child has Down Syndrome. An examination of the child's karyotype reveals that he has 46 chromosomes per cell, but that one chromosome is unusually large, and appears include large portions of chromosome 14 and chromosome 21. The couple fears that if they have another child, it will also have Down Syndrome. a. Estimate the probability that their next child would have Down Syndrome. Show your work. b. The mother is 25, and learned from her genetics course that for a woman her age, the chance of giving birth to a child with Down syndrome is 1 in 1205. Should the couple expect that their chances of having a Down syndrome child are about 1 in 1205? Explain. (Note for b: you can assume that the observation of 1 in 1205 women having a Down- Syndrome child is accurate. In other words, there was no significant sampling error.)
To demonstrate that you understand the molecules of life you will be creating and explaining the following as models.
Suppose that you have just discovered a new pathogen whose genome contains 29.1 percent A, 22.3% T, 25.8% C, and 22.8% G based on the relative molar concentrations of each nitrogenous base.
are ancestry dna tests(mtDNA,Y-chromosome STR test) reliable.
After verifying that the protein complex was incorporated into liposomes, you put in NADH and incubate at 37°C. You are dismayed to view no color change in the pH indicator dye.
Spatially explicit model shows no evidence of admixture between Eurasians and Neanderthals
Explain in molecular detail how scientists could develop antibiotics that contact multiple sites on rRNAs and /or r-proteins within the bacterial ribosome.
DNA sequences differ between species due to substitution events, i.e. when new mutations arise and become fixed by drift or selection in one of the species.
How do Eukaryotic cells prevent the loss of important information? How do bacteria cope with this problem? These questions are pondered.while DNA is replicated in Eukaryotic cells.
Develop two degenerate primer sequences that will amplify the entire Open reading frame of the corresponding gene in a PCR reaction.
The child is running a fever, has fflu-like symptoms, and his lymph glands are very swollen and sore to the touch. Of what importance are the swollen and sore lymph glands.
Describethe results, in the context of the rate of electron flow through the thylakoid membrane, and is the light saturation effect taking place, based on my results.
Why benefits are strategically significant to employers and what is some main strategic consideration. What parts of the cell did molecules in this tube probably come from? Describe briefly.
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