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A recessive allele causes Cystic fibrosis. A man with cystic fibrosis had a son with a normal phenotype. The son marries a woman (unrelated to him) with a normal phenotype. If a normal odds of an heterozygote of getting cystic fibrosis is 1/50, what are the odds that couple's first child will get the disease? And if their first child gets the disease, what can we predict about the odds of the next child getting the disease? Please explain well how to figure this out.
Before freezing, you count your cell suspension in the presence of trypan blue. The initial volume of thecell suspension is 10ml. You add 0.1ml of the cell suspension to 0.1ml of trpan blue.
Discuss the five main types of histone proteins, and describe what role each of them plays in the nucleosome. Based on what you know about them,
Some of the Drosophila you are working with have miniature wings. Suppose you perform the following three crosses to determine the heritance of the miniature wing phenotype.
How can the photosynthesis process be enhanced to fix more CO2 than normal and plant productivity could be increased.
What phenotypes would you expect in the F2, and in what actual numbers (not ratios) would you be expecting to find them. Describe the process of speciation. Comprise in the discussion the factors that can contribute to the maintenance of genetic isol..
Without oxygen, cellular respiration grinds to a standstill, although glycolysis can continue to make some ATP anaerobically for a short time. While oxygen runs out, why does electron transport stop? Why do you thing the Krebs cycle stops.
Describe the different methods that cells use to restrict proteins to specific regions of the plasma membrane. Is a membrane with many anchored proteins still fluid? Explain.
Consider a mainland-island migration scenario where two alleles are segregating and the observed frequencies of heterozygotes are such that H=.32 for the mainland and H=.5 for the island. (These are the values of heterozygosity) What are Pisland a..
Elite controllers are pople with HIV infection whose immune systems naturally keep levels of the virus extremely low. Researchers are conducting genome-wide SNP analyses of these people.
A protein has an apparent mass of 800 kD by gel filtration chromatography, but SDS-PAGE shows a single band at a position corresponding to 200 kD. In an ultracentrifuge, will the protein exhibit a sedimentation coefficient corresponding to 200 kD ..
Unlike steroid hormones, signaling molecules that are large and/or hydrophilic cannot pass through the cell's plasma membrane and therefore must bind extracellularly to receptor molecules in the plasma membrane.
The heart is in the middle thoracic cavity, known as the ______. The membrane around the heart is the ______. The thick muscular wall of the heart is the ______. The smooth inner lining of the heart is the ______.
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