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In humans, two traits, rolling the tongue and the ability to taste PTC, depend on separate dominant genes located on different chromosomes. A man that can roll the tongue (assume he is homozygous) that cannot taste PTC married a woman that can not roll the tongue that can taste PTC (whose mother can not taste this chemical). What is the probability that their first child will: (write down the cross and your calculations)
a. Either not being able to roll the tongue or not being able to taste PTC?b. Being both able to roll the tongue and able to taste PTC?c. Being both able to roll the tongue and not able to taste PTC?d. Either not being able to roll the tongue or being able to taste PTC?
a.list three reasons why you might choose to stain a particular slide rather than view it as a wet-mount.b.define the
What do we call a cluster of chlorophyll molecules found inside the thyroid.
discuss in-depth the entire invasion-metastasis cascade. i want a comprehensive discussion about the steps in this
q1. imagine there are 25 different species of protists living in a tide pool. some of the species reproduce both
Evolution is considered the unifying theme of biology. How do cell ultrastructures support this idea? Provide examples of modifications and specializations in specific types of cells.
How organismal respiration and cellular respiration are interconnected. While you visit him, his teeth are chattering, his skin is cool and clammy to touch, and he complains of feeling cold even though his room is quite warm. Elucidate his symptoms.
Suppose that a husband and wife are both heterozygous for a recessive allele for albinism. If they have dizygotic (two-egg) twins, whats the probability that both the twins will have the same phenotype for pigmentation?
Suppose the G and R genes are on the same chromosome but separated by 80 map units. What fraction of the progeny from the cross Gr/gR × GR/GR would begr/GR.
Of course, the development of an adult organism from a zygote isn't quite that simple. In addition, things can go awry with cell division - notably the transformation of normal cells into cancer cells that divide in an uncontrolled way.
Suppose that a population of 1500 Tasmanian Devils is in H/W equilibrium for a gene that determines fang length. The allele for long fangs is dominant to the allele for short ones.
Mutants in msh6 have a high mutation rate, not surprising for a protein involved in repair. Double mutants of dbp2 and msh6 show a HUGE increase in mutation rate, far higher than either single mutant.
Researchers have adapted the principles of affinity chromatography to purify different types of protein, including lectin, recombinant protein and antibodies. Describe the ligand and matrix associated with isolating each of these three proteins.
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