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1. Bacterial resistance to many antibiotics has become a problem in the medical field making infections hard to treat. What type of natural selection does this represent?2. Many years ago in Idaho there existed a population of horses.40% of the horses had a black coat, 39% of the horses had a whitecoat, while 21% had a coat that was spotted black and white.. Astime went on, due to predatory pressure from wandering wolf packs,the coat color of the horses became mainly spotted, with very fewindividuals with either a black coat or a white coat. What type ofnatural selection took place within the population of horses ? Whatmodern breed of horse might this population represent?
With respect to the substrate for this enzyme, briefly describe the advantage for PLC to being membrane bound.
The effective population sizes were recorded for population over five generations; 100, 120, 17, 40, 88. Estimate the harmonic mean of effective population size for this population?
ndicate with an arrow the direction that DNA Polymerase would elongate the "primer" DNA strand on this double-stranded DNA molecule in the presence of dNTPs.
A newspaper story on AIDS reports that an allele (R) confers complete resistance to HIV when homozygous and that 2% of the human population is resistant (RR).
In horses, the black (B) allele for hair color is dominant over the brown (b) allele and the trotter (T) allele for the two beat gait is dominant over the pacer (t) allele. A black, pacer horse mates with a brown, trotter horse producing a brown, pac..
In dogs, colored fur is dominant to un-colored fur. Black fur color is dominant to brown fur color. The E gene is epistatic to the B gene.
Most transposable elements are flanked by short direct repeats. How are these direct repeats formed? Which of the following is false concerning DNA replication in bacterial cells when compared to eucaryotic cells? Which of the following is false conc..
write a 300- to 750-word summary on the use benefits and risks associated with dietary supplements. respond to each of
Discuss the shifting-mosaic climax community in terms of changing climate: does the shifting-mosaic model provide a gradual successional change, or do communities undergo wholesale replacement?
Which of the recombination process (transformation, conjugation, and transduction) would be most likely to occur in the natural environment? What factors would encourage or discourage your choice from taking?
Tomato plants usually have flowers in small groups and produce fruits that are round and smooth. Three mutations were found: peach (hairy fruits), oblate (flattened fruits), and clustered (with many flowers in a group).
If wind blows at 35 m/s^2 over the house, what is net force on the roof if its area is 240 square meters and the roof is flat? Show all work, with equation and substitution units.
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