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What is the inbreeding coefficient for the offspring of a) a full sib mating, b) an uncle/niece mating, c)1st cousing mating? Explain why such close inbreeding in a generally outbred population may lead to decreased fitness.
My favorite bird is the black crowned night heron. The relative proportion of males to females is hypothesized to vary with season.
Some dogs bark when trailing, others are silent. The barking trait is due to a dominant gene. Erect ears are dominant to drooping ears. What kinds (phenotypes) of pups would you expect from a heterozygous erect-eared barker mated to a droop-eared,..
Insulin is released from pancreatic b cells when blood glucose levels increase and glucagon is released from pancreatic a cells when blood glucose levels decrease.
On average, cells in the Allium root tip divided about once per day. Assuming this is true for the specimen you examined, use your calculations of relative duration to determine how much time, in minutes, Allium cells spend in each phase of mitosi..
what is the effect of uncoupling photosystem 1 from photosystem 2 on the hill reaction and why? how can this be used to develop chemical herbicides? how can this be used to study the relative reaction rates of each photosystem independently?
What would be the effect on ATP production of adding a substance like 2,4-dinitrophenol(alprotonophore) that makes the mitochondrial membrane leaky to protons?
There are other techniques for counting bacteria, such as a direct microscopic count and turbidity. Why is the standard plate count preferred for food?
Although respiration occurs in all living cells, different cells respire at different rates. Explain why. How could you predict the relative respiratory rates of different tissues in fish by microscopic examination of cells?
Suppose a population evolving by genetic drift in which the frequency of allele K is 0.65. What is the probability that at some point in the future allele K will drift to a frequency of 1?
Antibiotics are chemical substances that kill or control the increase of bacteria or other organisms, such as single-celled protists, or fungi.
Practitioners of homeopathic medicine believe that toxic substances, once appropriately diluted, can have healing effects, usually having the opposite effect of the symptoms of the original toxic compound. There are currently over 3,000 homeopathi..
A young woman distance runner has recently not been performing well and has complained of feeling lethargic and sluggish. You perform a graded exercise test to VO2max including blood samples to attempt to determine possible cause.
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