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A particular disease is determined by a recessive gene h. Of theindividuals homozygous for hh, 1/4 die before age 5. Each of theremaining hh individuals produces only 4/5 as many progeny, on theaverage, as HH or Hh individuals. The mutation rate for H --> his 1.6e-6.
(a) At equilibrium what are the frequencies of allele H and h andof genotypes HH, Hh, and hh?(b) What is the mutation load for this locus?(c) Suppose that, due to radioactive fallout, the mutation rateincreases to 3.2e-6. What will be the mutation load in the firstgeneration after this change occurs?(d) What will be the mutation load after a new equilibrium has beenreached?
Compare the mechanism of replication in Rickettsia, virulent phage, and Bdellovibrio. Why do microbiologists believe virulent phage are not living, but Rickettsia and Bdellovibrio are?
Heterozygous black guinea pigs (Bb) are crossed among themselves. What is the probability of producing two black & three white offspring in any order?
Tony who is not diseased has a sister with cystic fibrousis(CF). neither of his parents have (CF).tony is expecting a child with Tina.Tina's family history is unknown.what is the probability that tony is heterozygous for the CF gene? Explain your ..
What is the metabolic exchange between rhizobia and their plant hosts? What does the plant provide in addition to carbon and how does leghemoglobin play a role in this? What metabolic feature of the bacterium is useful to the plant.
Within the two groups define by the bone mass, smaller skeletons have bones with evidence of epiphyseal plates, but larger bones have only a thin line where the epiphyseal plates should be. Give the age group and gender of the individuals in this fin..
How is palmitate made without ATP? I need the entire cycle shown or described in detail. I know that malonyl CoA which is required for palmitate synthesis in fatty acid metabolism uses ATP, so how do we bypass this?
In many organisms including human, some tissues are triploid rather than diploid. The c value for human is 3 x 10^9 bp and a normal diploid cell contains 46 chromosomes. From this information please determine how many chromosomes will be visible i..
Consider a population of 600 individuals, at Harfy Weinberg equilibrium. The two alleles in the population, B and b, cause two distinct phenotypes. Individuals who are BB or Bb are brown whereas individuals who are bb are yellow.
How do Darwin's concepts of evolution and natural selection help explain the diversity of life on Earth today?
The wild type fruit fly, Drosophilia melanogaster, has straight wings and long bristles. Mutant strains have been isolated that have either curled wings or short bristles.
Discuss the principle of segregation? Explain why is it important? Determine the concept of dominance? How does dominance differ from incomplete dominance.
A scientist performed an experiment using 4 different amounts of a new plant fertilizer to determine the effect on plant growth.
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