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In rumbunnies, sober is an autosomal recessive gene in which the rumbunnies are unable to utilize alcohol. Mating success in rumbunnies is a function of alcohol consumption so that sober individuals have only 75% as many offspring as normal rumbunnies. Assuming that the initial frequencies of S and s are 0.2 and 0.8
A) What are the initial genotypic frequencies (assume Hardy-Weinberg equilibrium)?B) What are the relative fitnesses of SS, Ss, and ss?C) what is the frequency of s after 1 generation of selection?
XPA is a recessive DNA repair disorder that causes skin cancer with even the smallest exposure to sunlight. Heterozygotes (Xx) are carriers, but are not affected. In the U.S., 1/250,000 people have the disease. In Japan, 1 in 22,000 has the diseas..
Imagine you are an estuarine ecologist, and you are surveying oyster populations along the North Carolina coast. Your job entails traveling to various oyster reefs, and sampling the population of each reef using proper population ecology technique..
A dominant allele, B, Causes blaze, a white forelock of hair in humans. The recessive allele fr albinism, a, prevents the formation of melanin in any part of the body, so the hair is white all over.
Though the bone was properly set, by the time boy was 16 it was apparent that the injured lower limb was shorter than normal one. Elucidate why this difference occurred. What caused her symptoms? Was her condition because of an infection or intoxicat..
Which RNA polymerase is used in Lac operon expression? Which one is used in eukaryotic gene expression?
Draw and label the sugar found in RNA, but not DNA. Number the carbons in the sugar.
The following Punnett square shows the inheritance of the sickle cell and SRY genes, with X representing the X chromosome with no SRY gene and Y representative the Y chromosome which does have an SRY gene. Complete the Punnett square.
Under anaerobic conditions (a lack of oxygen), the conversion of pyruvate to acetyl CoA stops. Which of these statements is the correct explanation for this observation?
Compute the ratio of molecular weights of 60S and 40S ribosomal sub-units assuming that sub-units have spherical shape and the same density.
Draw the structures of the functional groups ketone and phenyl at high, low and intermediate pH.
Through meiosis a cell produces how many daughter cells? Are the daughter cells diploid or haploid?
Compare and contrast the reproductive cycle of a non-vascular plant versus a vascular plant versus a multi cellular animal.
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