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In a generalized transduction experiment, phages are collected from an E. coli donor strain of genotype cys+ leu+ thr+ and used to transduce a recipient of genotype cys- leu- thr-. Initially the treated recipient populations placed on a minimsl medium with leucine and threonine. Many colonies are obtained.
a) What are possible genotypes of these colonies?b) Strains from theses colonies are then inoculated onto 3 different media. (1) minimal plus threonine only. (2) minimal plus leucine only, and (3) minimial. What genotypes could in theory grow on these 3 media?c) It is observed that 56% of the original colonoes grow on (1), 5% grow on (2) and no colonies grow on (3). What are the actual genotypes of the colonies on (1),(2) and (3)?d) Draw a map showing the order of the 3 genes and which of the 2 outer genes is closer to the middle.
Use information collected from visual comparison or the colorimetric measurements, what were the initial velocities for the uncatalyzed reaction, and those catalyzed by the purified acid phosphatase, and the wheat germ extract.
List and explain at least three cellular features of bacteria that might be targeted to inhibit or kill a bacterial pathogen.
Disease and treatment associated with the neurotransmitter imbalance. Describe the significance of the dopamine neurotransmitter in our body.
In rabbits, a series of multiple alleles controls coat color in the following way, C is dominant to all other alleles and causes full color. The chinchilla phenotype is du the the c ^ch allele,
Cephalochordates and placental mammals both have microlecithal eggs, yet mammalian early development resembles that of birds more than that of amphioxus.
The first paragraph should describe, including numerical information, the standard of living in your chosen undeveloped or developing country. Compare it to equivalent values in the US.
mechanism for ensuring adequate amount of neurotransmitter.
Which of following are true of axial musculature:It arises elsewhere, however inserts on the axial skeleton. It makes up 40 percent of the body musculature.
The most efficient method of generating ATP for most organisms is aerobic respiration.What molecule is needed for aerobic respiration.
According to your results would you say that the radish has a broad pH tolerance? Why or why not? Use your data to support your answer.
A wild-type male and female Drosophila with red eyes and full wings are crossed. Estimating genotype of males.
An analyzer is studying a gene that codes for a very small polypeptide phe his gly cys gly. He treated the cells with different mutagens with the results to the protein.
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