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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.
Discuss the most important SIMILARITIES & DIFFERENCES between DNA repication and RNA trnascreption?
define in your own words how Christian Anfinsen's ribonuclease renaturation experiments showed that amino acid sequence determines tertiary structure.
If the genotype of an organism is YySsTt, then yST would represent. the genotype of the offspring. a gamete of that parent organism. a possible phenotype of the offspring.
How many grams of methane should be combusted to heat 1.30 of water from 24.0 to 92.0, assume as product and 100 percent efficiency in heat transfer.
Phenylalanine deaminase positive and phenylalanine deaminase negative culture. Determine the purpose of the uninoculated control? What other types of controls would be useful to increase reliability of the test?
Critically explain the environment and outcome of the environmental problems, the strategies and factors which affect the environment and prevention of the environmental strategies with the graphical explanation.
Describe the international standard used for evaluating hearing impairment and how it is used for calculations
I n tomatoes, two alleles of one locus determine the character difference of purple versus green stems
A rather tame ltxnsp was recently found on Easter Island through a retired neurophysiologist. He reported the following measurements of ECF and ICF concentrations
Assume if you were working with an organism like Arabidopsis, Drosophila, or any diploid organism that requires to use sexual reproduction to produce offspring.
Is a catalase test perfromed on colonies from a BAP? State reasons to support your answer.
Birth control is any thing that stop a woman or girl from becoming pregnant, or giving birth. Birth control can mean a wide range of things from contraceptives to other ways of avoiding pregnancy,
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