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A bacterial gene is known to spontaneously mutate at a high frequency. A study of one mutant gene product shows that the mutant protein made is shorter than the wildtype protein by four amino acids. The wildtype gene has been cloned and sequenced. It has a region of repeated sequences that code alternately for proline and threonine (see below).Met Pro Thr Pro Thr ..........5'...ATG.........CCC ACG CCC ACG CCC ACG CCC ACG CCC ACG.......TGA....3'a) Clearly explain, using diagrams, how a deletion of four codons could occur in this region and be passed on to progeny.b) Is an insertion of four codons possible? Is an insertion of five codons possible? Explain why or why not in each case
Assume the charge at the center is now increased to +9Q, while the charge at the surface of the conductor is changed to -13Q.
Would you expect any differences in the sizes of the inserts in the two libraries? in brief explain.
What is the dissimilarity between exergonic and endergonic reactions? Give an instance of each. What is the significance of each type of reaction.
What is a main property of DNase that makes it useful for assessing whether chromatin is in a closed (tightly condensed) or open (loosely packed) configuration.
Assume that the habitat is fairly uniform, how various nests would he expect to be in the entire 200-acre preserve.
Discuss the greatest effect on determining which mutations will go to fixation in both a large population and a small population?
Discussing the significance of the neurotransmitters within the neurotransmission. Describing a relationship between the dietary fat intake and related health concerns.
A 3-factor cross in Salmonella typhimurium was performed using bacteriopage P22. The cross between an arg-leu-his- recipient bacterium and bacteriophage P22,
What are the characteristics of the cervical region of the vertebral column in amphibians, reptiles, birds and mammals?
2-dominant mutants in the first linkage group of the guinea pig govern the traits pollex (pX0, which is the ativistic return of thumb and little toe, and rough fur.
What type of cells emphasizes mainly glycolysis for ATP production. What is the biochemistry of acidic and alcoholic fermentation?
A major difficulty in investigating the properties of pancreatic serine proteases is that these enzymes, being proteins, are self digesting. The problem is less severe for solutions of chymotrypsinthan than for solutions of elastase or trypsin.giv..
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