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During the course of an E. coli transformation laboratory, a student forgot to mark the culture tube that received the kanamycin-resistant plasmids. The student proceeds with the laboratory because he thinks that he will be able to determine from his results which culture tube contained cells that may have undergone transformation. Which plate would be most likely to indicate transformed cells and why?
Give an example of an autosomal trait and explain the phenotype and genotype. Then give an example of a sex-linked trait and explain the basis of sex-linked traits. (Why does it not follow Mendelian genetics?) Please provide a detailed answer.
Hershey and Chase experimented with radioactively labeled phosphorus and sulfur to determine that DNA and not protein is the genetic material.
How many different 'types' of Antibodies are there in the human body? Which cells make you immune to a disease that you were previously exposed to?
A brief explanation of how stress affects cognitive functions, including the roles of the amygdala and the prefrontal cortex. Then provide examples of situations when stress affected your attention, memory, problem solving, or decision making.
A dog homozygous for both dominant traits is mated to a droopy-eared silent follower. The expected phenotypic ratio and genotypic ratio in the F-1 generation.
Write a one to two page summary of the following learning objectives: the most common foodborne illness bacteria in beef / poultry.
The carboxyl group on the C-gamma carbon of glutamatic acid has a pka = 4.3. Determine the concentration of the various ionic species in a 0.01 M solution of glutamatic acid at pH = 5.
Describe the different groupings of bacterial cells. several reasons why it is important to study prokaryotic cell structures.
Describe three ways in which enzyme activity levels in a cell can be regulated. Include at least one example inwhich the substrate itself is involved in regulation, and at leastone in which a non-substrate molecule is involved. For asubstrate/enzy..
in what way or ways could you adjust incubation temperature to grow an organism at less than its optimal growth rate?
Depending on how much information is available, try to find and report what the average lifespan is for that group, factors that influence that lifespan (e.g., diet, lifestyle, etc.), and social factors that influence the value of age in that cult..
What are the main ecological roles of bacteria in food chains and food webs?
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