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Two genes are located on the same chromosome and are known to be 12 mu apart. An AABB individual was crossed to an aabb individual to produce AaBb offspring. The AaBb offspring were then crossed toaabb individuals.
If this cross produces 1,000 offspring, what are the predicted numbers of offspring with each of the four genotypes: AaBb, Aabb, aaBb, and aabb?
Determine what would be the forecasted numbers of offspring with these four genotypes if the parental generation had been AAbb and aaBB instead of AABB and aabb?
You are designing a new single-celled organism. Discuss the problems of size, getting molecules like nutrients and wastes in and out, temperature, energy and replication of genetic materials.
Compute the change in allele frequency under the island continent model for gene flow under the follwing conditions
The bacteria are allowed to grow overnight and are streaked on a plate using a technique that produces isolated colonies that are clones of the original. Samples of these colonies are then grown in four different media: nutrient broth plus ampicillin..
If you transform bacteria with the plasmid library made in part b above, divide the transformatnts into 20 aliquots and find one has the insert of interest, now how many clones do you need to screen.
There has not been rain for many months. A biologist is driving down the highway and notices that a big number of corn fields have corn that is wilted and short.
What will the results be for each plant if light only in the 650 nm range is supplied? 500 nm range? 450 nm range? Put in plain words.What colour is each plant? Give details.
define how this cell would be activated the cellular and molecular interaction(s), and the various steps and factors leading to an appropriate immune response to clear the toxin.
When digested DNA is analysed using agarose gel electrophoresis the total size of fragments sometimes does not add up to the size of the original DNA molecule. How can this be explained and how can this be seen in ethidium bromide stained agarose ..
Case study on Salmonella Outbreaks in the U.S.
Compound with amino groupConsider two small, identical, organic molecules in the cytoplasm of a cell, one with a hydroxyl group (-OH) and the other with an amino group (-NH2).
An enzyme and its substrate are combined in a test tube but no product is formed. Another molecule is added to the tube, and now the product is formed at the normal rate. Give 2 reasons.what type of inhibition is working on the substrate.
Male frogs give calls that attract female frogs to approach and mate. Researchers examined mating calls of closely related tree frogs in South America. What outcomes be able to occur where the ranges of two species overlap.
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