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A sample of DNA is exposed to a restriction enzyme for only a limited time. This prevents the DNA sample from being cut at all restriction sites, but does generate the set of all possible restriction fragments between every two cuts (not necessarily consecutive). The following fragment sizes are obtained: { 4, 4, 7, 11, 11, 15, 15, 19, 22, 26 }.
(i) What is the total length of the DNA sequence ?
(ii) Determine the positions of the restriction sites in the DNA sequence.
The following information were obtained in a chemostat for the growth of E. aerogenes on aglycerol-limited growth medium.
A solution of 0.10M acetic acid and 0.10 M sodium acetate has a pH of 4.76. Determine the pKa of acetic acid. What is the Ka for acetic acid?
jeff and trina collected some wildflower seeds from a medow and scattered them along the roadside near their home. As the weather got hotter, some of the seedlings began to wither.
The picture below shows xylem and phloem tissue in a stem. Arrows show the direction of movement of water (gray arrows) and sugar (black arrows). Using your knowledge of water potential,
Explain how incomplete penetrance, variable expressivity, pleiotropy, and genetic heterogeneity can affect the severity of a disease in a family.
Discuss how does the cardiovascular system adapt with chronic endurance training to potentiate greater effects that you described in question 1?
What is an inspiratory capacity (IC) of a person with a tidal volume of 505 ml and an inspiratory reserve volume of 1950 ml? Is this person male or female.
Do the X and Y chromosomes have any homology? Do they pair during meiosis? Do they exchange genetic material?
show herneation of the tonsils of the cerebellum into which anatomic space.
Describe the ABO system of red blood cells classification and explain the significance of blood types.
Explain why is type O blood considered the universal donor? What would happen if a person who was a type B blood type was transfused with type A blood type and discuss the four main types of proteins found in blood plasma and what are their functions..
What happens to the average speeds of the particles in a gas when one increases that gas's temperature?
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