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Q1. When stained with the Giemsa dye, human mitotic chromosomes show a characteristic pattern of light and dark 'bands'. The human karyotype contains ~2000 G-dark bands that are visible in high resolution metaphase spreads. If the haploid human genome contains three billion base pairs and encodes ~30,000 genes, roughly how many genes would be removed by a DNA deletion that might be detected by karyotypic analysis?
Q2. What is the main difference between enveloped and nonenveloped viruses? How does this affect entry of each kind of virus into the host cells? Variances are expressed.
Q3. Histone H1 appears to play an important role in the formation of the 300 angstrom fiber, while the other histone proteins do not appear to participate. Why do you think this is true?
In mapping a large plasmid you notice that EcoRI yields 3 bands, HindIII yields four bands and you can detect at least 6 bands on the gel for HindIII/EcoRI digestion.
Find an equation of the tangent plane to the parametric surface r(u,v) = (u*cos(v), u*sin(v), v) at the point defined by u=1, v=pi.
How does the kidney affect blood pressure by regulating salt and water excretion?
If the epidermis is wounded (cut), epithelial cells must migrate out on the ECM of the dermis to cover the wounded area. Epithelial cells migrate through the use of transient focal adhesions.
On an autosome, genes A and B are twenty map units apart. An AABB male mates with an aabb female. What % of the gametes produced by their hybrid offspring will be Ab?
Bacterial and eukaryotic chromosomes are very compact. Discuss the advantages and disadvantages of having a compact structure.
An individual heterozygous for eye color, skin color, and number of eyes mates with an individual who is homozygous recessive for all three characters; what would be the expected phenotypic ratio of their offspring? [Hint: B = black eyes, b = oran..
q1. you stir 10 grams of solid glucose and 10 ml of liquid phospholipids in a 500ml beaker that contains 200ml of
Which of the following is TRUE concerning Meiosis II.
What is the effect on translation of the action of tetracycline? In your answer be sure to describe the normal steps to ribosome assembly and protein translation.
Assume you are studying an enzyme in a large population of a newly discovered diploid plant. You have determined that there are four alleles for this enzyme.
What distinguishes reversible inhibitors from irreversible inhibitors - There is an equilibrium between bound and unbound reversible inhibitor. There usually is little back reaction for the binding of an irreversible inhibitor.
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