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Q1. The solutions in the two arms of the U-tube shown below are separated by a membrane that is permeable to water and glucose but not to sucrose. Side A is half filled with a solution of 2 M sucrose and 1 M glucose. Side B is half filled with 1 M sucrose and 2 M glucose. Initially, liquid levels on both sides are equal.
At first, in terms of tonicity, the solution in side A with respect to that in side B is
Q2. Compute the surface area of volume ratio of a cube whose sides are 100 um in length to approximate surface area to volume ratio of the fern spore cell.
What genetic information can be obtained by a Punnet Square? What genetic information cannot be determined?
Show diagramatically the effects of inbreeding (assume each genotype only mates with itself) on the allele frequencies of two alleles of the same gene over 3 generations. The starting genotype frequencies are AA=0.25, Aa=0.5, and aa=0.25. Summariz..
Chloroplast thylakoids can be isolated and purified for biochemical experiments. Probes to measure pH are used to measure the interior thylakoid compartment and solution surrounding the thylakoids.
dimples: Kirk Douglas has a prominent indentation (dimple) in his chin, and so does his son Michael. Dimples are inherited as a dominant trait. If Michael's mother does not have dimples, and his wife doesn't have dimples, what is the probability t..
The purity of cytochrome c can be evaluated by the ratio of the molar extinction coefficient (129.1 mM-1cm-1) at 416 nm of the reduced cytochrome c and the molar extinction coefficient (23.2 mM-1cm-1) at 280 of the oxidized cytochrome c.
With stem lenght, how many genetically different gametes can a homozygous dominant (TT) plant and heterozygous (Tt) plant produce?
For the E. coli lac operon, write the partial diploid genotype for a strain that will produce β-galactosidase constitutively (and shows no elevation of levels with induction) and permease by induction.
Hydrogen peroxide is toxic to cells, yet is a common byproduct of the reactions the occur inside the body. How can this compound by changed to become non-toxic?
Provide a brief description of the experiment about cloning a portion of the bacteriophage Lambda genome into a plasmid using previously published works and cite them.
How does regulation of gene expression make it possible for one original cell to give rise to all the different types of cells observed in mature multicellular organisms? Directly relating the this question describe animal development Starting fro..
Define HeLa cells and where did they come from? Using specific examples, discuss how these cells have contributed to the advancement of our understanding of human biology.
A portion of a DNA template strand has the base sequence. Identify the sequence of the mRNA transcribed from this fragmentary template strand sequence.
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