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Q1. My friend, an inventor, says that she has just made a translucent, light weight metal by combining aluminium with helium and silicon. She wants me to invest $10,000 in process, and promises that we will be millionaires in only six months. What do you think I have to do?
Q2. Imagine looking during a microscope at a squashed onion root tip. The chromosomes of many of cells are plainly visible. In some cells, replicated chromosomes are aligned along center (equator) of the cell. These particular cells are in which stage of mitosis?
Double-stranded DNA molecules have negatively charged sugar-phosphate backbones, and a major and minor groove into which the chemical groups of the bases project.
A marine biologist has dredge up some unknown animal from the seafloor. Describe some of the characteristics she must look at to determine the animal phylum.
From this information, calculate the original water potential, osmotic potential and pressure potential of the epidermal cells, In .1M mannitol the epidermal cells neither gain nor lose weight
During sleep, relay neurons in the thalamus reduce information reaching the cerebrum by altering their membrane potential. Are these neurons more likely to have depolarized or hyperpolarized?
Perform a chi-square test of independence for linkage between genes A and B. What is ?2, the degrees of freedom, and the p-value?
Which of these might cause a proto-oncogene to become an oncogene? a. exposure of the cell to radiation b. exposure of the cell to certain chemicals c. viral infection of the cell d. exposure of the cell to pollutants e. all of these are correct.
The "Primordial soup" includes the mixture of elements and gases which are thought to have started life on the Earth. Explain one thing in biosphere you would like to modify. Why do you feel this way? What do you think can be accomplished to implem..
Retroviruses have been linked to cancer in humans. Explain how they contribute to the formation of cancer.
In an experimental situation, a student researcher inserts an mRNA molecule into the cytoplasm of a eukaryotic cell after she has removed its 5' cap and poly-A tail.
What are some possible functions of MMR effectors (
Determine which of the following can contribute to stabilization of the secondary structure of a protein? (Select ALL that are TRUE.
What can deduce about the structure of this protein. he protein elutes in a void volume on a gel filtration column with a fractionation range of 30kDa to 300kDa
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