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Diatoms are mostly asexual members of the phytoplankton. Diatoms lack any organelles that might have the 9+2 pattern. They obtain their nutrition from functional chloroplasts, and each diatom is encased within two porous, glasslike valves. Which question would be most important for one interested in the day-to-day survival of individual diatoms? A) How does carbon dioxide get into these protists with their glasslike valves? B) How do diatoms get transported from one location on the water's surface layers to another location on the surface? C) How do diatom sperm cells locate diatom egg cells? D) How do diatoms with their glasslike valves keep from sinking into poorly lit waters? E) How do diatoms with their glasslike valves avoid being shattered by the action of waves?
A black A/A B? B C? C is crossed with a colourless a/a b/b c/c to give a black F1. The F1 is selfed. What proportion of the F2 individuals is colourless.
Suppose that the long ear lobes in humans is an autosomal dominant trait that exhibits 30 percent penetrance. A person who is heterozygous for long ear lobes mates with a person who is homozygous for normal ear lobes.
Provided the rising rates of hypercholesterolemia and hypertension in the United States and other industrialized nations, you are interested in studying the importance of cholesterol transport in the sodium.
What is the distinction between autopolyploids and allopolyploids and how do genetic ratios in testcrosses and F2 progenies differ for autotetraploids and allotetraploids?
1) What is the general purpose of photosynthesis? 2) describe the anatomy of a chloroplast and where they are found. 3)What are the sources of carbon, oxygen, and hydrogen in the photosynthetic reaction?
Activation of T cells requires that antigens be presented from antigen-presenting cells, not simply by exposure to the antigen in solution. What biological rationale may underlie this requirement - consider both from the perspective of how this can a..
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.
Having studied the usefulness of restriction enzymes and the process of molecular cloning, propose a use for these two genetic technologies.
Describe how structural modification helped the plant adapt to its environment. Assure the plant you select is an Angiosperm. For example, plants like the mosses, pine trees, and ferns are not the Angiosperms.
Describe the three kind of the recombination among microorganisms. DNA is transferred horizontally among same generation. The phenotype of gene at end of recombination will be changed.
The endomembrane system is composed of organelles that are directly connected or communicate using vesicles. What is the correct order for a newly synthesized protein that will be secreted out of the cell?
Create and describe a data set including independent and dependent variables (be creative) and a table of the data. Explain how this would best be graphed to accurately present the results of the research (type of graph, axes, and scale limits - m..
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