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Q1. In recent year's phytoplankton have been investigated as a potential source of energy for humans. Researchers have therefore been interested in whether this organism can be 'farmed' to provide food or fuel. In terms of biomass, Gross Primary production (GPP) in phytoplankton living in the layer just below the surface of a typical ocean area is 4102 g m-2 yr-1. If you assume the energy value of phytoplankton is 6 kJ g-1, compute the GPP in terms of kJ m-2 yr-1. Show the working clearly.
Q2. Genetic diversity is necessary for natural selection to act, but natural selection can decrease or eliminate diversity. What procedure can restore genetic diversity to a population?
Barbara McClintock, famous for discovering that genes might move within genomes, had her meticulous work ignored for nearly 4 decades, but eventually won the Nobel Prize. Why was her work so distrusted.
After verifying that the protein complex was incorporated into liposomes, you put in NADH and incubate at 37°C. You are dismayed to view no color change in the pH indicator dye.
How many different combinations of phenotypes could exist of these 7 paired traits . What proportion would be heterozygous in every trait after 2 years.
On the other hand, vascular plants became dominant during the invasion of what type of habitat? What structures allowed them to infiltrate this new environment.
Clarify the difference in their efforts to collect oxygen. Polychaetes have lateral, fleshy parapodia beset with numerous setae, and well developed head appendages such as jaws, tentacles and eyes. What function(s) do you think about parapodia serve.
What will be the sex ratio in the offspring of a cross between a male that is heterozygous for lethal allele and a normal female.The classes of RNA molecules is linked with proteins.
How is MPF involved in one or more of checkpoints. A chemist wishes to create an organic molecule non-acidic.
What advantage will heterozygotes have over the homozygotes. Why selection inevitably favors any gene that is good at getting into the next generation, regardless of whether that gene helps or hurts the ecosystem, the species, the group, or even the ..
North American supply of salmon has not increased. Freeing up these rivers to allow more wild salmon to propagate will increase U.S. exports which are very good for our economy.
Sickle cell anemia is a disease of red blood cells in which the genetic mutation in DNA leads to a mutation in hemoglobin. A single base vary alters the DNA sequence CTC to CAC which codes for the wrong amino acid. What amino acid is coded for throug..
So far while surgery was performed on his neck, the surgeon might not find the parathyroid glands at all. Where should the surgeon look next to find out the tumorous parathyroid gland.
What organism is most probable the cause of the symptoms. What is cause the man's disease? How is this disease transmitted? How may it be prevented.
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