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Assume you work with petunias and you have identified a single gene that causes their flowers to either be all pigmented (solid), or streaked with white. Depending on the genotype of this gene, the flowers are thus either streaked or solid. You take a streaked plant and you cross it to a solid plant. This cross results in the following progeny: 233 with streaked flowers and 197 with solid flowers.
a) Come up with a genetic explanation for the appearance and genotype of the parents and offspring of this cross.
b) Show that your explanation passes a Chi square test.
You have a 10x enzyme buffer that you are to use in a particular reaction. The total volume of the reaction is 30 micro liters. Determine how much of the 10x buffer should you add so that the final concentration of buffer in the reaction is 1x?
The brown and scarlet mutations assort independently. If fruit flies that are heterozygous for both of these mutations are intercrossed, what sorts of progeny will they create, and in what proportions? Describe how you got the answer.
Describe the molecular events that generate the "dark current" in photoreceptor cells;define the impact of this cycle on the typical resting.
What is estimated density of firs in the forest. Why then is the gene called Dorsal, and not, for instance, Ventral.
Primary transcripts produced by RNA polymerases are generally faithful copies of the DNA template. However, most final/functional forms of these RNAs vary substantially from the primary transcript.Give an instance of an RNA class.
Two intracellular molecules A and B are continually synthesised at a constant rate of 1000 per molecule per cell. Each molecule of A survives an average of 100 seconds. While each molecule of B survives an average of 10 seconds.
A hypothetical enzyme in which the active site is complementary to the substrate will.
What is an animal? Include in your answer how animals are differentiated from other life forms. In particular, describe the similarities and differences between volvocine protozoa, members of the Phylum Porifera, and members of the Phylum Cnidaria th..
What percent of the population are homozygous dominant. What do you assume would be the effect on the switch of reversing orientation of one of the hix sites.
Who creates more ATP by substrate level phosphorylation.
What should we do to find out the consensus sequence of initial translation region around ATG for a specific species. Figure out the passive, active, and total stress components of an isometric experiment (label the axes) and provide simple diagrams..
Explain a muscle contraction beginning with the motor neuron to relaxation of the muscle. Discuss the physiological relationship of the muscular and skeletal system.
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