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The allele that causes achondroplasia is a dominant mutation: 10 out of 102,246 births. Since this is a dominant mutation what is the frequency of the gene in newborns? The relative number of progeny from 110 acrondroplastic parents is 35, while 531 of their unaffected siblings had 740 progeny. Homozygous individuals for the acondroplastic allele die early in life. Given that the population is in mutation-selection balance, what mutation rate would lead to this frequency of the acrondroplastic allele?
Consider a pre-mRNA that is 12,700 nucleotides long and contains seven 100 base exons separated by 2000 base introns. It seems like an overwhelming task for the splicing machinery to find the exons buried in the intron sequences and to splice them..
For which of the hydrogen atoms in these two structures will it be possible to infer the hydrogen positions, so that it is unnecessary to measure them?
In the common mouse species, Mus musculus, the mutant yellow fur gene is dominant to the allele for normal fur color. When homozygous.
One class of aminoacyl tRNA synthetases possesses "proofreading" abilities. An experiment was carried out where a cysteine attached to tRNA was chemically modified to an alanine.
Four proteins, each containing a single polypeptide, are separated by SDS-PAGE: human cytochrome c (MW 13,000), human serum albumin (MW 67,000), bovine myoglobin (MW 16,890), and human apolipoprotein B (MW 513,000). Which one would show up as the ..
biotechnology is the use of a living thing or any part of a living thing to make a product or process that improves
Two of the seven different pea traits examined by Mendel involved genes that we now know are linked. Knowing this, can you explain why Mendel was still able to use results from his crossing experiments to develop the principle of independent assor..
A girl notices that her guppies reproduces most when herfish tank water is slighty alkaline. they stop reproducing if thewater becomes acidic or if the water becomes too alkaline. when ling increased the amount of food, the carrying capacity of the..
which secondary structure is more energetically stable, anα-helix or a β-strand? which β-pleated sheet structure is more energeticallystable, parallel or anti-parallel? Describe what contributes to the stablility of eachstructure.
Animals can be classified according to their mode of thermoregulation. Sort the animals below, indicating their likely thermoregulatory strategy. Note that poikilotherms are sometimes referred to as heterotherms.
The Km of an enzyme: Vmax:
answer the following questions using complete sentences in short answer format.each short question answer should be
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