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Cystic fibrosis is a chronic lung and digestive disease caused by a mutation in the CFTR gene on chromosome 7. In the United States approximately 39 in 10,000 individuals are affected with the recessive condition cystic fibrosis, 323 in 10,000 individuals are unaffected carriers, and 9,638 out of 10,000 individuals are unaffected non-carriers. Although there are over 1,000 known mutations in the CFTR gene that can lead to cystic fibrosis, we can determine the overall frequency of recessive alleles in the U.S. population. Calculate the observed frequency of CFTR alleles:CFTR dominant (unaffected) alleles =CFTR recessive (cystic fibrosis) alleles =The expected frequency of CFTR genotypes:Homozygous dominant (unaffected) =Heterozygous (unaffected carriers) =Homozygous recessive (affected) =
It is commonly reported that up to 50 percent of a cell’s energy budget is spent on protein synthesis. How do you suppose such a measurement might be made?
When Mexican hairless dogs are crosses with normally haired dogs, about half the pups are hairless and half have hair. When, however, two Mexican hairless dogs are mated, about a third of the pups produced have hair, about two thirds are hairless, an..
What is the fiber tract that provides for communication between different parts of the CNS called? And what is the one that carries impulses between periphery and CSN called.
Determine the probability that two grandchildren of the woman who are first cousins to one another will each inherit the dominant allele?
Haemophilus influenza requires hemin to synthesize cytochromes and NAD from other cells. For what does it use these two growth factors? What disease(s) does H. influenza cause?
Under constant erosion and weathering, the pyrites leech large amounts of sulfuric acid (H2SO4). The spoil banks are also mixed with large quantities of basic limestone and clay carbonates. What have to occur over time.
A series of genetic crosses are planned to estimate whether genes for two characters are linked or unlinked. It is known from previous work that both characters exhibit a complete dominance inheritance pattern.
What is the difference between theory and hypothesis and explain the importance for a hypothesis to be testable and falsifiable in order for the scientific method to be applied
Develop a labeled diagram of a small section of the plasma membrane and briefly describe its structure and function.
The dominant bonds holding together non-polar compounds that are immersed in aqueous solution are, and the forces that hold pure solutions of non-polar compounds are
After leaving the end of a ski ramp, a ski jumper lands downhill at a point that is displaced 66.2 m horizontally from the end of the ramp.
Discuss when we compare amino acid differences to determine the evolutionary "distance" between organisms, what assumptions are being made about the rate at which mutations occur over time?
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