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1. Define the difference between these pairs of terms; 1) gene and allele 2) homozygote and heterozygote 3) genotype and phenotype. 2.Color-blindness is a sex-linked, recessive trait. Two people with normal vision have two sons, one color-blind and one with normal vision. How is this possible? If the couple also has daughters, what proportion of them are expected to have normal vision? Explain your answer. 3.Using the Data Analysis Exercise at the top of page 217 in the textbook, answer the following questions:
1) Regarding the Ty2 strain of S. typhi, about how many more bacteria were able to enter normal cells (those expressing unmutated CFTR) than cells expressing the gene with the ÄF508 deletion?
2) Which strain of bacteria entered normal epithelial cells most easily?
3) The ΔF508 deletion inhibited the entry of all three S. typhi strains into epithelial cells. Can you tell which strain was most inhibited?
Describe the oxidative and non-oxidative phases of the pentose phosphate pathway and distinguish between these branches in terms of their roles in producing NADPH for biosynthesis reactions or 5-carbon sugar for nucleic acid synthesis. Identify th..
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..
some opponents of endangered species efforts have argued that endangered species recovery is too expensive stands in
Nitrogen fixation represents a process by which atmospheric nitrogen is oxidized to make 2 ammonium ions.
List two types of macromolecules that have been partially digested by the time acid chime moves into the intestine. Where did the digestion take place, and what enzymes were involved.
Serial dilutions are not only for bacteria. They can be used for any reagent. Suppose that in an experiment it is necessary to add 0.01 micro grams of DNA to a tube. Suppose that the concentration of DNA you have is 1 mg/ml.
When a yellow female Labrador retriever was mated with a brown male, half of puppies were brown and half were yellow. The same female, when mated to a brown male produced all brown puppies.
Spatially explicit model shows no evidence of admixture between Eurasians and Neanderthals
case studycigarette smoking remains the leading preventable cause of death in the united states causing an estimated
Use knowledge of biological principles to ask relevant questions about the natural world make observations and discriminate in scientific and pseudoscientific explanations
Explain why DNA is the most favorable molecule for genetic material and how RNA compares to it in this respect.
q. the trait for medium-size leaves in iris is determined by the genetic condition pp. plants with large leaves are pp.
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