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Pertussis toxin is produced by Bordetella pertussis, the bacterium that causes whooping cough. Pertussis toxin catalyzes the addition of ADP-ribose (structure below) to Gα, whichprevents Gα from binding to GPCRs thus "locking" it in the GDP-bound state. How would this affect liver cellresponses to epinephrine?
1. a baby is born with a hole between the right and left atrium. thinking of the anatomy of the heart what symptoms
Draw a typical plant with roots stems and leaves. Next, mark on that plant typical water potentials during mid-day as measured in the soil, root, stem, and leaf at the top of the tree as well as the water potential of the atmosphere. Draw the same..
Assume if you were working with an organism like Arabidopsis, Drosophila, or any diploid organism that requires to use sexual reproduction to produce offspring.
Cells have internal signals that stop or start cell division, but there are also three main types of external signals. State all three with a brief explanation of what they are
What is meant by the term double crossover as it relates to recombinant progeny. Explain your answer by giving the genotype of parental chromosomes and those chromosomes showing a double crossover event.
the adh gene also has two primary alleles. one allele a codes for a form of the adh enzyme that catalyzes the
Choose if the mutation is dominant or recessive. A heterozygous F(1) hermaphrodite offspring from the successful mating between a sma-2 homozygous hermaphrodite and a wild-type (+) homozygous male (cross in Question 3) is placed on a new plate. Prov..
You are the science reporter for your local newspaper. Your editor asks you to write an article on a major topic within the general field of microbiology.
In a cell biology laboratory experiment, two students independentlyisolated the enzyme lactate dehydrogenase, which catalyzes thereduction of pyruvate to lactate, from chicken heart.
Compare changes in carbon cycle to that of the nitrogen cycle on human health. Create a conceptual graphical model for how changing the carbon cycle is likely to impact human health.
In your own words explain the concept of rRNA then suggest three reasons why scientists choose to use rRNA as an Evolutionary Chronometer.
in guinea pigs yellow coat color is produced by homozygous genotype YY, cream color by heterozygous genotype YW and white by homozygous WW.
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