Biology

Biology, 08.07.2019 03:00, yaitzafigueroa

Rh negative individuals can produce against blood.

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Biology, 14.07.2019 20:00, 2024cynthiatercero

According to data from the state blood program, 40 percent of all individuals have group a blood. if six individuals give blood, find the mean number of individuals having group a blood.

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Biology, 29.07.2019 10:30, braegan64

The rh factor is a protein found on the surface of red blood cells. the rh factor must be matched during blood transfusions. rh+ individuals may receive blood from rh+ and rh- donors while rh- individuals can only receive rh- blood. rh+ individuals possess at least one dominant allele (r) for the trait while rh- individuals are homozygous recessive. two rh+ parents have children. what is the probability that any offspring will not be able to receive a transfusion from either parent?

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Biology, 13.09.2019 06:30, ggbvalde

Expression of the a and b antigens on red blood cells is influenced by the fut1 gene. this gene encodes fucosyl transferase, an enzyme that produce the h substance. which of the following statements about the h substance is incorrect? (a) individuals that cannot produce the h substance appear to be type o even if they have functional a and/or ib alleles. (b) individuals that fail to produce the h substance are said to have the bombay phenotype. (c) individuals that are heterozygous for the fut1 gene cannot produce the h substance (d) the h substance is a substrate for the enzymes produced by the n and β genes. these enzymes add the appropriate terminal sugar to the h substance producing the a and b antigens, respectively.

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Mathematics, 19.10.2019 01:10, lily2998

The blood type o negative is called the "universal donor" type because it is the only blood type that may safely be transfused into any person. therefore, when someone needs a transfusion in an emergency and their blood type cannot be determined, they are given type o negative blood. for this reason, donors with this blood type are crucial to blood banks. unfortunately, this blood type is fairly rare; according to the red cross, only 7 percentage of u.s. residents have type o negative blood. assume that a blood bank has recruited 20 unrelated donors. (state calculator entry and give 4 decimal places) what is the probability that fewer than three of them will have type o negative blood? what is the probability that more than 4 of them have type o negative blood? find the probability that none of the donors had type o negative blood. would this be unusual? explain. what is the mean of the number of donors who have type o negative blood for a group this size? what is the standard deviation of the number of donors who have type o negative blood for a group this size?

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