Biology, 26.11.2019 02:31 aschool2000
Arare autosomal recessive disorder causes pink hair. a non-carrier male and an affected female marry. consider the following pedigree and rflp analysis prepared using hindiii, southern blot, and a probe with a human sequence known to hybridize to sequences closely linked to the gene responsible for this disorder. a. diagram each of the different haplotypes (group of markers that tend to be transmitted together because of linkage) of i-1 and i-2 showing the restriction map and fragment lengths. show all hindiii restriction sites on each map. b. on the restriction map, indicate the area to which the radioactive probe must hybridize in order to detect the fragments seen by southern analysis. c. to which haplotypes (essentially pattern of each chromosome) does the mutant allele of the gene seem to be linked in this family. d. why does individual iii-1 only show one band in the rflp analysis? e. which individuals are probably carriers?
Answers: 1
Biology, 22.06.2019 03:50
What did not occur in the proterozoic eon a)the oxygen levels increase greatly in the atmosphere,b)the emergence of the eukarya , c)muti cella’s eukaryotic organisms began to diversify,d)anaerobic bacteria kept thriving with more oxygen
Answers: 1
Biology, 22.06.2019 11:30
Ihave no idea how to solve these. plus there's another question that is 2) a 10 kilogram meteorite is collected in space and brought back to earth. it is composed of 1.25 kg of uranium-238 and 8.75 kg of lead-206. how many u-238 half lives have passed? what is the approximate age of the meteorite?
Answers: 1
Biology, 22.06.2019 13:20
Choose the incorrect statement (a) the motor end plate membrane is only capable of generating graded potentials, but it is contiguous with the skeletal muscle sarcolemma, which can generate action potentials. (b) propagation of an action potential through the t-tubules into the sarcoplasmic reticulum triggers the release of ca++ into the cytoplasm of a skeletal muscle fiber. (c) the generation of suprathreshold endplate potentials in multiple muscle fibers could be due to the increased frequency of action potential generation at the axon hillock of a single motor neuron. (d) a greater amount of ach would be found in the presynaptic vesicles of a motor unit that fired several action potentials after exposure to botulinum toxin, than in a motor unit that fired several action potentials after exposure to the venom of the krait snake (which contains α-bungarotoxin).
Answers: 2
Arare autosomal recessive disorder causes pink hair. a non-carrier male and an affected female marry...
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