Amouse from a true-breeding population with normal gait was crossed to a mouse displaying an odd gait called "dancing." the f1 animals all showed normal gait. a. if dancing is caused by homozygosity for the recessive allele of a single gene, what proportion of the f2 mice should be dancers? b. if mice must be homozygous for recessive alleles of both of two different genes to have the dancing phenotype, what proportion of the f2 should be dancers if the two genes are unlinked? c. when the f2 mice were obtained, 42 normal and 8 dancers were seen. use the chi-square test to determine if these results better fit the one-gene model from part a or the two-gene model from part b.
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Biology, 21.06.2019 18:00
The phlogiston theory in the 17th century attempted to explain burning. the theory stated that combustable objects contained a material called phlogiston, a substance without mass, color, odor, etc. after objects burned, the objects were dephlogistonated and were then in their true form. the phlogiston theory was accepted until the 18th century, when lavoisier proved that combustion requires a gas that has mass. phlogiston is considered a) to be scientific knowledge b) not to be scientific knowledge c) to be proven by scientific method d) to be accepted in the modern scientific community
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Biology, 22.06.2019 03:00
Johnny rode his bike to a friend's house 4 blocks down the street in his neighborhood. he immediately rode back home once he realized his friend was not able to play. what was his displacement for the total bike ride? how did you determine this? what could we use as a reference point to determine he was in motion during his bike ride? why can you use it as a reference point
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Biology, 22.06.2019 06:00
Which kingdom includes some organisms that have no nucleus and can live in an environment with an extremely high salt content
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Amouse from a true-breeding population with normal gait was crossed to a mouse displaying an odd gai...
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