Does anyone know what flower this is (it really beautiful)

Its a gelsemium sempervirens or a yellow jessamine.

answer by yourhope:

answer is

human impact on the environment can be seen in the deterioration of the !

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c) 50% there are four chromosomes. after crossing over, 2 of the four have been changed. that means any gamete has a 2 in 4 chance or 50% chance of receiving the mutated chromosome.