If it is assumed that chromosomes carry the genetic information, the following question is raised: What molecule in the chromosomes carries the genetic information? [ ]

What two alternative hypotheses are suggested by the clues?
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Which of these alternative hypotheses seems most likely to be able to be supported? Why? [ ]

genetic variation can be caused by mutation (which can create entirely new alleles in a population), random mating, random fertilization, and recombination between homologous chromosomes during meiosis (which reshuffles alleles within an organism's offspring).

you should wear a lead protective shield when having teeth x-rays

hope i

-lavira : )

these muscles maintain the blood pressure in the vessels. the smooth muscles are innervated by nerves of the autonomic nervous system. when the muscles contract, they cause vasoconstriction of the vessels and increase blood pressure. when the muscles relax, they enable vasodilation of the   blood vessels hence reduce blood pressure.