Which statement is true of both mitosis and meiosis?

a) both occur only in reproductive cells

b) dna replication occurs before the division of the nucleus

c) both are involved in asexual reproduction

d) the number of chromosomes is reduced by half

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❖ The correct answer is B. DNA replication occurs before the division of the nucleus. DNA replication occurs during interphase and interphase is before mitosis and meiosis.

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true is the

before, trains worked using the steam engine. thus, it uses heat so it is crucial to apply heat balance. the steam engine absorbs energy during the stage of boiling water. so, this is the endothermic reaction. when the steam is used to work the piston, it has to release this energy through running the train. the excess energy is released as an exhaust to the chimney. this is the exothermic process because it releases energy to the surroundings.