During replication, the two nucleotide chains *blank* and each chain serves as a *blank* for a new nucleotide chain. The sites where DNA replication and separation occur are called *blank*

significant amounts of nitrogen oxides, carbon monoxide, and other pollution

explanation:

passenger vehicles are a major pollution contributor, producing significant amounts of nitrogen oxides, carbon monoxide, and other pollution. in 2013, transportation contributed more than half of the carbon monoxide and nitrogen oxides, and almost a quarter of the hydrocarbons emitted into our air.

the right side of the picture going down is:

polymerase

protein

transport vesicle

modified protein

the left side of the picture going down is:

dna helix

single-stranded rna

endoplasmic reticulum

ribosome

golgi apparatus

protein released from vesicle

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this is more of a statement than a question. is there answers to go along with this, or is it opinion based?

her next move would be to use agarose gel electrophoresis to separate the dna molecules of varying length and create a dna fingerprint.