Answer:
He chose peas because they had been used for similar studies, are easy to grow and can be sown each year.
Explanation:
I just saw the answer on the website :)
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This is strong evidence for the hypothesis that the chroloplast originated ais a symbiotic cyanobacteriam that became permanentely incorporated into its host.the complete genome sequence of cyanobacteria and of the higher plant arabidopsis thaliana leave no doubt tha chroloplast originated through endosymbiosis from a cyanobacteriam
The answer is 46 dna molecules in a human cell