The picture shows 4 different types of Point Mutations, what type of Point Mutation is letter A? https://encrypted-tbn0.gstatic. com/images?q=tbn:ANd9GcT0qmSOJnauvv dLO-Ad_47qjnDNYP48k-seCQ&usqp=C AU

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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poor water quality affects most estuarine organisms, including commercially important fish and shellfish. the pollutants that have the greatest impact on the health of estuaries include toxic substances like chemicals and heavy metals, nutrient pollution (or eutrophication), and pathogens such as bacteria or viruses.

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