Our understanding of dna and gene expression has dramatically increased over the last 50 years. describe 2 positive impacts and 2 negative impacts that the feild of biotechnology and genetic engineering has had in agricultur, medicine, and human health?

i think that the best answer would be c.

tell me if im wrong : )

idk

explanation:

igneous rocks which formed by the crystallization of magma at the surface of the earth called extrusive rocks. they are characterized by fine-grained textures because the rapid cooling at or near the surface did not provide enough time for large crystals to grow.