Look at the karyotype. Which chromosome has an extra copy?

A. 2

B. 20

C. 18

How is an environment able to support different varieties of organisms?

Jane is blood type a her husband is blood type b. jane is puzzled because their daughter is type o. explain how the daughter inherited a blood type that neither of her parents had explain your answer

Approximately what portion of the foods that we eat have been genetically modified in some way? a.fewer than 10% b.about 50% c.nearly 100%