Which of the following best describes the structure of a typical molecule of DNA? A. helical
B. double-stranded
c. double-stranded helix
D. complementary

According to your text, should be in the native language of the parents or guardians whenever possible. a. an email b. consent forms c. oral approval d. storybooks loaned out

How many chromosomes does each human cell contain? a. 23 chromosomes b. 26 chromosomes c. 43 chromosomes d. 46 chromosomes

Hemoglobin is a proton that carries oxygen around the body what is hemoglobin made from