https://quizlet.com/492462564/chapter-14-human-genetics-karyotype-activity-flash-cards/
Answer:
A. Nerve signals from the brain are controlling the arm.
Explanation:
Bec ause it starts at the brain and to the arm/hand!.
B.) Inversion.
I'm not quite sure, so might wanna double check, but I think that's correct. Hope I helped, if not I apologize.
Answer:
C. Nucleic Acids arranged in a double helix.
Explanation:
The structure of DNA is best described as a double helix. DNA has a sugar phosphate back and nucleotides connected by covalent bonds. Together, it looks like a twisted ladder which is also known the double helix.