Chromosomes are made up of __________ ?
Correct answer: D. DNA and Proteins
- A. DNA only
- B. DNA and RNA
- C. Proteins only
- D. DNA and Proteins
Explanation
Chromosomes consist of DNA wound around structural proteins called histones. DNA carries genetic information, while the proteins help package and organize it.
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About Human Body and Health
The human body is studied through its organ systems, including digestion, respiration, circulation, excretion, nervous coordination, reproduction and immunity. Coverage also includes nutrients and deficiency diseases, hormones, blood groups, common infections, vaccines, sanitation and basic first aid, while distinguishing communicable diseases from inherited and lifestyle disorders.
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