Answer:
Main Differences Between Glycogen and Starch Glycogen is made up of the single-molecule whereas starch is made up of two molecules namely amylose and amylopectin. Glycogen forms the branched-chain structure whereas Starch forms linear, coiled, and branch structure.
Answer:
D
Explanation:
many chemical changes can be smelled, or heard, etc. And can be seen on a molecular level. Chemical changes create new substances:
Na + Cl = NaCl
Answer: Option B) Amplifies specific DNA sequences.
Explanation:
Polymerase chain reaction (PCR) refers to the selective and repetitive duplication of a specific DNA sequence. It involves the following: heat, an enzyme called thermos aquaticus and annealing.
In my opinion, it is harmful. As said in the text “The sickle cell mutation causes hemoglobin to become less soluble and stick together when blood oxygen levels are low. In turn, red blood cells with clumped hemoglobin become sickle-shaped, which can lead to pain, swelling of the hands and feet, frequent infections, and eye problems.” So basically, (in my own words) when blood oxygen levels are low, the sickle cell mutation makes hemoglobin less soluble, causing it to cling together. As a result, sickle-shaped red blood cells form, causing discomfort, swelling in the hands and feet, frequent infections, and vision issues.