Answer:
Explanation:
Hydrogen bonding is usually occur wen interaction with hydrogen atoms occur.
Hydrogen bonds joins DNA polymers because an hydrogen atom occur on on one base which is called hydrogen bond donors and another oxygen or nitrogen atoms on the base across from it which is called hydrogen bond acceptors.
Adenine “A” a purine and Thymine “T” a pyrimidine each have a donor and one acceptor, whereas Cytosine “C” a pyrimidine has one donor and two acceptors, and Guanine “G” a purine has one acceptor and two donors.
This atoms allows for hydrogen bond between them that gives them structure of DNA molecule.
A nucleotides is hydrogen bonded to T nucleotides while C nucleotides is hydrogen bonded to G nucleotide this is called complementary base pairing.
Answer:
this question has a horrible explination
Explanation:
the answers dont even match up with the question
“Snakes have tiny hind legs bones, indicating that they likely descended from lizards.” Is the best choice. Vestigial structures are body parts that have no use for the organism as it has evolved and did not need it.
Answer:
Subunit Vaccines. Instead of the entire pathogen, subunit vaccines include only the components, or antigens, that best stimulate the immune system.
Explanation:
I think it’s B
Sorry if it’s wrong