The complementary strands of DNA to form a -shaped replication fork New pairs are formed according to base pairing rules Each double-stranded DNA is made of one strand and one strand of DNA

The complementary strands of DNA Unwind to form a _Y___-shaped replication fork New __Neucleotide base pairs are formed according to base pairing rules Each double-stranded DNA is made of one _old strand and one ___new strand of DNA

Explanation:

Central dogma is the process by which proteins are synthesized from genetic information. It comprises of replication, transcription and translation. In replication the new copy of DNA is synthesized.

d. changes in climate and historical records

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the correct answer is anaphylaxis.

anaphylaxis is a condition caused by insect bites, foods, medications, manifested by tongue swelling, shortness of breath, vomiting, low blood pressure. it sometimes may occur without an obvious reason. it is treated with epinephrine injection.other tretments include antihistamines and steroids,