B because I’m pretty sure only whales and dolphins have blowholes
Answer: Hydrogen bonds are created between the base pairs in DNA. Adenine pairs with thymine and cytosine pairs with guanine. Adenine and thymine create 2 hydrogen bonds while cytosine and guanine create 3. These bonds are fairly weak so that they can be broken when DNA is replicated (by an enzyme called helicase which unwinds DNA). However despite them being weak they do stabilize DNA's double helix structure as well.
wales have way more cells than we do, to be exactly precise they Carrie over 10,861,313,870,000,000 so yea... I hope that this helps ya!!
Answer:
A site at the 5′ end of a gene where RNA polymerase attaches to initiate transcription and control of gene expression occurs is called a/an
Explanation: