Explain how humans are able to produce one type of hemoglobin as they develop in utero, then produce another to use after birth

Which statement about dna replication is true? a. eukaryotes only have one circular chromosome that unwinds at multiple locations. b. eukaryotes can only replicate one segment of a chromosome at a time. c. prokaryotes can only replicate their single circular chromosome in the nucleus. d. prokaryotes only have one origin of replication to initiate replication.

When a doggo starts to pace around in the same line for a hand full of days. what would that mean?

What substance is the most acidic. lemon juice. tomato juice. sodium hydroxide. water