Pedigrees Had to repost
This is a practice problem I turned in and I screenshotted what my teacher told me but I still don't understand what's wrong. Thank you
PLEASE NO ANSWERS I HAVE TO DOWNLOAD. NO FILES

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.

Which type of respiration takes place when there is no oxygen present

Is there any species that went extinct in recent years due to natural causes (not caused by human interaction). if so, what caused it?