Ithink this is a but if it’s not can someone let me know!

Gregor mendel is best known for his work with pea plants and for uncover many of the mysteries of genetics. one of his major findings stated that there were specific, physical units of inheritance that are transmitted during reproduction. what is the the name given to these units of inheritance which can be found on chromosomes? a) centromeres b) cytoplasm c) genes d) nucleotides

What is used as a template during replication? a- mrna b- trna c- rrna d- dna

What could happen if two base pairs on a strand of dna or switched