In dna replication which enzyme is responsible for the removal of rna from rna/dna hybrid regions and replacing it with new dna?

Select the situation bellow that would produce a total displacement of zero. a. a trip to the moon and then to mars b. a horse galloping from one end of a field to another c. the criss-crossing path of a bug as it flies from flower to flower d.a round-trip ride to school and back

What is the next step in muscle contraction after the actin changes shape? (apex)

Which best describes a gene? a. a sister chromatid b. a chromosome c. a tetrad d. a piece of a chromosome