The mitotic spindle is anchored to the ___ which is specific to centrosomes in an animal's cells?

What is the mrna strand that would be copied from this dna strand

The normal shape of an enzyme is as shown in structure a. if the enzyme’s shape changes to that shown in structure b, what are two consequences of this change?

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