Help plz Vestigial structures, such as the appendix, are body parts that don't seem to serve a
purpose in humans. How are vestigial structures important evidence for evolution?

A. They provide clues about structures that were important to our ancestors.
B. They provide clues about what future generations of humans will look like.
C. They help identify body parts in fossils.
D. They are evidence that humans used to eat different foods.

A

Explanation:

step 1: initiation

initiation is the beginning of transcription. it occurs when the enzyme rna polymerase binds to a region of a gene called the promoter. this signals the dna to unwind so the enzyme can ‘‘read’’ the bases in one of the dna strands. the enzyme is now ready to make a strand of mrna with a complementary sequence of bases.

step 2: elongation

elongation is the addition of nucleotides to the mrna strand. rna polymerase reads the unwound dna strand and builds the mrna molecule, using complementary base pairs. there is a brief time during this process when the newly formed rna is bound to the unwound dna. during this process, an adenine (a) in the dna binds to an uracil (u) in the rna.

step 3: termination

termination is the ending of transcription, and occurs when rna polymerase crosses a stop (termination) sequence in the gene. the mrna strand is complete, and it detaches from dna.

answer: i feel like it would be 3

explanation: