Answer:
Your answer is B) Batoidea. Batoidea is a superorder of cartilaginous fishes commonly known as rays.
I would love to help you!!! But you didn't put the statements on the questiom:(
I will answer your question once you have placed the statmnets on the question:)
--The J Train
Answer:
A promoter refers to a DNA sequence, that is, situated upstream of a gene and signals the start of transcription.
A repressor refers to a transcription factor that prevents transcription by combining with the operator site.
An insulator refers to an element that obstructs the signals between the promoters and enhancer.
A regulatory gene refers to a gene, which monitors the expression of one or more genes by preventing or encouraging transcription.
An inducer refers to a molecule that stimulates the synthesis of mRNA by disabling the protein, which inhibits the transcription.
An operator refers to a short sequence of DNA situated close to the promoter region, and is recognized by a repressor protein.
You are symmetrical. Below is the definition of it and it sounds right.
made up of exactly similar parts facing each other or around an axis; showing symmetry.
synonyms: evenly shaped, aligned, equal;
I hope that helps and is the correct answer.