I also believe the answer is A.
Answer:
A nucleus, mitochondria, endoplasmic reticulum, golgi apparatus, and lysosomes.
Explanation:
The<u> repressor </u>is a type of regulator protein that binds to a region of DNA in the promoter of a gene called the operator and prevents transcription from taking place.
In the field of science, a regulator protein can be described as a kind of protein that affects the transcription of a gene by having an influence on particular DNA sites. The rate of synthesis of various proteins is controlled by the regulator proteins.
A repressor is a kind of regulator protein that prevents the transcription of a particular gene. When the rate of a protein in the body has reached normal, the transcription of the protein needs to be stopped in order for more protein of that kind to be formed. The repressor binds itself to the operator region for the gene, hence stopping the transcription process until the protein is required again.
To learn more about repressor, click here:
brainly.com/question/13799037
#SPJ4
The generally widely accepted first step of the scientific method is to ask a question.
This is where you think of a question which you want to do an experiment on, and then later on conduct an experiment to answer that question.
C. Mass
Mass is the amount of matter in an object.
Happy to help. Please mark as brainliest!
