Options are not provided in the question. Thus, all possible answers are included in the answer.
Transcription bubble is formed during the process of transcription of DNA where a small portion which is to be transcribed is unwound. After this, RNA polymerase binds to the single stranded DNA and RNA strand is synthesized.
It is a molecular structure which is formed only during transcription.
Answer:
2.7 billion
Explanation:
This period is referred to as the Great Oxygenation Event. This period saw the evolution of photosynthetic organisms (cyanobacteria) that utilized carbon dioxide (that dominated the atmosphere then) and sunlight to manufacture their energy molecules-glucose. Photosynthesis produces oxygen as a byproduct that is evolved into the atmosphere. As these photosynthetic organisms proliferated on earth, the atmosphere composition changed to become partly dominated by oxygen (which is an oxidaton agent) with less and less carbon dioxide.
<h2>Answer is "long chain fatty acids"</h2>
Explanation:
- A fatty acid is one of the major components of a triglyceride, which is a form of lipid that is used in the body to store energy. A lipid is just a type of molecule that includes, among other things, fatty acids. Triglycerides are a secondary energy source that the body can use in the event that there is not enough sugar (our primary energy source) in the system. While fatty acids vary in terms of chemical characteristics, they all have some basic qualities in common.
- Hence the right answer for the fill up the blank is "long chain fatty acids"
