Answer:
See details below
Explanation:
STEP 1:
We know already that the capacity to absorb oxygen of the body is not limited by the amount of oxygen available, but by the ability of hemoglobin to bind and transport O2 so Itamin O is useless. There is no an efficient way of extracting oxygen when we talk to GI tract but we know that is transport to our lungs without problems.
STEP 2:
It is required a dedicated O2 binding protein (hemoglobin) indicates that dissolved oxygen by itslef cannot attain the high concentration required. The use of some Vitamin O would make a difference in the amount of oxygen already present in the blood
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This happens during metaphase. I remember this phase because it is the move phase
of mitosis. The m from move matches the m from metaphase.
In mitosis, it happens during metaphase.
In meiosis, it happens twice and occurs in metaphase 1 and metaphase 2
The right answer is the promoter.
• The promoter is a nucleotide sequence that allows the transcription of the gene into mRNA. It is recognized by the RNA polymerase that initiates transcription. During the synthesis of the RNA, the promoter indicates which gene must be expressed and therefore which proteins the cell must produce. In an operon it is common to all genes.
• The operator is a segment of DNA and / or messenger RNA to which a chemical signal (a regulatory molecule) binds. It can be either a repressor signal or a transcription activating signal (DNA operator) or translation (RNA operator) of the genes of the operon. The RNA polymerase does not recognize this structure.
To contract and churn the food to break it down into smaller molecules
