Answer:
approximately 4.5 billion years ago
Explanation:
Answer: Low, High, Lac repressor
Explanation:
The expression of the lac structural genes is low when lactose is absent from the culture medium and is high when lactose is added, because lactose binds to the lac repressor and inactivates it.
When Lactose is present the lac genes is expressed because the substrate lactose act as inducer and binds to the lac repressor and inactivate it. So the gene is expressed.
But in the absence of lactose, the lac repressor binds the DNA and prevent the expression of the lac genes
Given what we know, we can confirm that during the elongation stage of translation, what is elongated is in fact the amino acid chain that is being formed.
<h3>What is an amino acid chain?</h3>
To summarize it very briefly, translation is a process in which cells produce proteins. The proteins in question are produced from chains of amino acids. As more amino acids are added to this chain in order to form the protein, it becomes elongated.
Therefore, we can confirm that during the elongation stage of translation, what is elongated is in fact the amino acid chain that is being formed.
To learn more about amino acids visit:
brainly.com/question/15823799?referrer=searchResults
The statement that is true of Oparin and Haldane's theory is : the primitive organic molecules were formed in an oxidizing atmosphere in the primordial soup
This is one of the theory that determined how life on earth developed. It was one of the most influental theory on the matter
hope this helps
All seeds need water, oxygen, and proper temperature in order to germinate. Some seeds require proper light also. Some germinate better in full light while others require darkness to germinate.
Hope this helps! <3
