Hi. You have not shown the sections this question refers to, nor have you provided more information about those sections. This makes it difficult for your question to be answered. However, I will try to help you as best I can.
Generally speaking, we can consider that there was no growth of bacterial colonies in sections 2 and 3, because, for some reason, the bacteria was not inoculated in sections 2 and 3. What could also have happened, is that the bacteria in the sections 2 and 3 were eliminated, but the bacteria from section 1 managed to survive and form colonies.
Another possibility is that after inoculating the bacteria in section 1, you didn't handle the bacteria correctly in the other sections, leaving that bacteria to dry out and die.
Finally, the culture media in sections 2 and 3 could be inappropriate for bacteria to develop and form colonies.
Answer:
'Dosage' of a chromosome (or a gene) refers to its genomic ... The effect of the dosage compensation complex on the X ...
Answer:
d
Explanation:
the DNA is smaller than the chromosome by just a bit and 300 miles of DNA fit into a nucleus.
Because 40= 20x2, in order to keep the ratio consistent Megan would need 1/2 of 71 g of chlorine which is 35.5, right?
The answer is the letter B. Electrical signals.
*Our brain and body communicates with each other by sending messages in the form of electrical signals.
