Bromothymol blue is an indicator dye that turns yellow in presence of an acid. It remains blue if the pH of the given solution is greater than 7.6 and yellow when the pH is less than 6. The yellow coloration is due to the formation of carbonic acid in the from the carbon dioxide present in the solution.
When aquatic plants are added to two test tubes containing bromothymol blue, stoppered and kept in dark for two days, no color change is observed. It is because the carbon dioxide present is utilized in the process of photosynthesis by plants. If the experiment is conducted in presence if the light, the color of bromothymol blue would be yellow due to the presence of carbon dioxide.
Answer:
The father of genetics is Gregor Mendel. Gregor Mendel was considered the father of genetics during the 19th century.
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I think the nuclear membrane begins to break down, and the pair of chromosomes look like their are floating in the air.
1) Store the cells DNA
2) Control cell division and cell growth
c. food production is the answer
