Answer
Optimal temperature for catalase activity is around 30'C because the highest amount of oxygen bubbles were observed at this temperature. Catalase activity decreases after optimal temperature. This happens because the enzyme becomes denatured.
Answer:
The above statement is false.
Explanation:
The above statement will be considered false because the water from other ecosystems might contain dissolved salts also.
For examples, other ecosystems like an estuary, coral reefs, mangroves also contain dissolved salts.
Answer:
This composition of nucleotide given in the question do not obey the chargaff"s rule.
Explanation:
According to chargaff"s rule the total number of purine bases will be same to the total number of pyrimidine bases that is
Adenine+Guanine=Thymine+Cytosine
But here the above quation is not maintained because according to the question A+G=49%
and T+C = 51%.
Such DNA is replicated by rolling circle model.