Answer:
The two strands of DNA need to be separated so new bases can pair with each template strand. What is the significance of the sequence of nucleotides? It determines the type of protein being produced.
The correct answer is D. Bird flu.
Polio and smallpox are very rare today as they were eradicated hundreds of years ago and TB has been around for maybe thousands of years. Bird f!u was discovered in 1957.
Answer:Ice remains on the top of water due to its low density.
Explanation:
It minimises heat loss thus maintaining bearable temperatures in the water below