Answer:
The correct option is b (complementary).
The mutation is a change in just one nucleotide in the gene for hemogloblin.
Your answer is c for #3, hope i helped!
Answer:
It is the center of the solar system.
It is made up mostly of gases, not solids.
It is the most massive object in the solar system.
Explanation: The sun is only about 4 billion years old so the 3rd one is incorrect, and the last one is incorrect because the Sun is made up of mostly hydrogen
