The fluid is called blood
Answer:
The answer is A.
Explanation:
Change in DNA sequence leads to genetic mutation.
The lock and key model is where the substrate has a specific shape which can fit into the specific shape of the active site of the enzyme, just like how a key has a specific shape which can fit into a specific lock.
In other words, the substrate is complementary (same shape) to a specific enzyme, so the substrate can bind/fit to the enzyme.
This is kinda a weird question for me to answer... BUT.... lol
I think it is Meiosis, which occurs over two cycles of cell division, which sperm cells complete before fertilization. It also is the process that creates gametes -- sperm and egg cells -- containing only one, or a haploid, set of chromosomes.
And fertilization is the action or process of fertilizing an egg, female animal, or plant, involving the fusion of male and female gametes to form a zygote... OR
it could be the action or process of applying a fertilizer to soil or land.
Hope this helps. c;