Answer:
A. Scientists discovered chromosomes and DNA.
Explanation:
Mendel's ideas were based on patterns of inheritance in plants. Although he identified these patterns, at the time, we did not know what the hereditary material was. This means Mendel couldn't uncover the mechanism of why he was seeing the patterns he was.
When scientists discovered chromosomes and DNA, they were able to see how Mendel's observations made sense in the context of DNA and chromosomes.
Speed. Reaction. Function. Alter.
When someone is HIV positive it is their immune system is deficient this can lead to AIDS or other serious infections
Answer:
50%
Explanation:
its a chance but not likely
because its not dominant