Traits that are passed down on an X or a Y chromosome are sex-linked traits. Most of the time males are affected by sex-linked traits because males only have one X and a Y. The Y is the chromosome that makes a man, a man.
Answer:
Nucleotide, Gene, DNA, Chromosome, Cell.
Explanation:
The volcaanic can be caused by pressure plated in the system
The chance that a human child will be born male is 50%
