Through the actions of alleles
Answer:
25%
Explanation:
The child only comes out as homozygous dominant (YY) for the trait in 1/4 boxes in the Punnett Square. This translates to the child having a 25% chance of being homozygous dominant for the trait.
Nuclear reaction fission powers the both of them
<span>Meristem cells divide and some of the new cells differentiate into xylem and phloem. </span>