Answer AND Explanation:
Let H be for normal blood clotting gene.
XH Xh
XH XHXH XHXh
Y XHY XhY
The probability of the couple having a hemophilia sex-linked trait is 25% and 75% for normal children.
Answer:
there are 4 major classes of biological macromolecules
In the summer because it wil be warm
1) Cells duplicate their chromosomes before dividing instead of after because the daughter cells would each lose one-half of the genetic information.
The duplication of chromosomes automatically leads to the duplication of the genetic information on the chromosomes and each daughter cell receives a copy each of the genetic information.
If the information are not duplicated before dividing, it means that each daughter cell will receive half information.
2) If a cell that starts with 16 chromosomes lost half of its genes during each cell division, it will take 4 divisions for the gene to remain 1.
- First division, the genes would remain 8 from 16
- Second division, the genes would remain 4
- Third division, the genes would remain 2
- Fourth division, the gene would remain only 1.
More on cell division can be found here: brainly.com/question/24276929
