3 hydrogen bonds are formed.
When the M phase begins during the cell cycle, it starts with prophase
<span>Cohesin holds the sister chromatids together after DNA replication, and removal of cohesin leads to separation of the sister chromatids.
Securin is part of the metaphase-anaphase transition and anaphase onset and is required to ensure that separase is folded properly.
Since Securin must be degraded for anaphase and the subsequence degradation of cohesin to occur, it must be dephosphorylated just prior to anaphase.</span>
Answer
In any society the number of children produce depend upon the following factors:
1. desire for large families
2. prevalent child mortality
3. knowledge- knowledge on to use family planning, available options, side effects and migration measures, available services and cost.
4. access to quality family planning services
The role of children in society as future providers for family is an important determinant of fertility rate. Africa is still poor under developed and primarily an agrarian/rural society. Mortality rates are also high for children and adults. As a result women tend to produce more child as they know that some of them will die during childhood or adulthood.