Fertilization Flashcards
1
Q
What does the zygote undergo?
A
Rapid mitotic division
2
Q
Do cells grow when undergoing rapid mitotic division?
A
No but the zygote is so big it doesn’t have a negative effect on the cells
3
Q
What connects the dividing zygote cells together?
A
CAM molecules
4
Q
What are CAM molecules?
A
Protein bonds
5
Q
What can occur if the CAM bond between two cells break?
A
The two cells divide and develop separately and identical twins form
6
Q
How do fraternal twins occur?
A
Two fertilized eggs are developing in the womb together
7
Q
What does the male gamete (sperm) + the female gamete (egg) create?
A
A diploid zygote
8
Q
What does morphogenesis mean?
A
The creation of form
Ex. While gestation in the womb
9
Q
What are the 4 mechanisms of morphogenesis?
A
Cell differentiation (different shaped cells will create different shaped tissue) Cellular adhesion Differential growth (cells grow at different rates) Cell death (ex. Cells between fingers die)
