Quiz 2 Flashcards
1
Q
Early (< 10 weeks) embryonic growth is relatively slow because at this time the embryo mostly undergoes cellular ………………….
A
Differentiation
2
Q
How long does pregnancy last
A
40 weeks
3
Q
Gestational age will always be older than the “true” (days, hours, minutes) of the developing foetus. True or false
A
True
4
Q
During fertilization, an ovum can only provide an [x] sex chromosome, but a sperm can provide either of a [y] or [z] sex chromosome.
A
Ovum = X Sperm = X or Y
5
Q
Place in correct order
Stem-cell differentiation
Blastocyte
Implantation to uterine wall
Morula
Fertilized egg
Ovum
Cell division
A
Fertilized egg Ovum Cell division Morula Blastocyte Stem cell differentiation Implantation to uterine wall
6
Q
3 stages of pre - natal growth in order
A
- Fertilised egg (Ovum)
- Embryo
- Fetus
7
Q
the average weight of a baby?
A
3.4kg
8
Q
When does sexual differentiation occur
A
weeks 6 - 8
