Term
|
Definition
| fertilized egg, after nuclear fusion |
|
|
Term
|
Definition
| developing organism from 2-8 weeks |
|
|
Term
|
Definition
| developing organism from 9week - birth |
|
|
Term
|
Definition
| embryo or fetus + all surrounding membranes |
|
|
Term
|
Definition
1/3 of human gestational period: not equal in contents,
1st
2nd: when fetus cannot survive outside mother
3rd: viable period |
|
|
Term
| Growth- What are the different causes? |
|
Definition
| Growth change in size: hyper plasia, hypertrophy, increasing extracellular matrix |
|
|
Term
| What is differential growth? |
|
Definition
| one side or part of structure grows fater than another- major mechanis that allows organs to reach ultimate shape |
|
|
Term
| What is Induction and what does it involve? |
|
Definition
| chem signal causing change in cells, resulting in migration, differentition, or other change. |
|
|
Term
| What is Meiosis -- Gametogoinium? How is unique? |
|
Definition
| frist ell in line of gamete cell development, 46 chromosomes, Daughter cells differentiate into primary gametocytes, divide by standard mitosis |
|
|
Term
| What is Meiosis--- Gametocytes? |
|
Definition
Primary gametocyte: 46 chromosomes- line up in homologous pairs 4N; Divides in division I (reduction division to form 2 Secondary Gametocytes, each with 23 replicated chromosomes (2N)
Divide in Division II to form 2 Gametes each (total of 4), each gamete with 23 non replicated chromosomes (N) |
|
|
