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Flashcards in EXAM 2 Deck (11)
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1

process of cells becoming more specialized

Differentiation

2

How does differentiation divide?

mesoderm, endoderm, ectoderm

3

molecules found in egg cells

Cytoplasmic Determinants

4

type of cell communication

Induction

5

Multiple births
Dizygotic twins (DZ):

*2 sperm and 2 eggs
•Also called Fraternal Twins

6

Monozygotic twins (MZ):

•1 sperm and 1 egg that splits early in development
•Also called Identical Twins

7

Acrosomal Reaction

During fertilization, a sperm must first fuse with the plasma membrane and then penetrate the female egg cell in order to fertilize it.

8

Gastrulation

phase early in the embryonic development of most animals, during which the single-layered blastula is reorganized into a multilayered structure known as the gastrula

9

Types of stem cells
Naturally occurring

•Embryonic stem cells
•Adult stem cells

10

stem cells Technologically created

•Somatic cell nuclear transfer (SCNT)
•Induced pluripotent stem cells (iPSC)

11

Hematopoietic stem cells make

5 billion new blood cells every day!