EXAM 2

Question 1

process of cells becoming more specialized

Answer 1

Differentiation

Question 2

How does differentiation divide?

Answer 2

mesoderm, endoderm, ectoderm

Question 3

molecules found in egg cells

Answer 3

Cytoplasmic Determinants

Question 4

type of cell communication

Answer 4

Induction

Question 5

Multiple births
Dizygotic twins (DZ):

Answer 5

*2 sperm and 2 eggs

•Also called Fraternal Twins

Question 6

Monozygotic twins (MZ):

Answer 6

• 1 sperm and 1 egg that splits early in development

* Also called Identical Twins

Question 7

Acrosomal Reaction

Answer 7

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

Question 8

Gastrulation

Answer 8

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

Question 9

Types of stem cells

Naturally occurring

Answer 9

• Embryonic stem cells

* Adult stem cells

Question 10

stem cells Technologically created

Answer 10

• Somatic cell nuclear transfer (SCNT)

* Induced pluripotent stem cells (iPSC)

Question 11

Hematopoietic stem cells make

Answer 11

5 billion new blood cells every day!