11- Gastrulation

Question 1

Ectoderm becomes

Answer 1

Epidermis and nervous system

Question 2

Mesoderm becomes

Answer 2

Muscle
Bone
Connective tissue
Circulatory system
Urogenital system
Somatic tissue of gonads and kidneys

Question 3

Endoderm gives rise to

Answer 3

Gut lining derivatives

Epithelial portion of liver, pancreas, lungs

Question 4

BMP Inhibitors

Answer 4

Chordin
Noggin
Follistatin

Question 5

Wnt Inhibitors

Answer 5

Cerberus
Frzb
Dickkopf
IGF

Question 6

ICM Expresses

Answer 6

Nanog
Oct4
Sox2

Question 7

Trophoectoderm Expresses

Answer 7

CDX2

Question 8

Primitive endoderm expresses

Answer 8

Gata6

Question 9

Protosomes

Answer 9

Mouth forms first

Question 10

Deuterostomes

Answer 10

Anus forms first

Question 11

Invagination

Answer 11

Sheet of cells move in, forms tube

Question 12

Involution

Answer 12

Sheet of cells move in , cover internal surface

Question 13

Ingression

Answer 13

Individual cells move in

Question 14

Delamination

Answer 14

Cells move in and form independent layers

Question 15

Epiboly

Answer 15

Outer cells expand and enclose inner sheets

Question 16

Meridonal cleavage

Answer 16

Cleavage furrow passes through animal/vegetal poles

Question 17

Equatorial cleavage

Answer 17

Seperates animal and vegetal pole

Question 18

Holoblastic cleavage

Answer 18

Complete cytokinesis

Question 19

Isolecithal yolk distrubution

Answer 19

Evenly distributed yolkd

Question 20

Sea Urchin Cleavage

Answer 20

Holoblastic (radial)

Unequal (cleaved close to animal pole)

Question 21

Frog Cleavage

Answer 21

Meroblastic

Vegetal hemisphere is lrger