principles of

Question 1

weeks 0-3

Answer 1

conceptus/ embryo

Question 2

weeks 3-8

Answer 2

embryonic period

Question 3

weeks 9-40

Answer 3

foetal priod

Question 4

phases of embryogenesis

Answer 4

Gametogenesis
Fertilisation
Cleavage
Gastrulation
Formation of a body plan
Organogenesis

Question 5

gametogenesis

Answer 5

formation of gamete

Question 6

gamete

Answer 6

cell with a complement of 23 chromosomes

Question 7

oogenesis

Answer 7

formation of female gametes

Question 8

spermatogenesis

Answer 8

formation of male gametes

Question 9

haploid

Answer 9

23 chromsomes

Question 10

what is downs typically caused by

Answer 10

NON DYSJUNCTION

Question 11

fertilisation

Answer 11

unuion of gametes
fusion of sperm and oocyte

Question 12

is a zygote haploid or diploid

Answer 12

diploid

Question 13

cleavage

Answer 13

rapid mitotic cell division

Question 14

is there an increase in cell size during cleavage

Answer 14

no

Question 15

organogenesis

Answer 15

formation of organs

Question 16

foetal period

Answer 16

growth and weight gain

Question 17

top of foetal head

Answer 17

cranial

Question 18

bottom of foetal head

Answer 18

caudal

Question 19

induction

Answer 19

ability of one cell type to cause another to differentiate