CLEAVAGE

Question 1

series of cell division,

Answer 1

CLEAVAGE

Question 2

cleavage begins with compaction of ?

Answer 2

MORULA

Question 3

this is the first mitotic division, and is also known as the beggining of the cleavage

Answer 3

TELOPHASE

Question 4

2 types of cleavage

Answer 4

1. holoblastic
2. meroblastic cleavage

Question 5

also known as EQUAL CLEAVAGE,
it occurs in mammals, and contain small amount of yolk

Answer 5

HOLOBLASTIC CLEAVAGE

Question 6

also known as DISCOID CLEAVAGE
occures in BIRDS & AMPHIBIANS
contain large amount of yolk

Answer 6

MEROBLASTIC

Question 7

numerous “ normal size of cells”

Answer 7

blastomeres

Question 8

first cleavage division (mitosis 1) occurs at?

Answer 8

1 to 5 dayf ff. ovulation

Question 9

mitosis 1 results in

Answer 9

2 DAUGHTER BLASTOMERES of equal size

Question 10

it’s a solid ball of cells, it terminates the start of BLASTOCYST

Answer 10

Morula

Question 11

morula consist of how many blastomeres ?

Answer 11

16-24

Question 12

morula has many cell division?

Answer 12

4-6

Question 13

when morula leave the uterine tube and enters the uterus it’s about what cell stage? and how many days ?

Answer 13

16 cell stgae. and 4-7 days

Question 14

morula undergoes transitional changes.

Question 15

trophoblast form the?

Answer 15

CHORION & AMNION

Question 16

CHORION AND AMNION is destined to become ?

Answer 16

inner cell mass or embryonic disk.

Question 17

inner cell mass form the 2 EXTRAEMBRYONIC MEMBRANES

Answer 17

YOLK SAC & AMNION

Question 18

4 to 5 cell divisions occur with complete nuclear division

Answer 18

KARYOKINESIS

Question 19

Iincomplete cytoplasmic division

Answer 19

CYTOKINESIS

Question 20

it indicates the location of the nucleus & cytoplasm of zygote

Answer 20

EMBRYONIC DISK

Question 21

During EARLY BLASTULA stage what happened to to trophoblast?

Answer 21

Trophoblast degenerates, exposing the inner cell mass. ( EMBRYONIC DISK)

Question 21

During EARLY BLASTULA stage what happened to to trophoblast?

Answer 21

Trophoblast degenerates, exposing the inner cell mass. ( EMBRYONIC DISK)

Question 22

During LATE BLASTULA stage what happened to zona pellucida?

Answer 22

zona pellucida ruptures and blastocyst hatches and elongates

Question 23

in blastula stage, embryoblast is now called ?

Answer 23

epiblast

Question 24

inner layer within the blastocyst

Answer 24

HYPOBLAST

Question 25

The space appropriate from blastocoele and enclosed by the hypoblast is called the ?

Answer 25

PRIMITIVE GUT which becomes the YOLK SAC

Question 26

the part of blastocoele outside the primitive gut becomes the??

Answer 26

COELOM