QuestionSBA
QuestionChoice
This is incorrect. The morula contains 16 cells and is the stage before the embryo becomes a blastocyst.
10004417
b
Morula
QuestionChoice
This is incorrect. The embryo becomes a blastocyst first before implantation occurs.
10004420
e
8 cell stage
QuestionChoice
This is correct. A blastocyst is when the embryo reaches a stage where it is a rapidly dividing ball of cells. The embryo reaches the blastocyst stage around 5 days after fertilisation after which it begins to implant into the uterine wall.
10004416
a
Blastocyst
QuestionChoice
This is incorrect. The embryo becomes a blastocyst first before implantation occurs.
10004419
d
4 cell stage
QuestionChoice
This is incorrect. A zygote is a diploid cell formed after fertilisation when the two haploid gametes fuse.
10004418
c
Zygote
Concept
Chapter
2693
4284
Implantation
Topic
214
Reproduction
13430
When the fertilised egg implants into the uterine wall, what stage of development is it at?
a