Egg
The figure below shows the process of egg production and early development of a healthy fertilized egg in the human reproductive system.
Which of the following statements is NOT correct?
(A) Three polar bodies are attached to W.
(B) X produces progesterone.
(C) The chromosome number for each cell in Y is 46.
(D) Z is at the stage of blastocyst
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1 solution
The first polar body is attached to ovulated egg and the two second polar bodies will be formed after fertilization occurred. Thus three polar bodies will be found attached to egg after and fertilization occurred and then meiosis completed. Corpus luteum produces estrogen and progesterone. Each blastomere as a human cell has 46 chromosomes. At the time of implantation, zygote is at the stage of blastocyst.