Chapter 29 Human Development and Aging

Chapter 29 Human Development and Aging



1. Fertilization occurs:


(A) Fusion of cytoplasm


(B) Fusion of nuclei (C) Fusion of cytosol (D) None of them
Ans B Diff Easy Page 1320


2. The life of a sperm in uterine tube: (A) 30 minutes to 2 hours
(8) 24 hours (C) 3-5 days (D) 5-10 days
Ans C Diff Medium Page 1320


3. The splitting of zygote occurs at


(A) Meiosis


(B) Mitosis


(C) Both a & b


(D) Blastocyte stage


Ans D Diff Moderate Page 1322


5. Typical IVF begin with: (A) Egg collection
(B) Administering a course of gonadotrophins


(C) Sperm washing


(D) Sperm counting


Ans A Diff Easy Page 1323
6. The daughter cell produced by cleavage is termed as: (A) Blastocyst

,
, (B) Blastocoel (C) Blastomere (D) Placenta
Ans C Diff Medium Page 1325


7. The blastocyst that fails to implant: (A) Retained in the body
(B) Shed alone with menses


(C) Both a & b


(D) Shed with the endometrium during menses


Ans D Diff Medium Page 1326


8. The function of human chronic gonadotropin:


(A) Inhibit the production of progesterone


(B) Inhibit the production of estrogen (C) Enable corpus luteum to survive (D) Shortens
the corpus lute um
Ans C Diff Hard Page 1327


9. A primitive excretory duct of the embryo that will become part of urinary bladder: (A) Yolk
(B) Allantois (C) Chorion (D)Hypoblast
Ans B Diff Moderate Page 1330


10. A sheet of the cells that displaces the hypo blast and lies adjacent to the yolk sac is termed as:
(A) Endoderm
(B) Mesoderm


(C) Ectoderm


(D) AII of above


Ans A Diff Medium Page 1330