Biology Reproduction SZABMU 2022
PMDC Verified Question 52 of 81
After fertilization zygote takes ____ for its journey from fallopian tube to uterus.
A
6-7 days
B
3-6 days
C
10-12 days
D
12-15 days
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option B: 3-6 days
Concept:

Early embryonic development involves cleavage cell divisions as the embryo physically travels toward the site of implantation.

Solution:

  • Fertilization occurs in the ampulla (upper third) of the fallopian tube.


  • Driven by the beating of cilia and peristaltic muscular contractions of the tube, the zygote begins its journey.


  • During this time, it divides into a morula and then a blastocyst, arriving in the uterine cavity after approximately 3 to 6 days.


Why other options are incorrect:

Implantation begins around day 6-7, but the journey to merely reach the uterus is shorter. Waiting 10-15 days would result in the blastocyst outgrowing its zona pellucida before reaching the necessary uterine environment.

Quality & Fidelity Assurance: Every question on BeambePrep is rigorously curated against the official PMDC syllabus with zero filler, zero out-of-syllabus content, and zero typos. When an authentic past paper originally contained a historical mistake or ambiguity from the examining board (such as UHS or NUMS), BeambePrep faithfully reflects the original paper while detailing the nuance and scientific consensus in the autopsy above.

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