The diameter of a fully mature ovum is about
A. 100 microns
B. 90 microns
C. 130 microns
D. 140 microns
Correct Answer: C. 130 microns
Explanation
The diameter of a fully mature human ovum is about 120 micrometers (µm).
You may also see it written as a range: 100–120 µm, but the commonly accepted value is 120 µm.
Other Options Details
Here are the descriptions of all the options:
A. 100 microns
This option states that the size or measurement being referred to is 100 micrometers (µm). A micron is one-millionth of a meter.
B. 90 microns
This means the size/measurement is 90 micrometers (µm), which is slightly smaller than 100 microns.
C. 130 microns
This option indicates a measurement of 130 micrometers (µm), larger than both 90 and 100 microns.
D. 140 microns
This option refers to 140 micrometers (µm), the largest measurement among the four choices.
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Writer: Vandita Singh, Lucknow (GS India Nursing Group