Question

If zona pellucida is digested during morula stage in fallopian tube then which of the following condition is likely to happen ?

• A. It leads to ectopic pregnancy
• B. Mobility is affected
• C. Cleavage is affected
• D. Corona radiata behave like zona pellucida

Answer 1

Answer: (A), (B)

It leads to ectopic pregnancy
Mobility is affected

Zona pelucida is the glycoprotein layer and surrounds the oocytes, their main function is the transportation and connection between the oocytes and arms in fallopian tubes. If this zona pellucida is digested at the morula stage then there will be the loss of connectivity and loss in mobility, this will also lead to oocyte dysfunction and the oocyte will attach to the outer side of uterus instead of the fallopian tube, this leads to the ectopic pregnancy.

So, the correct option is 'It leads to ectopic pregnancy and Mobility is affected'.