Identify the human developmental stage shown as well as the related right place of its occurrence in a normal pregnant woman and select the right option for the two, together.

Developmental stage - Late morula, Site of occurrence - Middle part of Fallopian tube

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Developmental stage - Blastula, Site of occurrence - End part of Fallopian tube

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Developmental stage - Blastocyst, Site of occurrence - Uterine wall

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Developmental stage - 8-celled morula, Site of occurrence - Starting point of Fallopian tube

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Solution

The correct option is C Developmental stage - Blastocyst, Site of occurrence - Uterine wall
After fertilisation, a single-celled zygote develops into a multicellular structure called blastocyst. This blastocyst then gets embedded in the endometrium of the uterus and the process is known as implantation.

Suggest Corrections

	Developmental stage	Site of implantation
(a)	Late morula -	Middle part of Fallopian tube
(b)	Blastula -	End part of Fallopian tube
(c)	Blastocyst -	Uterine wall
(d)	8-cellec morula -	Starting point of Fallopian tube