Ablastocyst is associated with which stage of the reproductive cycle? a. puberty in the offspring b. the first trimester of pregnancy c. the second trimester of pregnancy d. the third trimester of pregnancy

The correct answer is A) Puberty in the offspring.

Blastocyst is a structure of cells that is formed after five days of fertilization. It possesses an outer layer of cells called trophoblast ( that forms major part or the placenta to provide nutrition to the developing embryo) and an inner cell mass ( that forms the whole embryo).

It is implanted in the uterus after the zona pellucida ( layer outside blastocyst) is broken down.

Pregnancy is divided into three trimester with three months in each trimester.

As blastocyst is the structure that is implanted in the uterus, therefore it is associated with the first trimester of pregnancy.