Which of the following events marks the beginning of gastrulation?
Part of decidua lying between chorionic villi and myometrium is
During embryonic development of humans, second cleavage is completed after about
Presence of which hormone is diagnosed in Gravidex test?
Find the odd one w.r.t germ layer which forms the following structures?
In mammal’s embryo proper is formed from
Which of the following is correct regarding cleavage division?
Which of the following process does not occur after first trimester?
Implantation usually occurs at
Which of the following statements is incorrect?