Home › CBSE Class 12 (Science) › Biology › Human Reproduction › By when is the human embryo's heart formed?
By when is the human embryo's heart formed?
AAfter five months
BAfter one month
CAfter three months
DAfter seven months
Answer & Solution
Correct answer: B. After one month
The embryonic heart forms after the first month, and its sound can be heard with a stethoscope.
Related questions
Which hormone released by the maternal pituitary strengthens uterine contractions at birthIn which month are first foetal movements and head hair usually seen?The inner cell mass first differentiates into which two layers?Which hormone is produced in women only during pregnancy?Which finger-like projections on the trophoblast help form the placenta?Embedding of the blastocyst in the endometrium is called what?The outer layer of cells in a blastocyst is called what?What is an embryo with 8 to 16 blastomeres called?