Punjab 12th Class Biology Chapter 19 Growth and Development Mcqs Test Online Growth and Development Biology Chapter 19 Mcqs Test Online Punjab Boards 12th Class 123456789 Question 1 of 9Biology 1. Which of the following are mismatched? 1.Ectoderm; circulatory system 2.Endoderm; lining of the digestive tube 3.Mesoderm; notochord 4.Mesoderm; reproductive system Question 1 of 9Question 2 of 9 2. In human development, ectoderm cells migrate through the primitive streak to form: 1.The yolk sac2.The chorion 3.Mesoderm 4.Endoderm Question 2 of 9Question 3 of 9 3. The process by which a tissue causes another tissue to differentiate is called: 1.Cleavage 2.Induction 3.Gastrulation 4.Metamorphosis Question 3 of 9Question 4 of 9 4. Identical twins result from the fertilization of: 1.Two ova by one sperm 2.One ovum by two sperms 3.One ovum by one sperm 4.Two ova by two sperms Question 4 of 9Question 5 of 9 5. The end of cleavage is marked by the formation of 1.Zygote 2.Archenteron 3.Blastula 4.Three germ layers Question 5 of 9Question 6 of 9 6. A woman has several miscarriages. Her doctor suspected that a hormonal insufficiency was causing the lining of the uterus to breakdown, as does during menstruation, terminating her pregnancies. Treatment with which of the following might help her pregnancy? 1.Follicle stimulating hormone 2.Progesterone 3.Luteinizing hormone 4.Oxytocin Question 6 of 9Question 7 of 9 7. How does a zygote differ from an ovum? 1.A zygote is much larger 2.A zygote has more chromosomes 3.A zygote divides by meiosis4.A zygote is smaller Question 7 of 9Question 8 of 9 8. Which of the following has three germ layers? 1.Trophoblast 2.Embryonic disc 3.Blastula 4.Gastrula Question 8 of 9Question 9 of 9 9. Which of the following consists of both foetal and maternal tissue? 1.Allantois 2.Amnion 3.Placenta 4.Umbilical cord Question 9 of 9 Loading... Test By Subject Punjab Test By Topics 12th Class Biology You Can Learn and Gain more Knowledge through our Online Quiz and Testing system Just Search your desired Preparation subject at Gotest.