Pregnancy and Embryonic Development
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Human Reproduction(NCERT)

286484 In human embryology, the chorion is derived from

1 Ectoderm
2 Mesoderm
3 Endoderm
4 Trophoblast
NCERT Page-53 / N-38
Human Reproduction(NCERT)

286485 The majority of human organ formation occurs

1 entirely during the last trimester of pregnancy.
2 after implantation and during the first trimester of pregnancy.
3 shortly before the onset of true labour.
4 due to the stimulation generated during Braxton Hicks contractions.
NCERT Page-54 / N-38
Human Reproduction(NCERT)

286486 Placenta facilitate

1 the supply of oxygen and nutrients to the embryo.
2 removal of carbon dioxide.
3 removal of excretory/waste materials.
4 All of the above
NCERT Page-53 / N-37
Human Reproduction(NCERT)

286487 Identical twins result when

1 the zygote divides and the daughter cells split and develop independently.
2 two eggs with identical genetic material are fertilized, each by a different sperm.
3 an embryo splits before cellular differentiation has occurred.
4 Both (a)and (c)
Human Reproduction(NCERT)

286488 What will happen to pregnancy if placenta fails to function during the gestation?

1 The pregnancy would not continue.
2 The foetus would be born prematurely.
3 There would be no effect on the pregnancy.
4 The corpus luteum would continue produce hormone as an alternative source until birth.
NEET DIGITAL LIBRARY
Human Reproduction(NCERT)

286484 In human embryology, the chorion is derived from

1 Ectoderm
2 Mesoderm
3 Endoderm
4 Trophoblast
NCERT Page-53 / N-38
Human Reproduction(NCERT)

286485 The majority of human organ formation occurs

1 entirely during the last trimester of pregnancy.
2 after implantation and during the first trimester of pregnancy.
3 shortly before the onset of true labour.
4 due to the stimulation generated during Braxton Hicks contractions.
NCERT Page-54 / N-38
Human Reproduction(NCERT)

286486 Placenta facilitate

1 the supply of oxygen and nutrients to the embryo.
2 removal of carbon dioxide.
3 removal of excretory/waste materials.
4 All of the above
NCERT Page-53 / N-37
Human Reproduction(NCERT)

286487 Identical twins result when

1 the zygote divides and the daughter cells split and develop independently.
2 two eggs with identical genetic material are fertilized, each by a different sperm.
3 an embryo splits before cellular differentiation has occurred.
4 Both (a)and (c)
Human Reproduction(NCERT)

286488 What will happen to pregnancy if placenta fails to function during the gestation?

1 The pregnancy would not continue.
2 The foetus would be born prematurely.
3 There would be no effect on the pregnancy.
4 The corpus luteum would continue produce hormone as an alternative source until birth.
Join With Us for More Updates
Human Reproduction(NCERT)

286484 In human embryology, the chorion is derived from

1 Ectoderm
2 Mesoderm
3 Endoderm
4 Trophoblast
NCERT Page-53 / N-38
Human Reproduction(NCERT)

286485 The majority of human organ formation occurs

1 entirely during the last trimester of pregnancy.
2 after implantation and during the first trimester of pregnancy.
3 shortly before the onset of true labour.
4 due to the stimulation generated during Braxton Hicks contractions.
NCERT Page-54 / N-38
Human Reproduction(NCERT)

286486 Placenta facilitate

1 the supply of oxygen and nutrients to the embryo.
2 removal of carbon dioxide.
3 removal of excretory/waste materials.
4 All of the above
NCERT Page-53 / N-37
Human Reproduction(NCERT)

286487 Identical twins result when

1 the zygote divides and the daughter cells split and develop independently.
2 two eggs with identical genetic material are fertilized, each by a different sperm.
3 an embryo splits before cellular differentiation has occurred.
4 Both (a)and (c)
Human Reproduction(NCERT)

286488 What will happen to pregnancy if placenta fails to function during the gestation?

1 The pregnancy would not continue.
2 The foetus would be born prematurely.
3 There would be no effect on the pregnancy.
4 The corpus luteum would continue produce hormone as an alternative source until birth.
For More Updates join with Us
Human Reproduction(NCERT)

286484 In human embryology, the chorion is derived from

1 Ectoderm
2 Mesoderm
3 Endoderm
4 Trophoblast
NCERT Page-53 / N-38
Human Reproduction(NCERT)

286485 The majority of human organ formation occurs

1 entirely during the last trimester of pregnancy.
2 after implantation and during the first trimester of pregnancy.
3 shortly before the onset of true labour.
4 due to the stimulation generated during Braxton Hicks contractions.
NCERT Page-54 / N-38
Human Reproduction(NCERT)

286486 Placenta facilitate

1 the supply of oxygen and nutrients to the embryo.
2 removal of carbon dioxide.
3 removal of excretory/waste materials.
4 All of the above
NCERT Page-53 / N-37
Human Reproduction(NCERT)

286487 Identical twins result when

1 the zygote divides and the daughter cells split and develop independently.
2 two eggs with identical genetic material are fertilized, each by a different sperm.
3 an embryo splits before cellular differentiation has occurred.
4 Both (a)and (c)
Human Reproduction(NCERT)

286488 What will happen to pregnancy if placenta fails to function during the gestation?

1 The pregnancy would not continue.
2 The foetus would be born prematurely.
3 There would be no effect on the pregnancy.
4 The corpus luteum would continue produce hormone as an alternative source until birth.
NEET DIGITAL LIBRARY
Human Reproduction(NCERT)

286484 In human embryology, the chorion is derived from

1 Ectoderm
2 Mesoderm
3 Endoderm
4 Trophoblast
NCERT Page-53 / N-38
Human Reproduction(NCERT)

286485 The majority of human organ formation occurs

1 entirely during the last trimester of pregnancy.
2 after implantation and during the first trimester of pregnancy.
3 shortly before the onset of true labour.
4 due to the stimulation generated during Braxton Hicks contractions.
NCERT Page-54 / N-38
Human Reproduction(NCERT)

286486 Placenta facilitate

1 the supply of oxygen and nutrients to the embryo.
2 removal of carbon dioxide.
3 removal of excretory/waste materials.
4 All of the above
NCERT Page-53 / N-37
Human Reproduction(NCERT)

286487 Identical twins result when

1 the zygote divides and the daughter cells split and develop independently.
2 two eggs with identical genetic material are fertilized, each by a different sperm.
3 an embryo splits before cellular differentiation has occurred.
4 Both (a)and (c)
Human Reproduction(NCERT)

286488 What will happen to pregnancy if placenta fails to function during the gestation?

1 The pregnancy would not continue.
2 The foetus would be born prematurely.
3 There would be no effect on the pregnancy.
4 The corpus luteum would continue produce hormone as an alternative source until birth.