Biology

Pregnancy and Childbirth

964 Questions

This hub covers essential biology questions on pregnancy, fetal development, and childbirth. Topics include the placenta, maternal physiology, and the stages of labor. These concepts are frequently tested in general science sections of various competitive examinations.

Placenta and fetal nutritionStages of laborMaternal immune systemPregnancy complications

Pregnancy and Childbirth Questions

Multiple choice

Which of the following statements is correct about congenital diseases?

  1. They are present from birth.

  2. They occur after birth.

  3. They occur due to some infections.

  4. None of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Congenital diseases are defined as conditions that are present at or before birth, usually resulting from hereditary factors or developmental issues during pregnancy.

Multiple choice

Which of the following placental types is/are human feature?

  1. Chorio - Allantoic placenta

  2. Deciduate placenta

  3. Haemochorial placenta

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Human placentas are classified as chorio-allantoic (derived from both membranes), deciduate (part of the uterine lining is shed at birth), and haemochorial (maternal blood directly bathes the chorionic villi). Since all these descriptions apply to the human placenta, the correct answer is all of the above.

Multiple choice

The type of placenta found in human beings is :

  1. diffuse

  2. zonary

  3. cotyledonary

  4. meta discoidal
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

 The type of placenta found in human beings is metaiscoidal type. The early blastocyst is first of all covered with villi but later they disappear from its free surface, persisting on a small disc-shaped area, attached to the uterine wall.

Multiple choice

Amniocentesis involves the analysis of :

  1. amnion

  2. body fluid of amniotes

  3. amniotic fluid

  4. amino acids of protein
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The technique which makes use of amniotic fluid for the detection of gentic disorders is called amniocentesis. This process involves the removal of some amniotic fluid form around the foetus by means of slender needle inserted throguh the abdomen of the mother. It is used throuhg the abdomen of the mother. It is used to detect any hereditary disease in embryo. 

Multiple choice

Gestation period is the time between

  1. birth and puberty

  2. birth and fertilisation

  3. the foetus forming and being born

  4. fertilisation and birth
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Gestation period is the time between fertilisation and birth of the young ones.For most species, the amount a fetus grows before birth determines the length of the gestation period.

Multiple choice

Test tube baby means

  1. development of baby in a test tube

  2. that fertilisation is internal and the subsequent development of zygote is external

  3. that fertilisation is external and the subsequent development of zygote is internal

  4. None of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Test tube baby means that fertilisation is external and the subsequent development of zygote is internal.The process involves monitoring and stimulating a woman's ovulatory process, removing ovum or ova (egg or eggs) from the woman's ovaries and letting sperm fertilise them in a liquid in a laboratory. The fertilised egg (zygote) is cultured for 2–6 days in a growth medium and is then implanted in the same or another woman's uterus, with the intention of establishing a successful pregnancy.