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प्रश्न
What do you mean by identical and fraternal twins?
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उत्तर
Identical Twins (Produced from one egg): Sometimes a single fertilized egg may get split and separated into two parts during its early stages of cell division. Each of these two split parts then behaves like an independent egg and produces one complete individual each. These are called Identical twins.
Fraternal Twins: Sometimes, two eggs are released from ovaries at a time and both may get fertilized to produce two individuals. These are called fraternal twins.
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संबंधित प्रश्न
Answer the following question.
Explain the steps of parturition.
Identify the parts labelled in the given diagram.
In human female, during which state of parturition does amnion and chorion rupture?
The process of expelling or pushing the baby out from mother's body is called ______.
Name the three stages of parturition.
Write one sentence using the following term pertaining to reproduction in humans.
Gestation
Write one sentence using the following term pertaining to reproduction in humans.
280 days
Name these:
3 membranous, protective layers around the foetus.
Distinguish between the following pair:
Pregnancy and parturition
Hormone causing vigorous contraction of myometrium to initiate parturition is ______.
