EMBRYOLOGY
FERTILISATION EARLY DEVELOPMENT OF EMBRYO AND IMPLANTATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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a fertilized egg dividing into two blastocysts
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two eggs being released at the same time, and both are fertilized
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two embryos implanted in the uterus through invitro fertilization
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all of these can result in twins
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Detailed explanation-1: -Even though researchers haven’t pinpointed the cause, some people are at an increased likelihood of having twins. According to The American Society for Reproductive Medicine, women who are fraternal twins have a 1 in 60 chance of having twins, and men who are fraternal twins have a 1 in 125 chance of fathering twins.
Detailed explanation-2: -Factors that increase the chance of twins include: consuming high amounts of dairy foods, being over the age of 30, and conceiving while breastfeeding. Many fertility drugs including Clomid, Gonal-F, and Follistim also increase the odds of a twin pregnancy.
Detailed explanation-3: -Fraternal Twins (Dizygotic) Identical Twins (Monozygotic) Conjoined Twins. Do Twins Share a Placenta and Amniotic Sac? How Common Is Having Twins? 01-Oct-2019