Podcast
Questions and Answers
What is the definition of twinning?
What is the definition of twinning?
- The birth of quadruplets
- The birth of conjoined twins
- The bearing of two children at one birth (correct)
- The birth of triplets
What percentage of twins are dizygotic (fraternal) twins?
What percentage of twins are dizygotic (fraternal) twins?
- 70%
- 60%
- 80%
- 90% (correct)
What is the incidence of monozygotic (identical) twins per 1000 births?
What is the incidence of monozygotic (identical) twins per 1000 births?
- 5-6 per 1000 births
- 3-4 per 1000 births (correct)
- 7-8 per 1000 births
- 1-2 per 1000 births
What is a factor that increases the chances of twinning?
What is a factor that increases the chances of twinning?
What is the racial group with the highest incidence of twinning?
What is the racial group with the highest incidence of twinning?
What is a method that increases the chances of twinning?
What is a method that increases the chances of twinning?
How are dizygotic twins created?
How are dizygotic twins created?
What is a characteristic of dizygotic twins?
What is a characteristic of dizygotic twins?
How are the zygotes implanted in the uterus in dizygotic twins?
How are the zygotes implanted in the uterus in dizygotic twins?
What is the likelihood of a woman conceiving fraternal twins if she is a fraternal twin?
What is the likelihood of a woman conceiving fraternal twins if she is a fraternal twin?
What is the result of the inner cell mass splitting in a blastocyst?
What is the result of the inner cell mass splitting in a blastocyst?
What is the rare case of monozygotic twins?
What is the rare case of monozygotic twins?
What is the percentage of women who give birth to two babies when pregnant with twins?
What is the percentage of women who give birth to two babies when pregnant with twins?
What is the outcome of twin-twin transfusion syndrome?
What is the outcome of twin-twin transfusion syndrome?
What are conjoined twins also known as?
What are conjoined twins also known as?
What is the result of incomplete separation of the inner cell mass?
What is the result of incomplete separation of the inner cell mass?
What is the type of conjoined twins where bodies are fused from the upper chest to the lower chest?
What is the type of conjoined twins where bodies are fused from the upper chest to the lower chest?
What is the incidence of low birth rate in twins?
What is the incidence of low birth rate in twins?
What is the mortality rate of twins compared to singletons?
What is the mortality rate of twins compared to singletons?
What is the percentage of twins born preterm?
What is the percentage of twins born preterm?
What occurs in dizygotic twins during implantation?
What occurs in dizygotic twins during implantation?
What is a characteristic of erythrocyte mosaicism in dizygotic twins?
What is a characteristic of erythrocyte mosaicism in dizygotic twins?
What is a characteristic of monozygotic twins?
What is a characteristic of monozygotic twins?
What is one way monozygotic twins can arise?
What is one way monozygotic twins can arise?
What happens when the zygote splits at the two-cell stage in monozygotic twins?
What happens when the zygote splits at the two-cell stage in monozygotic twins?
What is the arrangement of membranes in monozygotic twins that split at the two-cell stage?
What is the arrangement of membranes in monozygotic twins that split at the two-cell stage?
How can monozygotic twins be recognized?
How can monozygotic twins be recognized?
At what stages can the zygote split to form monozygotic twins?
At what stages can the zygote split to form monozygotic twins?
What is a characteristic of the implantation of dizygotic twins?
What is a characteristic of the implantation of dizygotic twins?
What can occur when the walls of the chorionic sac fuse in dizygotic twins?
What can occur when the walls of the chorionic sac fuse in dizygotic twins?
