FAQs
Monoamniotic-monochorionic Twins
These types of twins share a chorion, placenta, and an amniotic sac. This is the rarest type of twin, and it means a riskier pregnancy as the babies can get tangled in their own umbilical cords.
What question do twins raised apart help us answer? ›
When identical twins are separated at birth, it allows researchers to compare the effect of genetics with the environment. This gives helps us answer the question: "is behaviour nature or nurture?"
What are twins answers? ›
Answer: Twins are two offspring produced by the same pregnancy.
What is the riddle of the two twins? ›
Ask either twin "Which path would your twin tell me to take to get to the hospial?". Then go down the other path from the one they indicate. Reasoning: If the twin you ask is the truth-telling twin, he will know the other twin lies and will point you in the wrong direction, so will point the wrong way.
What are 7 twins called? ›
Septuplets (7)
The McCaughey septuplets (born 19 November 1997, in Des Moines, Iowa) are the world's first surviving set of septuplets.
Are there any male-female conjoined twins? ›
In those cases, one twin will be born male (XY chromosomes) and the other will be born female (with a single X chromosome). So far there haven't been any documented examples of this happening in conjoined twins. Since they're a type of identical twins, it's theoretically possible. But it would be extremely rare!
Are twins up to the mom or dad? ›
However, few genes appear to be definitively linked to hyperovulation, so it could just be that genetics in general on the mother's side contribute to the probability of having fraternal twins. Heredity on the father's side, on the other hand, does not increase a couple's odds of having twins.
What do you call twins that are different genders? ›
Definition. 00:00. Fraternal twins (also called dizygotic twins) result from the fertilization of two separate eggs with two different sperm during the same pregnancy. Fraternal twins may not have the same sex or appearance.
What is the hardest part of raising twins? ›
Your first year of raising twins will be tough. Expect less sleep, as your world will revolve around feeding your twins, burping them, changing them and putting them to sleep, all while constantly washing two sets of everything from clothes to feeding bottles. Financial costs are also higher with twins.
Can a twin have twins? ›
Heredity – a woman is more likely to conceive fraternal twins if she is a fraternal twin, has already had fraternal twins, or has siblings who are fraternal twins. These women are hyper-ovulators and are able to produce more than one egg at a time.
Who is the elder in twins? This should be pretty obvious, it's the twin born first. Although unless something goes very wrong with the delivery, the time is so close that there really isn't a elder or younger in twins.
Can a boy and girl be identical twins? ›
“Identical twins can be different sexes due to a phenomenon called gonadal dysgenesis, where mutations or changes occur in the genes that determine the development of genitalia,” says Dr. Andrews.
What are twins but 4? ›
Names for these include the following: twins – two fetuses. triplets – three fetuses. quadruplets – four fetuses.
What are half twins called? ›
You've probably heard of identical and fraternal twins, but a report released this week says there's a third kind -- sesquizygous twins or "semi-identical." Researchers say they share anywhere from 50 to 100% of their genomes.
What is the riddle a woman gives birth to two daughters? ›
Give the answer to this riddle: Two girls were born to the same mother, on the same day, at the same time, in the same month and year and yet they're not twins. How can this be ? Those who answered that the two babies are two sets of triplets are correct!
What is the most likely twin combination? ›
Dizygotic twins are the most common type and are known as fraternal twins. Two-thirds of all sets of twins are dizygotic. When two eggs are fertilized during the same pregnancy, the result is a set of dizygotic twins. They are fertilized by two different sperm.
What is the riskiest type of twins? ›
While there are risks associated with all twin pregnancies, dizygotic (fraternal) twin pregnancies usually bring about the least amount of complications, carrying the lowest risk of all types of twins. Worse complications are possible with monozygotic (identical) twins because the embryo is dividing.
What is the most common twin gender combination? ›
Mixed-gender twins are the most common type of fraternals, some 50 percent are boy-girl. To understand this combination: Males have XY chromosomes, females have XX chromosomes. You have a girl twin when the father's X chromosome combines with the mother's X chromosome.
What is the most common twin pairing? ›
Male–male twins: Sometimes called fraternal (unrelated to zygosity) twins (25%). Female-male twins: This is the most common pairing (50%), encompassing both "female-male" (25%) and "male-female" (25%) twins.
