Question

In: Anatomy and Physiology

How are identical twins formed? What causes some identical twins to have different placental and amnion?...

How are identical twins formed? What causes some identical twins to have different placental and amnion? What causes some identical twins to share amnion but not placental?

Solutions

Expert Solution

After fertilization of the egg with the sperm the embryo is formed. The formed embryo now sticks to the womb and then splits into two. Now we have two separate embryo of same genetic content and thus identical twins are formed.

According to when the zygote splits we can know that the twins share same or different placenta. If the splitting takes place within three days of fertilization the morula formed becomes blastocyst and it splits and now the both new blastocyst implants to the womb and thus the two feutus will grow in different placenta and the amniotic sacs will be different for those childs.

Identical twins with same amnion and different placenta is not possible but with same placenta and same aminon is possible. The morula formed with cell growth becomes blastocyst and get implanted in the womb. Then they split after one week of implantation and leads to the formation of same amnion. Like wise the twins with same placenta and different amnion is possible. I'm that case the blastocyst implants to the womb and splits as early as possible giving rise to same placenta and different amnion.


Related Solutions

1. Identical twins have identical copies of their brains. true false 2. The action of a...
1. Identical twins have identical copies of their brains. true false 2. The action of a neuron is “signal” or “no signal” due to the presence of neurotransmitters. true false 3. Physical and physiological differences between humans and life in other galaxies may prohibit contact. true false 4. The limbic system involves simple memory, including the recollection of favorable and unfavorable circumstances, allowing linkage of experiences as rudimentary “good” or “bad” feelings. true false 5. Within the neocortex lies the...
What is lightning and how is it formed? What is a lightning bolt? What are the causes of lightning?
What is lightning and how is it formed? What is a lightning bolt? What are the causes of lightning? How is electrical charge distributed through a thunderstorm? Can Lightning’s energy be caught and stored?
Tortoise shell cats that are identical twins are very unlikely to have the same splotchy mixture...
Tortoise shell cats that are identical twins are very unlikely to have the same splotchy mixture of yellow and black hairs. What is the genetic explanation for this?
tortoise shell cats that are identical twins are very unlikely to have the same splotchy mixture...
tortoise shell cats that are identical twins are very unlikely to have the same splotchy mixture of yellow and black hairs. What is the genetic explanation for this
What are the main orders of placental mammals? What are some representative species and distinguishing features...
What are the main orders of placental mammals? What are some representative species and distinguishing features of each of these orders?
What are “first principles”? What have been some of the first principles (or causes) that have...
What are “first principles”? What have been some of the first principles (or causes) that have been put forth in different cultures to explain the existence of the universe? Why would it be important to establish or agree upon “first principles” before discussing any topic in philosophy, including cosmology?
1. Explain why identical twins actually still look different (distinguishable from each other). 2. Explain the...
1. Explain why identical twins actually still look different (distinguishable from each other). 2. Explain the mechanism responsible for inactivating one of the X-chromosomes in every female 3. In a nutshell, explain how the central dogma of molecular biology has evolved in recent years? Please answer each question separately and in paragraph form.
Joanna has short fingers (brachydactyly). She has two olderbrothers who are identical twins; they both have...
Joanna has short fingers (brachydactyly). She has two olderbrothers who are identical twins; they both have short fingers.Joanna’s two younger sisters have normal fingers. Joanna’smother has normal fingers, and her father has short fingers.Joanna’s paternal grandmother (her father’s mother) has shortfingers; her paternal grandfather (her father’s father), who isnow deceased, had normal fingers. Both of Joanna’s maternalgrandparents (her mother’s parents) have normal fingers. Joanna marries Tom, who has normal fingers; they adopt a son namedBill who has normal fingers. Bill’s...
What is inflation and what are some causes of inflation?
What is inflation and what are some causes of inflation?
How do you understand price discrimination and what are some different types? Do you have some...
How do you understand price discrimination and what are some different types? Do you have some personal examples and do you think it is fair for consumers? What are the marketers' motivations to exercise price discrimination?
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT