A woman gives birth to quadruplets or four infants. two of her children are identical twins. the other two are fraternal twins. how could this have happened

Question

26-05-2018
Health

contestada

A woman gives birth to quadruplets or four infants. two of her children are identical twins. the other two are fraternal twins. how could this have happened

Respuesta :

Otras preguntas

What statements describe the properties of a plane? Select three options. 1)A plane is one dimensional. 2)A plane has length and width. 3)A plane extends infini

In step one do you found the volume (in cubic feet) of the main tank(359,006.67). The maximum density of killer whales per cubic foot is 0.000011142, what is th

Triggers can be created in operational systemsto keep track of recently ------------------ records.o Deletedo Updatedo Inserted

Mrs. Finkbiner’s classroom includes richly equipped learning centers, as well as small groups and individuals solving self-chosen problems. She guides and suppo

What are the roots squares of x minus 8x plus 9 equal to 0

William has noticed that his daughter Bonnie has recently begun to ask a lot of questions like, “What can I be when I grow up?” and “How come the sky is blue?”

Newton Bay is a sparsely populated area. The government plans to build an international airport there and announces this plan publicly. When hotel chains learn

What did the muckrakers try to do?

Using the conversion factor convert 1.56 ng NH3 to moles.

Three batteries are connected in series so that the total voltage is 54 volts. The voltage of the first battery is twice the voltage of the second and 1/3 the v

gradman555p98x9p gradman555p98x9p · Answer 1 · 2018-06-05T13:03:31+02:00

To explain this, let's go back to the fertilization:
The identical twins are formed by an association of one spermatozoid and one ovule to form an egg. this egg will start growing and suddenly divide into 2 eggs, to give afterward 2 individual with the same genes.
The fraternal twin comes from two different spermatozoids which will fertilize one ovule each, and give 2 different individuals sharing half of their genes.

In this case, both phenomena happened. It means there were three spermatozoids fertilizing one ovule each. And one of the eggs divided into 2 eggs. it ended by 2 eggs which are different and 2 eggs which came from the same one.