MEDICAL
OVARIES AND FALLOPIAN TUBES
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
If an egg that has been fertilized by a sperm splits into two while it is in the fallopian tube, the beginning of two babies can start to grow. These are known as
|
|
identical twins
|
|
|
fraternal twins
|
|
|
triplets
|
|
|
None of the above
|
Explanation:
Detailed explanation-1: -Around two in three sets of twins are fraternal. Two separate eggs (ova) are fertilised by two separate sperm, resulting in fraternal or ‘dizygotic’ (two-cell) twins. These babies will be no more alike than siblings born at separate times.
Detailed explanation-2: -Though all identical twins are formed very early in pregnancy, there is some variation in exactly how early the fertilised egg splits into two. This can happen at the two cell stage on Day 2, the early blastocyst stage on Day 4, or in the late blastocyst stage on Day 6.
There is 1 question to complete.