can TWO sperm fertilise ONE egg??????

[InoCabdi]

we learnt that only ONE sperm can fertilise an egg.
and TWO sperm cant.

but what if it can?

if you're gonna tell me to stop imagining , leave this thread.

What if TWO sperm fertilise ONE egg?

Say it happens?

Will the offspring have 69 chromosomes?
if it does, what will happen to the offspring?

[FarhanYare]

Triploidy occurs in several different ways. The extra set of chromosomes can be inherited from the father (paternal inheritance) or they can be from the mother (maternal inheritance). The most common mechanism for triploidy is the fertilization of a single egg by two sperm. This results in a triploid egg with two sets of paternal chromosomes and one set of maternal chromosomes. This accounts for about 60% of cases of triploidy. The other mechanism is an error in cell division in which an egg cell ends up with 46 chromosomes instead of 23. This egg with 46 chromosomes is fertilized by a sperm with 23 chromosomes, resulting in a fertilized egg with 69 chromosomes, which then has two sets of maternal chromosomes and one set of paternal chromosomes. This mechanism is responsible for about 40% of cases of triploidy. The physical effects of triploidy differ depending on whether the extra set of chromosomes was inherited from the mother (maternally inherited) or from the father (paternally inherited).

In pregnancies in which the extra set of chromosomes is maternally inherited, the fetuses tend to be well-formed, with a small head (microcephaly). The placenta in these pregnancies is generally enlarged and cystic (filled with cysts). This type of placenta is often referred to as a hydati-form mole and the pregnancy as a whole may be referred to as a partial molar pregnancy. In pregnancies in which the extra set of chromosomes is paternally inherited, the fetuses have severe growth retardation, a large head, and a small, non-cystic placenta.

The physical birth defects seen in triploidy are variable. All fetuses will have some of these birth defects, but very few will have all of them. The birth defects most commonly seen are heart defects, cleft lip, neural tube defects, kidney malformation, abnormal genitalia (males), and defects in the abdominal wall. Regardless of the presence or absence of these birth defects, triploidy is incompatible with life.

Triploidy is a sporadic (or accidental) event. It is not caused by anything that a parent may or may not have done. Unlike some other chromosome abnormalities (trisomy 21 or Downs syndrome), triploidy is not associated with a mother's age. This means that there is not an increased risk for triploidy for an older mother to have a pregnancy. Because triploidy is an accidental event, there is no increased recurrence risk in future pregnancies. A woman who has had one triploid pregnancy is not at any increased risk to have a second one.

[DonCorleone]

Not exactly two sperm but if the single sperm splits in half then the children turn out to be twins so technically it's two pieces of sperm material however if they don't disconnect from each other they turn out to be siameze.

[Basra-]

LOL@the following posts following the stupid original first post.

[DR-YALAXOOW]

Yes it can. In holland women gave brith to twins whit different biological fathers . One black and white. .

[FarhanYare]

^^

[SelfD]

Not exactly two sperm but if the single sperm splits in half then the children turn out to be twins so technically it's two pieces of sperm material however if they don't disconnect from each other they turn out to be siameze.

the sperm itself doesnt split..the zygote( fertilized egg) splits. So...no

[DonCorleone]

Not exactly two sperm but if the single sperm splits in half then the children turn out to be twins so technically it's two pieces of sperm material however if they don't disconnect from each other they turn out to be siameze.

the sperm itself doesnt split..the zygote( fertilized egg) splits. So...no

Ms.Biology

[SelfD]

Grade 9 biology

[Protagonist]

Why you ask do you think have 2 daddies

[DonCorleone]

Grade 9 biology

I mus have been sleeping

[jamal9]

a white woman was gang raped by a white man and a black man at the same time. she became pregnant with twins. she gave birth to a pure white boy and a black boy.

so, yes one egg can be fucked by 2 sperms. but it needs to happen real fast before the wall of the egg becomes hard like that of the chicken.

[SelfD]

a white woman was gang raped by a white man and a black man at the same time. she became pregnant with twins. she gave birth to a pure white boy and a black boy.

so, yes one egg can be fucked by 2 sperms. but it needs to happen real fast before the wall of the egg becomes hard like that of the chicken.

Sometimes, women release 2 eggs during ovulation. It could be that its two separate eggs and 2 sperms..that is how people have fraternal twins.
Was the DNA of the dad diff for both or its those random things like where a nigerian couple have a blue-eyed white baby kinda thing?

[FarhanYare]

yaah jamal did you make that story up? If this is true only one male fathered those twins (one egg per sperm rule ). Either, the dad or mum had a black ancestor/s in their family tree, or it is just by chance .

[InoCabdi]

Im talking about TWO SPERM CELLS enter ONE EGG CELL and the EGG CELL DOES NOT DIVIDE.
WHAT WILL HAPPEN?