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Is it the sperm or egg that determines twins?
Sperm contains either an X(female) chromosome or a Y(male) chromosome, whereas the egg contains only an X(female) chromosome. Neither the egg nor the sperm can be said to have a"sex." The combination of an X-bearing sperm with the (X-bearing) egg produces a female baby. The combination of a Y-bearing sperm with the (X-bearing) egg produces a male baby. It might seem that the man (sperm) that determines the sex of the baby, but this assumes that the egg is passive, accepting the first sperm to arrive at the egg. Some recent evidence indicates that this is not so. See the Wikipedia article on "Maternal influence on sex determination.
How many different combinations of sperms are possible in a human male?
There are only two possible combinations of sperm that a male can produce. A single sperm will either be X bearing or Y bearing. If an X sperm splits one egg, the result will be female. If a Y sperm splits the egg, the result will be male.
What does the female egg do?
The purpose of the female egg is to reproduce. If a sperm joins an egg, a baby results.
Do pillbugs lay eggs?
No, pillbugs do not lay eggs. They are live-bearing organisms, which means that the female carries fertilized eggs in a pouch on her underside until they hatch into small pillbugs.
What kind of egg does a female produce?
the female gamete, the egg or ovum
What is the female egg cell of the flower?
The female egg cell is the stamen.
What is the name of the human female gamete?
ovum
What is egg and what is ovum?
egg is a female egg,which is the same as ovum.
What is an egg in science?
An egg is a female gamete.
What are the signs when the fish is about to lay eggs?
This will depend on what type of fish you purchased.Most fish are egg bearing and unless there is a male to fertilize the eggs, then the female will either re-absorb the eggs, or release unfertilized eggs that will be eaten (such as a goldfish).If you purchased a molly or a guppy for example, those are live bearing fish and it's not uncommon to buy a female that is already pregnant.
What is an egg and where is it?
An egg is produced by an overy.An egg is an unfertilized female gamete.
What is the of shedding of a ripe egg from the female's gonad?
ovulation the shedding of a ripen egg from the female gonad.
