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Twins formed by the fertilization of two ova by two sperm are?
They would be fraternal twins. Identical twins are created when one sperm fertilized one egg, and hat egg then splits in two. Identical twins are always the same gender, while fraternal twins can be either gender, or a mix of the two.
Why is it important that only one sperm fertilize an egg?
It is important that only one sperm fertilizes an egg to ensure the correct number of chromosomes in the resulting embryo. If multiple sperm were to fertilize the egg, it would lead to an abnormal number of chromosomes, resulting in genetic disorders and potential miscarriage.
Do twins get an extra chromosome from 1 parent?
No. Having an extra chromosome is actually a genetic defect. With twins, let's assume they are identical twins, the mother has one egg cell in the fallopian tube ready to be fertilized by a sperm cell. The sperm cell fertilizes the egg cell, but that egg cell then undergoes mitosis. All of the cell contents are duplicated and the cell divides into two. You now have 2 cells with the exact DNA which are twins. In the case of fraternal twins, the mother had two separate ova in her fallopian tubes and both were fertilized by two different sperm cells.
What are egg and sperm cells called?
They are called sex cells, or to be more scientific, gametes.
What do bioligists call female germ cells or egg cells?
Gametes, also known as sex cells or reproductive cells. In animals, these are the sperm and ova, in plants the pollen and ovules. In asexual reproduction, known as agamogenesis, reproduction is generally by mitosis, or division.
Twins formed by the fertilization of two ova by two sperm are?
They would be fraternal twins. Identical twins are created when one sperm fertilized one egg, and hat egg then splits in two. Identical twins are always the same gender, while fraternal twins can be either gender, or a mix of the two.
Why is it important that only one sperm fertilize an egg?
It is important that only one sperm fertilizes an egg to ensure the correct number of chromosomes in the resulting embryo. If multiple sperm were to fertilize the egg, it would lead to an abnormal number of chromosomes, resulting in genetic disorders and potential miscarriage.
Why do some twins look different?
Fraternal twins occur when two fertilized eggs are implanted in the uterine wall at the same time. When two eggs are independently fertilized by two different sperm cells, DZ twins result. The two eggs, or ova, form two zygotes, hence the terms zygotic and biovular.Identical twins occur when an egg splits into two; which makes them identical. Identical twins are not hereditary like fraternal twins can be. It is complete coincidence.
Do twins get an extra chromosome from 1 parent?
No. Having an extra chromosome is actually a genetic defect. With twins, let's assume they are identical twins, the mother has one egg cell in the fallopian tube ready to be fertilized by a sperm cell. The sperm cell fertilizes the egg cell, but that egg cell then undergoes mitosis. All of the cell contents are duplicated and the cell divides into two. You now have 2 cells with the exact DNA which are twins. In the case of fraternal twins, the mother had two separate ova in her fallopian tubes and both were fertilized by two different sperm cells.
What is the difference between dizygotic twins and monozygotic twins?
Dizygotic twins develop from two separate ova fertilized by different sperm at roughly the same time, they are also called fraternal twins. Monozygotic twins develop from one zygote that splits apart producing genetically identical zygotes; also called identical twins.
What are twins that dont look alike caled?
Fraternal. They develop from separate ova and are not genetically identical, so look different, can have different sex etc. Unlike "identical twins."
What types of cells have n chromosomes?
Haploid cells like sperm cells,ova,bacteria
Which type of cells contain a haploid number of chromosomes?
gametes (sperm or ova) are haploid cells
What are egg and sperm cells called?
They are called sex cells, or to be more scientific, gametes.
What are ova and sperm called?
sex cells | gametes ; scientific name ovum, plural ova and sperm is spermatozoa, plural spermatozoon.
What are the chances of twins in test tube babies?
yes...fraternal twins (different ova and different sperm). although it is also possible to generate identical twins I suppose (single ovum and single sperm). I have no idea what the statistics on this are however. Although if you're *really* asking "can I *force* a fertilized ovum to split into two and generate a set of identical twins?" then I would have to say "Not likely". Yes, an ovum can be forced to split. The above information is outdated.
What are maternal twins?
Actually, It's Fraternal and not faternal. They even have spell-check on this site to make sure you don't make a mistake and you made a mistake correcting the former idiot!............Idiot!!!!!!!!!
