What would happen if gametes were made by mitosis instead of meiosis? Explanation: … If gametes were produced instead by mitosis each gamete would be diploid not haploid. During fertilization of diploid gametes, the zygote would become 4n=92.
What would happen if gametes egg and sperm were produced by mitosis rather than meiosis *?
If gametes (sperm and egg) were made by mitosis, then they would be diploid. If a diploid sperm fused with a diploid egg, then the resulting zygote would be tetraploid (46 pairs of chromosomes, or 92 chromosomes total). A tetraploid zygote is not viable and will most likely miscarriage.
What would happen if a gamete did not complete meiosis?
When a sperm fertilizes an egg, the union leads to a baby with 46 chromosomes. But if meiosis doesn’t happen normally, a baby may have an extra chromosome (trisomy), or have a missing chromosome (monosomy). These problems can cause pregnancy loss.
What would happen if mitosis and meiosis did not occur?
Mitosis and meiosis are both crucial to life. Without meiosis, organisms would not be able to reproduce effectively. If organisms did not undergo mitosis, then they would not be able to grow and replace worn-out cells. They are two of the most important cellular process in existence.
Are gametes cells made by mitosis or meiosis?
Gametes are haploid cells, and each cell carries only one copy of each chromosome. These reproductive cells are produced through a type of cell division called meiosis.
What would happen if mitosis produce gametes?
If gametes were produced instead by mitosis each gamete would be diploid not haploid. During fertilization of diploid gametes, the zygote would become 4n=92. With each new generation the number of chromosomes would double.
Why do we not use mitosis to make gametes?
Gametes are produced by mitosis (not meiosis) and after fertilization a diploid zygote is created. The single zygote cell never grows or divides my mitosis. It can only divide by meiosis to produce haploid cells once more, which then produce the main adult body.
What type of gametes can be produced if non disjunction occurs at anaphase I of cell division?
Nondisjunction Produces Abnormal Gametes
If nondisjunction occurs during anaphase I of meiosis I, this means that at least one pair of homologous chromosomes did not separate. The end result is two cells that have an extra copy of one chromosome and two cells that are missing that chromosome.
What is one of the very important differences between mitosis and meiosis?
Most important difference is that Mitosis results in 2 daughter cells with same number of chromosomes( Takes place in somatic cells) whereas Meiosis is a reduction division where the chromosome number is halved in the daughter cells (takes place in reproductive cells).
Does meiosis occur in gamete cells?
Meiosis only occurs in reproductive cells, as the goal is to create haploid gametes that will be used in fertilization. Meiosis is important to, but not the same as, sexual reproduction. Meiosis is necessary for sexual reproduction to occur, as it results in the formation of gametes (sperm and eggs).
What type of cells do not undergo mitosis gametes?
As previously mentioned, most eukaryotic cells that are not involved in the production of gametes undergo mitosis. These cells, known as somatic cells, are important to the survival of eukaryotic organisms, and it is essential that somatic parent and daughter cells do not vary from one another.
What will happen when gametes are united?
During sexual reproduction, a male and female gamete will merge together to form a new organism. The two haploid cells will fuse together to form a diploid cell called a zygote. … In some animals, the fusion or fertilization happens inside the body of the female.
How do cells in meiosis differ from the cells in mitosis?
Mitosis creates two identical daughter cells that each contain the same number of chromosomes as their parent cell. In contrast, meiosis gives rise to four unique daughter cells, each of which has half the number of chromosomes as the parent cell.
Why is it necessary for gametes to be haploid cells?
Why is it important that gametes are haploid cells? It is important that chromosomes are haploids, because when the sperm and the egg fuse together the cell will have 46 chromosomes. … Polar bodies are haploid cells produced during meiosis, which are smaller in size compared to the gamete and will disintegrate.