Question: Question 1 What would be the result of fertilization if egg and sperm were produced by mitosis rather than meiosis? The resulting offspring would have twice as much DNA as the parents. … The resulting offspring would have half the amount of DNA as the parents.
What would be the result of fertilization is egg and sperm are produced by mitosis rather than meiosis?
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.
Are eggs and sperm produced by mitosis or meiosis?
Meiosis is the type of cell division that creates egg and sperm cells. Mitosis is a fundamental process for life. During mitosis, a cell duplicates all of its contents, including its chromosomes, and splits to form two identical daughter cells.
Is the fertilization of an egg by a sperm mitosis?
Whereas somatic cells undergo mitosis to proliferate, the germ cells undergo meiosis to produce haploid gametes (the sperm and the egg). …
Why can’t we just make our eggs and sperm with mitosis?
The zygote undergoes mitosis to begin development of the human embryo which eventually becomes a baby. Why can’t your body use mitosis to make sperm or eggs? To produce the needed number of chromosomes in sperm and eggs, meiosis reduces the number of chromosomes by half.
What happens during fertilization?
Fertilization happens when a sperm cell successfully meets an egg cell in the fallopian tube. Once fertilization takes place, this newly fertilized cell is called a zygote. From here, the zygote will move down the fallopian tube and into the uterus. The zygote then burrows into the uterus lining.
What would happen if sperm and egg cells were accidentally diploid?
explain what would happen if sperm and egg cells were accidentally diploid. If the gametes were not haploid, then the fertilized zygote would have four sets of chromosomes and would probablydie before birth.
Does meiosis happen after fertilization?
Meiosis occurs before fertilization, since it’s the process that makes the cells that fertilize.
How eggs and sperm are produced through meiosis?
During meiosis, a diploid parent cell, which has two copies of each chromosome, undergoes one round of DNA replication followed by two separate cycles of nuclear division to produce four haploid cells. These cells develop into sperm or ova. … In contrast, each egg cell, or ovum, is relatively large and non-motile.
Why are eggs and sperms produced by meiosis?
Meiosis is a type of cell division that reduces the number of chromosomes in the parent cell by half and produces four gamete cells. This process is required to produce egg and sperm cells for sexual reproduction. … Meiosis begins following one round of DNA replication in cells in the male or female sex organs.
What happens from fertilization to implantation?
During fertilization, the sperm and egg unite in one of the fallopian tubes to form a zygote. Then the zygote travels down the fallopian tube, where it becomes a morula. Once it reaches the uterus, the morula becomes a blastocyst. The blastocyst then burrows into the uterine lining — a process called implantation.
What is fertilization and what is the fertilized ovum called?
In fertilization, male and female sex cells fuse to form a single cell called a zygote. The first is external fertilization ( the eggs are fertilized outside of the body), and the second is interna l fertilization ( the eggs are fertilized inside the female reproductive tract). Fertilized ovum is called ZYGOTE.
What will happen after fertilization?
Once fertilized, the egg travels down the fallopian tube toward the womb, or uterus, where it will implant in the uterine wall. Doctors refer to the fertilized egg as an embryo after implantation. Beginning in the ninth week of pregnancy, and until the pregnancy ends, doctors call the developing baby a fetus.
Does mitosis occur after fertilization?
The fertilized cell is a zygote. The zygote undergoes mitosis to form two identical cells that remain attached. This takes place about 36 hours after fertilization. Mitosis then occurs more frequently.
What would happen if all your body cells divide using meiosis instead of mitosis?
Instead of mitosis, gametes reproduce through a process called meiosis. While mitosis results in new cells with the same number of chromosomes, meiosis causes new cells to have half the number of chromosomes. … If organisms did not undergo mitosis, then they would not be able to grow and replace worn-out cells.
How significant is mitosis and meiosis into plants and animals?
Mitosis and meiosis both involve cells dividing to make new cells. This makes them both vital processes for the existence of living things that reproduce sexually. Meiosis makes the cells needed for sexual reproduction to occur, and mitosis replicates non-sex cells needed for growth and development.