0
What is the number of chromosomes in the zygote if the parent's reproductive cells or gametes contain 12 chromosomes each?
Wiki User
∙ 9y ago
It will be 24 in the zygote since zygote is diploid cell and gametes are haploid.
Wiki User
∙ 9y ago
Add your answer:
Earn +20 pts
Why cant mitosis provide for the sexual reproduction of offspring that contain the same number of chromosomes as the parents?
Meiosis works to produce gametes, not mitosis.
Why do gametes have half the number of chromosomes as somatic cells?
Since you need 46 chromosomes total to function properly, and each of your parents have 46 chromosomes, you need to get 23 chromosomes from each of your parents in order to have the correct number of 46 chromosomes. You get 22 somatic chromosomes (autosomes) and 1 sex chromosome from each parent. Of course, during oogenesis or spermatogenesis, there could be nondisjunction, resulting in you receiving more or less chromosomes than you should. An example of this is Down Syndrome, where you receive an extra copy of Chromosome 21 from either parent. However, generally you will only receive 23 chromosomes from each parent (through their gametes) so that when they combine, you will have the correct 46 chromosomes. That is why gametes (haploid) have half the number of chromosomes as somatic cells (diploid).
Why is it important that gametes contain only half of the number of chromosomes present in body cells?
Body cells have the full number of chromosomes because they reproduce by binary fission. They grow, then divide into two halves. Each of these must have the same number of chromosomes as the original. Gametes however, sperm and eggs have one half becsaue upon fertilization they combine to form the full amount of chromosomes. If they both had the full amount the fertilization would result in double the amount of chromosomes necessary
How does meiosis contribute to genetic recombination?
Meiosis is involved in sexual reproduction. It produces gametes (eg. sperm and ovum/egg) which contain half the number of chromosomes of a normal (somatic/non-sex) cell. This means that in order to produce a new organism the gametes from the two different parents must combine. This results in an organism with a combination of the parents' genes (half the chromosomes from one parent, and half from the other). The organism is therefore different to both parents.
How is the equal genetic contribution of male and female parents ensured in the progeny?
Human cells have 46 chromosomes, except gametes (eggs and sperm), which have 23. A human offspring has 23 chromosomes from the father and 23 from the mother.
What do Reproductive cells contain half the number of?
Reproductive cells, also known as gametes, contain half the number of chromosomes compared to other cells in the body. This is because during sexual reproduction, gametes from two parents combine to form a new individual with a complete set of chromosomes. In humans, for example, gametes contain 23 chromosomes each, while most other cells in the body have 46 chromosomes.
What are haploid cells that contain chromosomes that are passed on to you from your parents called?
Gametes are the haploid cells which fuse together at fertilisation to form a zygote. One gamete is passed from your father, the other from your mother.
What does the fertilized egg contain from both parents?
chromosomes
Where do you get chromosomes from?
The chromosomes in a karyotype are from a sample of body cells.
How is genetics material combined between two parents?
During sexual reproduction male and female gametes are formed in the respective reproductive organs. The gametes are haploid having half the number of chromosomes found in the parent body cells. These chromosomes have the genetic material in the form of DNA. When a male gamete unites with a female gamete during fertilization, the chromosomes in the zygote get doubled. The homologous chromosomes get paired at the time of meiosis in these offsprings and get combined by crossing over.
What are the number of gametes made in males?
Gametes are cells that each have half of the normal chromosomes of the individual they belong to. The reason for this is that during reproduction, the chromosomes in each of the gametes add together to create a full set of chromosomes. Each half a set of chromosomes comes from a different person, which is why sexual reproduction produces offspring with mixed and different traits than their parents. The gametes in males are sperm, and the gametes in females are ova(egg cells). I hope this helped out ;)
Why does the formation of gametes involve meiosis?
Meiosis is the process of making a cell that has the same number of chromosomes as the parents. In order to keep the same number, they each make gametes which have half their own number of chromosomes. When one gamete, sperm, fertilizes the other gamete, the egg, they join their number of chromosomes together to make an offspring with the same number as the parents have. If they did not do this by meiosis, then very soon, we would have animals which huge numbers of chromosomes.
Why cant mitosis provide for the sexual reproduction of offspring that contain the same number of chromosomes as the parents?
Meiosis works to produce gametes, not mitosis.
Why do gametes have half the number of chromosomes as somatic cells?
Since you need 46 chromosomes total to function properly, and each of your parents have 46 chromosomes, you need to get 23 chromosomes from each of your parents in order to have the correct number of 46 chromosomes. You get 22 somatic chromosomes (autosomes) and 1 sex chromosome from each parent. Of course, during oogenesis or spermatogenesis, there could be nondisjunction, resulting in you receiving more or less chromosomes than you should. An example of this is Down Syndrome, where you receive an extra copy of Chromosome 21 from either parent. However, generally you will only receive 23 chromosomes from each parent (through their gametes) so that when they combine, you will have the correct 46 chromosomes. That is why gametes (haploid) have half the number of chromosomes as somatic cells (diploid).
How is genetic information is passed from parents to offspring?
The traits are passed on through gametes, in which the males sperm carries, and the females eggs are carried. Each only contains one of each chromotids which decides your traits depending on the matches the chromosomes make.
Why is it important that gametes contain only half of the number of chromosomes present in body cells?
Body cells have the full number of chromosomes because they reproduce by binary fission. They grow, then divide into two halves. Each of these must have the same number of chromosomes as the original. Gametes however, sperm and eggs have one half becsaue upon fertilization they combine to form the full amount of chromosomes. If they both had the full amount the fertilization would result in double the amount of chromosomes necessary
What do gametes contain that help with heredity?
DNA of the parents! Heredity means it is passed on through the biological family.
