what is it called when two gametes come together?
7787
Fertilisation is the fusion of the nucleus of a male gamete with the nucleus of a female gamete. ... When the two gametes combine, they merge the two sets of chromosome to have 46, which are referred to as diploid. This produces a new cell called a zygote, which will mature into an embryo.
343122
A specialized form of cell division that occurs to form eggs and sperm (or gametes). A stage in reproduction whereby an egg and a sperm fuse to create a single cell, called a zygote. A single cell formed through fertilization.
1140308
The male and female gametes fuse to form the zygote. Due to the fusion of gametes the product of sexual reproduction generally generates new genetic combinations leading to variations. The organism develops from the zygote which has characters of both the parents.
118987
Two gametes in each pair of cells produced by meiosis are not identical because recombination of alleles (genes) present on two homologous chromosomes occurs during meiosis.
1044281
An organism whose somatic cells are tetraploid (four sets of chromosomes), for example, will produce gametes by meiosis that contain two sets of chromosomes. These gametes might still be called haploid even though they are numerically diploid.
777737
Gamete refers to a haploid sex cell that is a sperm in males and egg (oocyte) in females. Zygote is the diploid cell that results from the fertilization between an egg and a sperm. In mammals, the sperm (male gamete) fertilizes the egg (ovum, the female gamete) and the fertilized egg is called a zygote.
1392378
Because the number of chromosomes is halved during meiosis, gametes can fuse (i.e. fertilization) to form a diploid zygote that contains two copies of each chromosome, one from each parent. ... Meiosis produces haploid gametes (ova or sperm) that contain one set of 23 chromosomes.
666772
When pollen grains reach the stigma of a flower's female structures, a pollen grain containing two sperm makes its way into the ovary. One sperm fertilizes one egg, which becomes a diploid zygote. The other sperm fuses with polar nuclei to form endosperm that will nourish the zygote as it matures into a seed.
552201
In humans, gametes are haploid cells that contain 23 chromosomes, each of which a one of a chromosome pair that exists in diplod cells. ... Haploid gametes are produced during meiosis, which is a type of cell division that reduces the number of chromosomes in a parent diploid cell by half.
28537
1: The Law of Segregation states that alleles segregate randomly into gametes: When gametes are formed, each allele of one parent segregates randomly into the gametes, such that half of the parent's gametes carry each allele.
824710
Lesson Summary Meiosis is a type of cell division that produces gametes, which we commonly call the sperm and egg. The steps of meiosis can be remembered using the mnemonic PMAT, which stands for prophase, metaphase, anaphase and telophase.
504746
Sexual reproduction requires two parents (male and female) to participate in the process. Gametes are formed by reductional division; thus, they contain only half the number of chromosomes from that of the parent. It involves the fusion of gametes during fertilisation that leads to zygote formation.
1251501
If homologous chromosomes fail to separate during meiosis I, the result is two gametes that lack that chromosome and two gametes with two copies of the chromosome. ... Nondisjunction occurs when homologous chromosomes (meiosis I) or sister chromatids (meiosis II) fail to separate during meiosis.
652673
Meiosis is where a diploid cell gives rise to haploid cells, and fertilization is where two haploid cells (gametes) fuse to form a diploid zygote.
397503
Gametes are an organism's reproductive cells. They are also referred to as sex cells. Female gametes are called ova or egg cells, and male gametes are called sperm. Gametes are haploid cells, and each cell carries only one copy of each chromosome. ... In contrast, each egg cell, or ovum, is relatively large and non-motile.
882537
Double fertilisation is an event which is unique to flowering plants (Angiosperms). In double fertilization two sperm cells fertilize cells in the ovary. This process begins when a pollen grain adheres to the stigma of the pistil (female reproductive structure), germinates, and grows a long pollen tube.
933655
A cross between two organisms involving two genes is called a dihybrid cross. A greater number of gamete types (four) is produced when two genes are considered. Note the genes described are carried on separate chromosomes, the genes are unlinked, and will therefore sort independently of each other during meiosis.