Definition & Betydelse | Engelska ordet ZYGOTE

Definition av ZYGOTE

1. zygot

Exempel på hur man kan använda ZYGOTE i en mening

• In plants and animals, an embryo develops from a zygote, the single cell that results when an egg and sperm fuse during fertilization.
• It develops sex organs that produce gametes, haploid sex cells that participate in fertilization to form a diploid zygote which has a double set of chromosomes.
• It begins when a fertilized zygote implants in the female's uterus, and ends once it leaves the uterus.
• During sexual reproduction, a male and a female gamete fuse to form a zygote, which develops into an offspring that inherits traits from each parent.
• A spermatozoon is a moving form of the haploid cell that is the male gamete that joins with an ovum to form a zygote.
• The sexual fusion of haploid cells is called karyogamy, the result of which is the formation of a diploid cell called the zygote or zygospore.
• The resulting fusion of these two cells produces a single-celled zygote that undergoes many cell divisions that produce cells known as blastomeres.
• Fertilisation or fertilization (see spelling differences), also known as generative fertilisation, syngamy and impregnation, is the fusion of gametes to give rise to a zygote and initiate its development into a new individual organism or offspring.
• Twins can be either monozygotic ('identical'), meaning that they develop from one zygote, which splits and forms two embryos, or dizygotic ('non-identical' or 'fraternal'), meaning that each twin develops from a separate egg and each egg is fertilized by its own sperm cell.
• The resulting zygote develops through mitosis and cell differentiation, and the resulting embryo then implants in the uterus, where the embryo continues development through a fetal stage until birth.
• These eggs will either be fertilized by spermatozoa to become a zygote, or will degenerate in the body.
• Human sex is determined at fertilization when the genetic sex of the zygote is determined by whether the sperm cell contains an X or Y chromosome.
• In mammals, somatic cells make up all the internal organs, skin, bones, blood and connective tissue, while mammalian germ cells give rise to spermatozoa and ova which fuse during fertilization to produce a cell called a zygote, which divides and differentiates into the cells of an embryo.
• Embryonic development begins with a sperm fertilizing an egg cell to become a zygote, which undergoes many cleavages to develop into a ball of cells called a morula.
• The sporophyte develops from the zygote produced when a haploid egg cell is fertilized by a haploid sperm and each sporophyte cell therefore has a double set of chromosomes, one set from each parent.
• The resulting zygote develops into a ciliated larva that escapes from the mother to seek out new hosts.
• An egg is an organic vessel grown by an animal to carry a possibly fertilized egg cell (a zygote) and to incubate from it an embryo within the egg until the embryo has become an animal fetus that can survive on its own, at which point the animal hatches.
• Homozygosity, with homo relating to same while zygous pertains to a zygote, is seen when a combination of either two dominant or two recessive alleles code for the same trait.
• During early embryonic development (cleavage of the zygote to form a morula and blastoderm), cell divisions occur repeatedly without cell growth.
• The zygote will then divide over enough generations of cells to form a blastocyst, which implants itself in the wall of the uterus.

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