What is the Female Gamete? Upon the incidence of sexual reproduction, the process of fertilization takes place, which involves the fusion of cells referred to as gametes; the male and female gametes fuse to produce a single-celled structure known as the zygote. Gametes are characterized by the...
What are the general purposes of mitosis and meiosis? How are the cells produced different in terms of chromosome number and general function? Who determines the gender of an offspring: the mother or the father? What is the main reason?
1.Gametangium (pl. gametangia) A cell or organ in which sexual cells (gametes) are produced. 1.囊(偶囊):由细胞()产生的细胞或器官。 2.Antherozoid (spermatozoid) The male gamete of algae, some gymnosperms, and the non-seed-bearing plants. 2.藻类,某些裸植物和没有种形成的植物中的雄...
In sexual reproduction, what is the general name for two cells that fuse together to create a 2n cell? a) gametes b) zygotes c) haploids d) spermatogonia What transports a secondary oocyte to the uterus and normally are the sites where fertilization occurs? Which part of the reproductive s...
Question: Do somatic cells make gametes? Sperm and egg: Gametes or gametic cells are sperm cells in men and egg cells, or ovum, in women. The sperm is the smallest cell in the human body. The ovum is the largest cell found in the human body. ...
Gametes are an organism's reproductive cells and have also been referred to as "sex cells." Male gametes are called sperm; in females, they are called "ova" or egg cells. Gametes are haploid cells, which means that each cell carries one copy of each chro
cells of hematopoietic system. By E13.5, PGCs within the genital ridge cease dividing; those in the female enter meiosis and those in the male undergo mitotic arrest. By E15.5, oogonia are formed in females whereas in males they are termed gonocytes. At birth, the gonocytes undergo ...
Reactive oxygen species are generated in cells during normal metabolism. SOD converts O2 into H2O2, which is subsequently degraded to H2O by GPx. Trx has H2O2 reducing activity as well as a function in refolding oxidized proteins. Trx seems to alleviate the oxidative stress related to two-cell...
What Is A Diploid Cell? By Regina Bailey A cell goes through multiple stages twice as it progresses through both divisions of meiosis:prophase, metaphase, anaphase, and telophase. At the end of meiosis I, the parent cell splits into two daughter cells.Homologous chromosomepairs containing the ...
One cell line (ES-76) has also been found to be positive for SSEA-4 and negative for SSEA-1, both indicating that the cells are from an undifferentiated human ESC line (13). Human chorionic gonadotropin secretion, an indication of trophoblast differentiation, was present in the culture ...