The Fallopian tubes are a pair of long narrow tubes connecting the ovaries to the uterus. Egg cells are passed to the uterus through the fallopian tubes .The egg may also be fertilized while in the Fallopian tubes if sperm is present following sexual intercourse. The vagina is an elastic muscular tube with a soft, flexible lining that provides sensation. The vagina attaches the uterus to the outside world. The vagina takes the penis during sexual intercourse and also aids as a tube for menstrual flow from the uterus.
For insertion of sperm (in semen) with the female to produce offspring, so continues the cycle of human life. * Prostate- The function of the prostate gland is to secrete proteins and hormones that are added to the ejaculatory fluid produced by the seminal
2. Where does fertilization take place? Fertilization takes place where the sperm meet up with the egg in one of the fallopian tubes. 3. At what stage of fetal development does implantation take place?
A couple examples include human growth hormone and follicle stimulating hormone. Human growth hormone regulates the growth and metabolism of the body. Follicle stimulating hormone stimulates the production of sperm in the body. b. Identify the following.
Sexually reproducing organisms have two sets of genes for every trait (called alleles). Offspring inherit one allele for each trait from each parent, thereby ensuring that offspring have a combination of the parents' genes. Having two copies of every gene, only one of which is expressed, allows deleterious alleles to be masked, an advantage believed to have led to the evolutionary development of
The presentation then explains the inside of the male and female reproductive system and how both are different from each other. I.e. Male sperm are more on the quantity than quality while female eggs value quality. The union of the two sets of chromosome from the male and female allows a merger of new unique sets of traits. This makes up for the individuality and uniqueness of a person which is quite different from “clones.” We are not the exact replica of our parents.
1. Outline the most important functions of the cells. Cells have a number of important functions & these are as follows: They carry out growth & repair, the cell absorbs nourishment, it is capable of reproduction by dividing, it carries out excretion of waste products. Some specialist cells also have the power of movement. Cells are also capable of communication (hormones from endocrine gland cells & neurotransmitters from nerve cells binding to receptors) & defence (proteins – antibodies, bind to harmful substances – antigens & carry out actions to make them harmless.
Therefore the purpose of meiosis is to produce gametes; the sperm and eggs. 3. In what ways is meiosis different from mitosis? Be thorough. Comparison chart | Meiosis | Mitosis | Definition: | A type of cellular reproduction in which the number of chromosomes are reduced by half through the separation of homologous chromosomes in a diploid cell.
11.4.1 Annotate a light micrograph of testis tissue to show the location and function of interstitial cells (Leydig cells), germline epithelium cells, developing spermatozoa and Sertoli cells Testis Tissue * The testes are composed of seminiferous tubules which produce sperm * Each tubule is surrounded by a basement membrane which is lined by germline epithelium cells * The germline epithelium will divide by mitosis to make spermatogonia (which divide by meiosis to make spermatozoa) * The developing spermatozoa are nourished by Sertoli cells * Outside of the tubules are blood capillaries and interstitial cells (Leydig cells), which produce the male sex hormone, testosterone 11.4.2 Outline the processes involved in spermatogenesis within the
There are many who view embryonic stem cell research as a procedure with many benefits. There are also many who view it as a procedure that is ethically wrong. Despite the promises cloning can provide, opponents view the procedure as morally wrong on ideological grounds while supporters hope that embryonic stem cell research can provide cures for numerous diseases and afflictions. To understand more of the controversy that surrounds embryonic stem cell research, readers must understand the differences and similarities of the two different type of cloning: therapeutic cloning and reproductive cloning. “Therapeutic cloning creates human embryos through cloning in order to harvest their stem cells for medical research; reproductive cloning creates the embryos for human reproduction”.