Gamete

1 Hypothalamus – a small region of the brain that is a major link between the nervous and endocrine system. The hypothalamus controls the autonomic nervous system and regulates body temperature, hunger, thirst, fear, rage, and sexual behavior. The hypothalamus control feeling such as pain, stress, and emotional experiences. (1) 2 Pituitary gland – the “master endocrine gland” because it secretes many hormones that control other endocrine glands. It is a “pea-shaped structure that attaches to…

Approximately 3,000 abortions take place every day in the United States (Snyder). Those abortions add up to more than one million abortions per year. For years, people from all over the world have fought back and forth in the abortion debate. The pro-life side of the debate argues that abortion should not be legal. They also argue that abortion denies the right-to-life of the baby, and threatens both the mental and physical health of the mother. This side of the debate comes from many different…

two types of reproduction, meiosis and mitosis. Meiosis is what most of us think about when considering reproduction, it is the process of sexual reproduction. There are several stages of meiosis, all with the cumulative goal of creating haploid gametes from the diploid cells. In laymen terms, the genetic material from the egg and sperm are combined to create daughter cells with a complete complement of chromosomes. The first stage of meiosis is called Interphase. This is when the chromosomes…

Function; The ovaries produce gametes and female sex hormones (progesterone and estrogens), also inhibin and relaxin. 16. Describe the principal events of oogenesis. Oogenesis is the production of an ovum (egg) and it occurs in the ovaries. Oogenesis starts with the primary oocytes formation…

The issue of surrogacy and birth technologies with family law brings up a myriad of legal implications. Technology has and will continue to expand and evolve at an accelerated rate. Laws governing the use of such technologies are failing in some areas and the law fails to keep up with the rapid changes in society and technology. This is because the surrogate mother has exclusive custody rights; she cannot be forced to give up the child and also has a period of reconsideration of initial…

save the life of another. In post mortem sperm retrieval, it is using an organ to create a new life. It is just not part of our culture, it does not follow that natural or ordinary way of creating life. It is actually disturbing to think that our gametes will be used to create another viable human being after our…

Genetic engineering is a process by which genomes are modified. This process is done by cloning. The genetically modified organism that carries a gene from a different species, called transgenic. Genetic engineering can also be referred to as cross-breeding or gene-swapping. In 1953, Francis Crick and James Watson discovered the structure for the chemical molecule, Deoxyribonucleic acid. DNA is a substance that carries genetic information in the cells of plants and animals, and occurs in the…

recombination or sexual reproduction processes, usually inserting new genes from entirely different organisms, such as using the genes of certain bacteria and inserting it into the genome of a plant by taking the new genes and placing them inside the gametes to make it grow faster or produce more protein in foods, the new plant would then pass that gene down to its offspring. In humans the process of modifying DNA is slightly different and there are many Nick 2 ways to inject genes into the…

Aldous Huxley was born on July 26, 1894 in England. He was born in an illustrious family. His grandfather was the famous Victorian scientist, Thomas Henry Huxley who was the disciple of Darwin. Because of his family background Aldous Huxley was interested in a variety of subjects. His novels are Time Must Have a Stop, After Many Summer, Ape and Essence and The Genius and the Goddess. Characters in the Brave New World a. John: the savage is the hero of the novel. He acts as a bridge between the…

Flowers, produce by the sporophyte, function in sexual reproduction The four floral organs are sepals, petals, stamens, and carpel. Sepals protect the floral bud. Petals help attract pollinators. Stamens bear anthers in which haploid microspores develop into pollen grains containing male gametophytes. Carpel contains ovules (immature seeds) in their swollen bases. Within the ovules, embryos sacs (female’s gametophytes) develop from megaspore. Pollination which precedes fertilization is the…