• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

In Vitro Fertilization

Extracts from this document...

Introduction

In Vitro Fertilization In vitro fertilisation (IVF) is a technique in which egg cells are fertilised by sperm outside the woman's womb. IVF is a major treatment in infertility when other methods of achieving conception have failed. The process involves hormonally controlling the ovulatory process, removing ova (eggs) from the woman's ovaries and letting sperm fertilise them in a fluid medium. The fertilised egg (zygote) is then transferred to the patient's uterus with the intent to establish a successful pregnancy. The success rate of IVF treatment depends on a number of levels including patient characteristics and treatment which makes a contact. It is also important to know that pregnancy rates do not consider to live birth rates. But the rates that it can become success are shown below with their ages. ==> 30 to 35% for women under age 35 ==> 25% for women ages 35 to 37 ==> 15 to 20% for women ages 38 to 40 ==> 6 to 10% for women ages over 40 Advantages ==> Helps couple to give birth to a child naturally. ...read more.

Middle

Certain ethical issues have been raised from the beginning when IVF was introduced. These concerns include bypassing the natural method of conception, challenging the creation of life in the laboratory, fertilization of more embryos than will be needed, discarding of excess embryos, unnatural environment for embryos, use of untested technology, not affordable for many, misallocation of medical resources, creation of embryos, then freezing them, and keeping them "in limbo", exposure of embryos to unnatural substances, destruction of embryos in research, potential to create embryos for medical purposes, potential to select embryos (PGD), Potential to modify embryos, facilitation of the idea that embryos are commodities, financial rewards for IVF doctors dissuade them from recommending other methods to couples, Infertility is treated as a disease and not as a symptom of underlying medical problems. The Roman Catholic Church is opposed to in vitro fertilization in all instances and advocates that infertility is a call from God to adopt children. ...read more.

Conclusion

or inbreeding (mating closely related individuals), to facilitate the weeding-out of undesired characteristics and the fixation of desired traits. Inbreeding and line breeding are controversial aspects of artificial selection, but have been practiced for centuries. Advantages ==> You can make pure breeds of animal again, as they are not commonly come across by now days ==> Guarantees good quality meat and milk from one cow. ==> Helps hens to lay more eggs when selectively bred Disadvantages ==> Genetic deformities ( means the animal you selectively breaded might be affected with any diseases) ==> Chicken are bred to grow their muscle faster, but their other parts like legs are not being bred which unable them to walk at all. I think selective breeding is a good step taken by many scientist and it helps farmers to get much in profit, because it can get the characteristics they want e.g. they can develop the cow with good meat and produces good milk. Therefore, they get two good things in one character ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our GCSE Living Things in their Environment section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related GCSE Living Things in their Environment essays

  1. Marked by a teacher

    Research question - Is using dogs for work ethical?

    5 star(s)

    Another way I could have improved the experiment was by writing more examples of habituation and imprinting. An addition way of improving the experiment is to make the essay more interesting, it would have been more appealing to read if there were interesting facts about dogs.

  2. Evolution, Natural selection and Darwinism

    Stabilizing Selection occurs in all populations and tends to eliminate the extremes within the group, thus reducing the viability of a population and the opportunity for an evolution. 2. Directional selection shifts the frequency curve for variations in some phenotypic character in one direction or the other by favouring what

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work