StudentShare
Contact Us
Sign In / Sign Up for FREE
Search
Go to advanced search...
Free

Contribution of Meiosis to Human Genetic Diversity - Essay Example

Cite this document
Summary
In the paper “Contribution of Meiosis to Human Genetic Diversity,” the author discusses reproduction as the ability that only living beings have. Generally, descendants have similarities with their ancestors, especially immediate ones. The nucleus of the cell divides into four nuclei…
Download full paper File format: .doc, available for editing
GRAB THE BEST PAPER97.2% of users find it useful
Contribution of Meiosis to Human Genetic Diversity
Read Text Preview

Extract of sample "Contribution of Meiosis to Human Genetic Diversity"

Crossing over is the process that happens in the previous stage of prophase. In this process homologous chromosomes are paired together loosely along their length, resulting in the generation of point of contact which is used for the exchange of genetic information. This produces various combinations of maternal and paternal genes. The number of cross over events depends on the size of chromosomes and the position of their centromeres. In the case of humans, it is one to three on an average The following stages of Meiosis like Metaphase, further increase the chances of more diversified combinations because sister chromatids not being identical twins.

Fertilization is the process in which different gametes fuse together and form new organisms of the same spices. In humans it is a fusion of haploid sperm cell from the father and haploid ovum from the mother, resulting in the formation of the egg. Egg contains two haploid sets of chromosomes bearing genes of mother and father A zygote is produced during fertilization out of about 64 trillion (8 million) diploid possible combinations from the fusion of single male gamete with a single female gamete, Further stages of Meiosis, like prophase, Metaphase, Anaphase, and Telophase, adds further variations due to Independent assortment of chromosomes and crossing over as explained above.

Thus a resulting number of possible combinations is inconceivably large.Some times we think why brothers and sisters are so different in spite of having common parents. Considering the above mechanism, it can be concluded that two human beings can have an identical genome only if they are from the same fertilized egg.

Read More
Cite this document
  • APA
  • MLA
  • CHICAGO
(Contribution of Meiosis to Human Genetic Diversity Essay, n.d.)
Contribution of Meiosis to Human Genetic Diversity Essay. https://studentshare.org/biology/1503160-human-genetic-diversity
(Contribution of Meiosis to Human Genetic Diversity Essay)
Contribution of Meiosis to Human Genetic Diversity Essay. https://studentshare.org/biology/1503160-human-genetic-diversity.
“Contribution of Meiosis to Human Genetic Diversity Essay”. https://studentshare.org/biology/1503160-human-genetic-diversity.
  • Cited: 0 times

CHECK THESE SAMPLES OF Contribution of Meiosis to Human Genetic Diversity

How does meiosis contribute to human genetic diversity

How Does Meiosis Contribute to human genetic diversity Genetic variability among humans is essential for survival.... This genetic variability helps to cope up human beings to changing environment and therefore for evolution… There are three major sources of such variations, namely, the independent assortment of chromosomes during meiosis,reciprocal recombination of the linked genes on chromosomes by crossing over in prophase I of meiosis,and random fertilization of gametes, thereby raising possibility of innumerable combinations....
2 Pages (500 words) Essay

Biology science of duty

It poses environmental problems and causes an impact to human life due to different way of approach towards life.... Every living cell is composed of genetic material called DNA which carries chromosomal structure of an individual.... The main differentiating features among the two are as follows:Mitosis can be generally defined as formation of two daughter cells from one; it can be simply explained as differentiation of the genetic material into two cells....
5 Pages (1250 words) Essay

Comparing Meiosis and Mitosis

Plant diversity is the source of economy for the country because it provides many products like, timber, fruits, wood fuels, etc.... So damage in plant diversity can cause the downfall of economy.... Meiosis results in genetic variation.... This genetic variation takes place through chiasmata formation and crossing over.... In contrast in mitosis, no genetic variation is possible since there is no chiasmata formation or crossing over. 5....
4 Pages (1000 words) Essay

Roles of Estrogen in Development

Evidences have accumulated that exposure to environmental components with estrogenic activity causes reproductive disorders in human populations.... Despite the estrogens' significance on development, some studies apparently speak of its contribution to developmental errors....
5 Pages (1250 words) Essay

Major Issues in Parthenogenesis

Gametes are formed by meiosis, a special kind of cell division in the parent reproductive organs that both reassorts the genetic material and halves the chromosome number.... Meiosis thus ensures genetic variability in the gametes and therefore in the offspring resulting from their subsequent fusion.... On the other hand, asexual reproduction is "a form of organic reproduction in which the parent organism does not exchange genetic material with another organism of the same species" (Ashworth and Little, 2001)....
12 Pages (3000 words) Essay

Biomedicine pre study

Thus chromosomes of each parent undergo recombination in a homologous manner during the process of meiosis and thus each zygote inherits DNA from both parents (Kent, 2000).... DNA is a genetic material and is present in one or more chromosomes.... Each of the four haploid cells contains one complete set of chromosomes which is half of the genetic content of the original cell.... Inheritance mainly occurs due to meiosis....
4 Pages (1000 words) Essay

BIO100 Week 2-4 Discussions

List the ways mitosis and meiosis differ - list… I think using a table for comparison is very effective and it can help you better understand each process.... Mutations caused in specific genes results in the abnormal production of proteins which in turn causes the abnormal growth of cells. B....
3 Pages (750 words) Essay

Human Skeleton

This assignment "human Skeleton" focuses on a gene, the most important unit of heredity and affects the physical and functional aspects of a living organism, how meiosis and mitosis differ, calculate frequencies using H.... Proteins, enzymes and hormones are fundamentals in gene expressionTo begin with, meiosis occurs in gametes while mitosis occurs in somatic cells or rather a body cell.... Also, meiosis leads to the production of haploid cells while mitosis results in diploid cell production....
7 Pages (1750 words) Assignment
sponsored ads
We use cookies to create the best experience for you. Keep on browsing if you are OK with that, or find out how to manage cookies.
Contact Us