The Role of Epigenetics in Homosexuality Essay - 608 Words

TOP ESSAY WRITING SERVICES REVIEWS


Rank
Service
General
Prices

1
  • Since 2008
  • Free revisions
  • Money-back guaranty
  • Up to 5% for the first order. Up to 15% for the orders starting from 2nd

from $9.97/pp

visit site

2
  • Since 2009
  • Free title page, revisions
  • Discount policy
  • Satisfaction guarantee
  • More than 100 000 orders delivered

from $9.97/pp

visit site

3
  • Since 2010
  • PhD holding authors only
  • SMS notifications & VIP support
  • Discount policy

from $22/pp

visit site

4
  • Since 2010
  • 24/7 support team
  • More than 500 writers
  • Money-back guaranty
  • Up to 15% discounts

from $9.97/pp

visit site

 

StudyMode - Premium and Free Essays, Term Papers & Book Notes

Products

About

@2017 studym.wressy.com

Exclusive

  1. Home >
  2. Essays >
  3. The Role of Epigenetics in...

The Role of Epigenetics in Homosexuality

Only available on StudyMode Open Document Save to my library

Please sign up to read full document.

Text Preview The Role of Epigenetics in Homosexuality
The article I chose to review came from The Quarterly Review of Biology, Volume 87, No.4, pages 343-368, and is entitled, “Homosexuality as a Consequence of Epigenetically Canalized Sexual Development”, by William R. Rice, Urban Friberg, and Sergey Gavrilets. The common occurrence of homosexuality is perplexing from an evolutionary perspective. From an evolutionary standpoint, homosexuality is a trait that would not be expected to develop and persist in the face of natural selection. Simple logic suggests that a fitness-reducing phenotype should be selected against, but homosexuality is nonetheless quite common in human populations, accounting for approximately eight to ten percent of all people. Scientists have turned again and again to genetics, especially since homosexuality has been shown to run in families, leading researchers to presume a genetic underpinning of sexual preference. However, no gene has been found for homosexuality, despite the numerous studies searching for a genetic connection. Epigenetics – how gene expression is regulated by temporary switches, called epi-marks, appears to be a critical and overlooked factor contributing to the long-standing puzzle of why homosexuality occurs. According to the study, sex-specific epi-marks, which normally do not pass between generation and are thus “erased”, can lead to homosexuality when they escape erasure and are transmitted from father to daughter or mother to son. The researchers integrated evolutionary theory with recent advances in the molecular regulation of gene expression and androgen-dependent sexual development to produce a biological model that delineates the role of epigenetics in homosexuality. Epi-marks constitute an extra layer of information attached to our genes’ backbones that regulates their expression. While genes hold the instructions, epi-marks (switches) direct how those instructions are carried out – when, where and how much a gene... Show More

Please sign up to read full document.

YOU MAY ALSO FIND THESE DOCUMENTS HELPFUL

POPULAR ESSAYS

James Joyce: Reflections on the Legacy of the Artist Objectives of Performance Appraisal System Internet Essay Autism Essay Bulimia nervosa Essay World War II Essay Nosocomial infection Essay Family Essay

Share this Document

Cancel Send

Join millions of other students and start your research

Become a StudyMode Member

SIGN UP - IT's FREE

Have a great research document you think will help inspire other StudyMode members?

Share your document

Upload Now

Get full access to more research and tools for only $0.33/day

Upgrade your Membership

GET PREMIUM @2017 studym.wressy.com Legal Site Map Advertise studym.wressy.com, Online Education, Hollywood, CA

More great study tools:


{"hostname":"studym.wressy.com","essaysImgCdnUrl":"\/\/images-study.netdna-ssl.com\/pi\/","useDefaultThumbs":true,"defaultThumbImgs":["\/\/stm-study.netdna-ssl.com\/stm\/images\/placeholders\/default_paper_1.png","\/\/stm-study.netdna-ssl.com\/stm\/images\/placeholders\/default_paper_2.png","\/\/stm-study.netdna-ssl.com\/stm\/images\/placeholders\/default_paper_3.png","\/\/stm-study.netdna-ssl.com\/stm\/images\/placeholders\/default_paper_4.png","\/\/stm-study.netdna-ssl.com\/stm\/images\/placeholders\/default_paper_5.png"],"thumb_default_size":"160x220","thumb_ac_size":"80x110","isPayOrJoin":false,"essayUpload":false,"site_id":1,"autoComplete":false,"isPremiumCountry":false,"userCountryCode":"US","logPixelPath":"\/\/smhpix.com\/pixel.gif","tracking_url":"\/\/smhpix.com\/pixel.gif","cookies":{"unlimitedBanner":"off"},"essay":{"essayId":37779439,"categoryName":"Periodicals","categoryParentId":"17","currentPage":1,"format":"text","pageMeta":{"text":{"startPage":1,"endPage":2,"pageRange":"1-2","totalPages":2}},"access":"premium","title":"The Role of Epigenetics in Homosexuality","additionalIds":[9,7,103,93],"additional":["Entertainment","Education","Entertainment\/Film","Education\/Greek System"],"loadedPages":{"html":[],"text":[1,2]}},"user":null,"canonicalUrl":"http:\/\/studym.wressy.com\/essays\/The-Role-Of-Epigenetics-In-Homosexuality-1664753.html","pagesPerLoad":50,"userType":"member_guest","ct":10,"ndocs":"1,500,000","pdocs":"6,000","cc":"10_PERCENT_1MO_AND_6MO","signUpUrl":"https:\/\/studym.wressy.com\/signup\/","joinUrl":"https:\/\/studym.wressy.com\/join","payPlanUrl":"\/checkout\/pay","upgradeUrl":"\/checkout\/upgrade","freeTrialUrl":"https:\/\/studym.wressy.com\/signup\/?redirectUrl=https%3A%2F%2Fstudym.wressy.com%2Fcheckout%2Fpay%2Ffree-trial\u0026bypassPaymentPage=1","showModal":"get-access","showModalUrl":"https:\/\/studym.wressy.com\/signup\/?redirectUrl=https%3A%2F%2Fstudym.wressy.com%2Fjoin","joinFreeUrl":"\/essays\/?newuser=1","siteId":1,"facebook":{"clientId":"306058689489023","version":"v2.9","language":"en_US"}} tracking img