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Jun 26th, 2009, 02:45 AM
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#1 (permalink)
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Member
Join Date: May 31, 2009 - 7:21 am
Posts: 336
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I'm no biologist but have been wondering about this: A vast majority of animals and ofcourse humans need a male and a female to reproduce. Ofcourse, potential arises that there might be problems in reproduction (for example, diseases passed on by one of the parents, required effort etc).
On the other hand, a very few animals can have asexual reproduction. I'd think that would be a LOT more efficent in terms of reproduction , for one, no need for a mate and plus 100 percent of kids will be child-bearing instead of 50 percent.
So considering asexual production to be more efficent, as life evolved on our planet, I wonder how did it lose out to hetrosexuality?
PS. Please don't bring religion in the discussion since this is posted in the Science forum.
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Jun 28th, 2009, 02:33 PM
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#2 (permalink)
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Senior Member
Join Date: May 16, 2009 - 4:41 am
Location: North of Umreeka
Posts: 874
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Asexual reproduction can be disadvantageous because:
Genetic diseases present in parent will be passed on to the offspring and lower their chance of survival.
In case environmental factors change, organisms who are a result of asexual reproduction may not be able to adapt to them and their whole species is at risk of being wiped out. Sexual reproduction provides a variety in genes so if the environment works against organisms, some may be able to adapt to the changes in the environment due to the variation in traits and genes
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Jun 29th, 2009, 05:52 PM
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#3 (permalink)
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Moderator Religion & Scripture, Pakistan Affairs Forum
Join Date: Sep 30, 2004 - 6:31 pm
Posts: 7,874
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yea Boii, u need to read your biology boo again.
ToooN Lang Ja, saadi kher ae
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Jun 30th, 2009, 09:44 AM
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#4 (permalink)
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Senior Member
Join Date: Jun 7, 2006 - 1:21 pm
Location: monkVille
Posts: 13,077
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I have feeling that yoi and tt are going to become friends.
ﺃﷲ ﻧﯣﺮ ﺇﺴﻣﺇﯣﺇﺕ ﯣﺇﻠﺄﺮﺾ ''Then God created light, There was still nothing but we were able to see'' "forgot who said it "
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Jun 30th, 2009, 02:02 PM
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#5 (permalink)
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The Dung Beetle
Join Date: Feb 5, 1999 - 1:00 am
Location: CA 90210
Posts: 16,027
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one word - meiosis. this fellow is like crack for evolution. and the genetic variation sexual reproduction brings in helps rapidly capture up any new niche that opens up for the taking.
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Jun 30th, 2009, 03:07 PM
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#6 (permalink)
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Senior Member
Join Date: Jan 6, 2009 - 4:31 pm
Location: Ghar
Posts: 644
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 koi hal nai......
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Jun 30th, 2009, 03:19 PM
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#7 (permalink)
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Director GupShup
Join Date: Jul 2, 2007 - 5:01 pm
Location: Metropolis
Posts: 21,585
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Lot of people are already in love with their body, they dont require a partner
"Some people can read War and Peace and come away thinking it's a simple adventure story. Others can read the ingredients on a chewing gum wrapper and unlock the secrets of the universe."~Lex Luthor
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Jun 30th, 2009, 03:29 PM
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#8 (permalink)
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Senior Member
Join Date: Jan 8, 2008 - 4:31 pm
Location: Saat samandar par
Posts: 11,666
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Quote:
Originally Posted by TLK
Lot of people are already in love with their body, they dont require a partner
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Yeah but they cannot reproduce by loving their own body. YB is discussing reproduction process and importance of sex for this process.
I am a man with a plan. A plan to live a simple , fulfilling life.
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Jun 30th, 2009, 05:12 PM
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#9 (permalink)
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Living In Paradigm..
Join Date: Nov 29, 2008 - 5:59 pm
Location: New York
Posts: 4,194
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holy. f ..
that's the last thing i wanted to heard before suicide.. oki.. Kill me !
I disapprove of what you say, but I will defend to the death your right to say it.
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Jun 30th, 2009, 05:19 PM
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#10 (permalink)
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Junior Member
Join Date: Apr 23, 2009 - 6:08 am
Posts: 48
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wel sexual reproductio is imp bcs chances of survival r maxium.....a procss called crossing over takes place during meosis in wic offsprings get som new characteristics frm thier parents..hence thats da reason of s many differnt faces chaacters in da world
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Jun 30th, 2009, 05:46 PM
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#11 (permalink)
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Senior Member
Join Date: Jan 30, 2006 - 2:22 pm
Location: Toronto
Posts: 1,127
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Quote:
Originally Posted by firenze
holy. f ..
that's the last thing i wanted to heard before suicide.. oki.. Kill me !
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 ...............>firenze
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Jun 30th, 2009, 11:54 PM
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#12 (permalink)
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Senior Member
Join Date: Mar 26, 2009 - 4:00 pm
Posts: 5,755
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I wonder what would happen to the world, if for a whole 24hours no one species had sex, I mean no one, no birds,humans, fish, flies!!! :whistling
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Jul 2nd, 2009, 03:52 AM
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#13 (permalink)
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Banned
Join Date: Apr 3, 2009 - 11:15 pm
Location: sydney, AUSTRALIA
Posts: 971
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why have sex:
for sexual satisfaction......
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Jul 2nd, 2009, 04:17 AM
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#14 (permalink)
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Moderator Pakistan Affairs, World Affairs Forum
Join Date: Nov 4, 2001 - 1:00 am
Location: Blogsphere
Posts: 3,120
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Quote:
Originally Posted by firenze
holy. f ..
that's the last thing i wanted to heard before suicide.. oki.. Kill me !
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Teek hai, but only if I'm in your will. 
Life is a tale told by idiots... full of sound and fury signifying nothing.
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Jul 16th, 2009, 09:19 AM
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#15 (permalink)
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Member
Join Date: Jul 15, 2009 - 10:27 am
Posts: 300
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maybe off topic,but its informative,"only humans and dolphins do sex for pleasure other than reproduction necessity,all the other animals do sex for reproduction only."
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Jul 16th, 2009, 09:28 AM
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#16 (permalink)
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Senior Member
Join Date: Oct 31, 2008 - 1:55 pm
Posts: 4,337
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Dont worry guyz British Scientist claimed to have created human sperm from stem cells which means women can use it to conceive without men 'help'.  Let's see how good their claim is and only time will tell us. But it sure does highlight men future. 
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Jul 16th, 2009, 01:48 PM
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#17 (permalink)
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Moderator Life & Relationships, Bazaar Forum
Join Date: Jul 6, 2004 - 7:35 pm
Location: in the kitchen
Posts: 32,476
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why have sex?
cz it's fun.
do we need any other reason?
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Jul 16th, 2009, 03:05 PM
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#18 (permalink)
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Traditionalist
Join Date: Apr 4, 2006 - 4:26 pm
Location: Berkshire
Posts: 10,293
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homo kay khwab main ....
"In the fight against the Monoculture, the main sign is the hijab, and the main act is the Prayer". T.J Winter
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Jul 16th, 2009, 09:53 PM
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#19 (permalink)
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vamp1r3
Join Date: Sep 29, 2005 - 4:35 pm
Location: candyland
Posts: 8,091
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because it's a carnal desire built into humans.
why, do you plan on being a celebate?
when we found a rip in heaven
we should have ascended then
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Jul 17th, 2009, 07:45 AM
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#20 (permalink)
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Member
Join Date: Jul 15, 2009 - 10:27 am
Posts: 300
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Quote:
Originally Posted by iShaz
Dont worry guyz British Scientist claimed to have created human sperm from stem cells which means women can use it to conceive without men 'help'. Let's see how good their claim is and only time will tell us. But it sure does highlight men future. |
test tube babies have been born since many years.its common.
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