Sexual reproduction

Human Anatomy, Physiology, and Medicine. Anything human!

Moderators: Leonid, amiradm, BioTeam

Post Reply
biology_is_power
Garter
Garter
Posts: 20
Joined: Sun Mar 05, 2006 6:23 am

Sexual reproduction

Post by biology_is_power » Wed Apr 05, 2006 12:30 am

How come there are no two products of sexual reproduction that are identical? (except for identical twins which are rare)

User avatar
canalon
Inland Taipan
Inland Taipan
Posts: 3909
Joined: Thu Feb 03, 2005 2:46 pm
Location: Canada

Post by canalon » Wed Apr 05, 2006 2:56 am

Hint: meiosis
Patrick

Science has proof without any certainty. Creationists have certainty without
any proof. (Ashley Montague)

2810712
King Cobra
King Cobra
Posts: 697
Joined: Thu Jan 20, 2005 12:19 pm

Post by 2810712 » Wed Apr 05, 2006 6:53 am

The possible types of chromosomal combinations resulted from a fertilization/syngamy without considering crossing over are equal to the n'th power of 4 [ n is the no. homologous chromosome pairs in a diploid cell]
For humans it is 4 raised to the power 23 multiplied by and...as it is so large generally for most of the sexual reproduction [ also consider the crossing overs and mutations] the probability of getting the same combo is very less.

hrushikesh
Last edited by 2810712 on Thu Apr 20, 2006 2:05 pm, edited 1 time in total.

biology_is_power
Garter
Garter
Posts: 20
Joined: Sun Mar 05, 2006 6:23 am

Post by biology_is_power » Wed Apr 05, 2006 3:43 pm

ohh i see. so the chances are extremely less. thanks

Post Reply

Who is online

Users browsing this forum: No registered users and 5 guests