Dictionary » B » Backcross

Backcross

Definition

verb

To cross a hybrid (i.e. offspring of the F1 generation) with its parent


noun

(1) The offspring produced from such a cross

(2) The process of crossing a hybrid with its parent or with another individual with genotype similar to its parent


Supplement

This method has long been used in horticulture, e.g. to incorporate desirable traits to the elite line of crops. At present, the deliberate back-crossing is carried out to breed and produce gene knockouts used in genetics research.


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Arabidopsis T-DNA insert

... plants, based on segregation ratio (3:1) and PCR (using genomic DNA with gene specific primers and the left border primer). Next,I did repeted backcrosses of homozygous mutant with wild type Col 0 plants. The following pattern occured after the 4th backcross: -the seeds produced from the backcross ...

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by dcoman
Tue Apr 20, 2010 11:40 am
 
Forum: Molecular Biology
Topic: Arabidopsis T-DNA insert
Replies: 0
Views: 1548

Genotype or type of allele for a character

in a testcross you do not use one of a parents. You use a recessive homozygous individual. If you cross it with one of the parents it is called a backcross..

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by MrMistery
Thu Feb 22, 2007 9:28 pm
 
Forum: Genetics
Topic: Genotype or type of allele for a character
Replies: 4
Views: 3492

how can you identify the genotypes?

Just do a testcross and backcross..... :lol: Actually, you can do what Mithril suggest...um by the way Baikuza, do you know how to do a genetic test? :?

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by victor
Wed Oct 26, 2005 1:02 pm
 
Forum: Genetics
Topic: how can you identify the genotypes?
Replies: 8
Views: 4443

BACKCROSS HELP

Be warned though, in a backcross that procent of 50% is strictly theoretical: in reality you will get procents close to that, but not quite... Also, if your population is not pancmictical than you can kiss your whole experiment bye-bye

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by MrMistery
Fri May 13, 2005 7:33 pm
 
Forum: Cell Biology
Topic: BACKCROSS HELP
Replies: 22
Views: 14634

BACKCROSS HELP

... answer. Back Crosses take an offspring and cross with a parent. So theres no way that the offspring could breed with it's brother or sister in a backcross problem. A female offspring can only cross wtih the male parent. And a male offspring can only cross with a female parent. You must take all ...

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by Cross Country Runner
Fri May 13, 2005 1:17 pm
 
Forum: Cell Biology
Topic: BACKCROSS HELP
Replies: 22
Views: 14634
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