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True breeding

Definition

noun

A kind of breeding in which the parents with a particular phenotype produce offspring only with the same phenotype.


Supplement

An example is the Aberdeen Angus cattle, which have been black for many generations.

With plants, true breeding occurs when plants produce only offspring of the same variety when they self-pollinate. For instance, a plant that has blue flowers will produce only seeds that will grow into plants that have blue flowers. With true breeding, the trait is passed on to all subsequent generations. For this to occur the parents are homozygous for a trait -- which means the parents must be both dominant or both recessive.

See also: inbreeding.


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Mendel's Law

... generation if pea plants with restricted yellow pods are crossed with true-breeding inflated green pods in the original cross and then the F1 generation is crossed.

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by curlzz07
Sat Oct 04, 2014 2:28 pm
 
Forum: Genetics
Topic: Mendel's Law
Replies: 0
Views: 22

How dominance works at the DNA/RNA/protein

... you have two pea plants, one gives green peas and one yellow. They are true breeding because they self-pollinate (“mother” and “father” are one plant). Now you decided ...

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by Cat
Fri Oct 05, 2012 1:15 am
 
Forum: Genetics
Topic: How dominance works at the DNA/RNA/protein
Replies: 10
Views: 7749

What is true breeding?

I think that in definition of true breeding it says: when bred with itself", so it should always be the same genotype for both

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by JackBean
Sun May 06, 2012 8:06 pm
 
Forum: Genetics
Topic: What is true breeding?
Replies: 3
Views: 10503

What is true breeding?

So my 1st example RR x RR or rr x rr this is true breeding? Not RR x rr correct? RR x rr would be a mono hybrid right? Thank so much.

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by MissionCO
Sun May 06, 2012 8:02 pm
 
Forum: Genetics
Topic: What is true breeding?
Replies: 3
Views: 10503

What is true breeding?

True breeding means that all offspring has the same phenotype as parents. This is possible only with homozygotes, i.e. ...

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by JackBean
Sun May 06, 2012 9:15 am
 
Forum: Genetics
Topic: What is true breeding?
Replies: 3
Views: 10503
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