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Breeding Field Trial

QuestionAnswer
Variation is taken account of in field trial via Taking several replicates
Explain why treatments are randomised To eliminate bias
State how valid conclusions can be made in field trials Selection of appropriate treatments (e.g. same volume of water)
Define inbreeding Breeding related individuals for several generations until population breeds true.
Define outbreeding. Breeding two different unrelated breeds together with desirable characteristics.
Which type of breeding programme eliminates heterozygotes Inbreeding
State one example of F1 hybrid vigour increased growth/yield/disease resistance
Which type of breeding programme produces F1 hybrids Crossbreeding
Explain how to breed F1 hybrids Maintain parent breed
Explain why F1 hybrid is not bred together The F2 is too genetically variable.
Which type of breeding programme results in accumulation of homozgous recessive deleterious alleles. Inbreeding
Explain the issue with inbreeding depression Lowers reproductive success OR ability to survive to reproduce
State the effect of inbreeding on genetic diversity Lowers genetic diversity
Does inbreeding or crossbreeding or both produce offspring with improved characteristics. Improved characteristics.
Which type of breeding programme is responsible for creation of new allele combinations increasing variation Cross breeding
Define inbreeding depression Accumulation of homozygous recessive deleterious alleles.
Created by: brightminds
 

 



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