3.2 Plant and Animal Breeding Flashcards
Breeders develop crops and animals with …
Higher food yields, higher nutritional values, pest and disease resistance and ability to thrive in particular environmental conditions
What does the selection of treatments ensure?
The selection of treatments ensures valid comparisons can be made
What does the number of replicates take into account?
The number of replicates takes into account the variability within the sample
What does randomisation of treatments do?
Randomisation of treatments eliminates bias when measuring treatment effects
How can new alleles be introduced?
New alleles can be introduced by crossing a cultivar or breed with an individual with a different, desired genotype
What is a benefit of F1 hybrids
Plants with increased vigour may have increased disease resistance or growth rate
How can genome sequencing be used in breeding programmes?
Single genes for desirable characteristics can be inserted into the genomes of crop plants, creating genetically modified plants with improved characteristics
What is the purpose of Bt toxin in plants?
Inserting Bt toxin into crop plants results in pest resistance
What is the glyphosate resistant gene inserted for?
Herbicide tolerance
