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Unit 3 CfE Higher Biology - Plant and Animal Breeding Flashcards | StudBud
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Unit 3 CfE Higher Biology - Plant and Animal Breeding
Unit 3 CfE Higher Biology - Plant and Animal Breeding
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Unit 3 CfE Higher Biology - Plant and Animal Breeding
Flashcards
10 cards
F
Practice quiz
P
Host live
L
Questions
10
Answers
1
Inbreeding depression is the accumulation of...
Dominant, deleterious, homozygous alleles.
Recessive, deleterious, homozygous alleles.
Dominant, deleterious, heterozygous alleles.
Recessive, deleterious, heterozygous alleles.
2
A systemic pesticide. is a chemical that...
Is absorbed into the plant xylem and kills pests.
Is absorbed into the plant xylem and kills all of the plant.
Kills pests on contact.
Kills plant tissue on contact.
3
Hybrid vigour is achieved by...
Crossing two different breeds to produce a F1 population.
Self pollinating plants.
Crossing existing F1 hybrids.
Performing a test cross.
4
In plant field trials, randomisation of treatments...
Eliminates bias
Makes the experiment valid
Allows for the control of variables.
Makes the experiment reliable
5
Which of these CANNOT be used to idenitify genotypes in organisms?
Test cross
Genomic sequencing
Back cross
Family pedigrees
6
Which of these is NOT a benefit of biological control...
Does not encourage resistant populations of pests.
Avoids the use of persistent, toxic chemicals.
Is often a more selective method of pest control.
Completely destroys the pest.
7
Which of these is a use for a plant field trial.
Evaluation of a new treatment
Evaluation of a new cultivar
Evaluation of a new cultivar
All of the above.
8
A contact herbicide is a chemical that...
Is absorbed into the plant xylem and kills pests.
Kills plant tissue on contact.
Is absorbed into the plant xylem and kills all of the plant.
Kills pests on contact.
9
Which of these is a feature of
annual
weeds...
Production of deep underground roots.
Vegetative reproduction
Storage organs
High seed output
10
Which of these is NOT a method of cultural control in weeds
Fertilisers that encourage rapid growth of crop plant.
Treatment with pesticides.
Planning cover crops
Crop rotation
