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11 AGS Unit 1 - AS Quiz

Select the Definition that corresponds to the displayed Term.
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1. define fertility




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2. recall the difference between open, closed and isolated systems in terms of the flow of energy and matter




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3. Recall the hormone responsible for milk letdown in cows




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4. explain why nutrition affects reproduction




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5. recall the stages of oestrous




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6. explain the effect of environment and genotype on the phenotype of an animal




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7. recall the function of prostaglandin




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8. recall the function of progesterone




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9. Describe a Company




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10. Recall where testosterone is produced in males




Select the Term that corresponds to the displayed Definition.
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11. Observe, collect and record information on the physical and biological resources of a production unit including soil, climate, vegetation and topography.




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12. You cannot compare different breeds - +1 for Brahman is not the same as +1 for Hereford. Breeders need to be honest. There needs to be adequate numbers of the breed available to compare.




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13. Genetic Association Among Traits: selection for one particular characteristic, may have a positive or a negative effect on another. This is because more characteristics or traits are controlled by a combination of genes, rather than one single gene.




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14. Secretions from the Prostate gland help with mobility and survival of the sperm




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15. Some breeds are more fertile than others eg British breeds are more fertile than Bos indicus breeds in cattle and Border-Leicester sheep are more fertile than Merino sheep




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16. The study of the structure of organisms, especially the internal structure




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17. cloning and genetic engineering. The development of new genetic technologies in animal production can lead to improved animal performance.




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18. The evaluation of an animal through performance of its progeny e.g. milk and egg production. Males produce many more offspring during his lifetime than a female, the progeny test is applied more widely to males. It takes years to gather data.




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19. accessory sex organ on the outside of the female. Will swell when animals are ready to mate.




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20. Ovary – produces follicles, when a follicle bursts, this contains the egg (ovum). Fallopian tube: site of fertilisation The fertilised egg moves down the fallopian tube towards the uterus Body of the uterus: site of implantation.





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