Glossary with audio assistance

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Back cross to recessive

identification of the recessive carrier can be done by a test mating with a known homozygous recessive animal. This will determine if the other animal is carrying a recessive gene. If they are carrying a recessive gene, then a percentage of the animals show the recessive characteristic. If they are not a recessive carrier then the recessive characteristic will not appear. We will use the Labrador as an example at the end of the glossary.

Back scatter

scattered radiation which travels in the opposite direction to the primary beam


the presence of bacteria in the blood


prokaryotic single-celled organism. Ranges in size from 0.3µm-10 µm


an agent that kills bacteria


prevents bacteria from multiplying but does not kill them

Barrier nursing

utilisation of protective clothing and isolation to prevent transmission of disease from hospitalised animals


type of granular white blood cell


pertaining to the bile duct


yellow green bile pigment which results from the breakdown of red blood cells

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