In pigs, the number of teats and litter size are under genetic control - VCE - SSCE Biology - Question 7 - 2009 - Paper 1
Question 7
In pigs, the number of teats and litter size are under genetic control. Each piglet must have ready access to a teat.
British breeds of female pigs (called sows) ge... show full transcript
Worked Solution & Example Answer:In pigs, the number of teats and litter size are under genetic control - VCE - SSCE Biology - Question 7 - 2009 - Paper 1
Step 1
A. British farmers wanted to produce smaller-sized litters.
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Answer
This option is unlikely because the British farmers would not benefit from smaller litters, as it would reduce the number of piglets available for farming.
Step 2
B. Chinese farmers wanted to produce larger-sized litters.
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This option may be plausible, but the intent behind the breeding isn't primarily stated to be by Chinese farmers seeking larger litters.
Step 3
C. British sows were mated with Meisham males.
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This option describes the breeding process but does not explain the likely intent behind it. Hence, it's not the most accurate choice.
Step 4
D. Meisham sows were mated with British males.
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This is the most likely scenario since crossbreeding aimed to enhance the litter size and teat quantity. By mating Meisham sows with British males, the intent appears to increase overall productivity.
