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Flashcards in Genetic influence on behaviour Deck (5)
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1

Who conducted selection experiments on silver foxes?

Belyeav

2

Who conducted selection experiments on 'dull' and 'bright; rats?

Tyron, 1930s

3

Bees – is foraging in their genes?

Nurses and foragers - Genome mapped on hatching no difference
But develop into different behavioural roles apparently linked to time
With changing roles - some expressed, some turned off
17 differ in expression
Honeybee nest mates transfer a substance called ethyl oleate during trophallaxis – or food transfer - within the colony
This substance is only produced in the crop of foraging bees and it’s presence is transferred to nurses and suppresses their development to the next stage

4

Describe epigenetic modifications.

Alternations to the genome that does not change the DNA sequenceE.g. Environment / nutrition
But does change gene expression (and can be transmitted)
Due to Histone modifications (to the structure the DNA is wound around) and DNA methylation (chemical modification to DNA bases)

5

Who conducted a study on cross-fostering in blue tits and great tits?

Rubenstein and Alcock