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Topic: Chemotaxis migration

5th November 2014 at 6:31pm

JimNorfolk
-- MODERATOR --
North Norfolk

1819 posts - View

Q12 (e) March 2014 Module 7 : define the following terms in relation to the honey bee. Chemotaxis migration. Anyone any ideas?
5th November 2014 at 6:49pm

MarkB
Waveney

233 posts - View

What was the rest of the question about? Chemotaxis is the movement of a cell or organism towards a chemical stimulus but I can't really see how this fits in the Module 7 syllabus?
5th November 2014 at 8:03pm

JimNorfolk
-- MODERATOR --
North Norfolk

1819 posts - View

Me neither. The rest of the terms to define were: haploid, mitosis, meiosis, heterozygous. All standard o level genetics stuff.
5th November 2014 at 8:20pm

MarkB
Waveney

233 posts - View

Then I can only think in this context that it describes the movement of a spermatozoa to an egg during fertilisation. At least it's unlikely to come up in Saturday's paper!
5th November 2014 at 8:58pm

JimNorfolk
-- MODERATOR --
North Norfolk

1819 posts - View

That is what I thought but strange context. I normally work through every past paper available but this time we seem to be limited to just three. There seems to be such a wide range of potential questions it will be a bit more of a lottery than usual.
15th February 2015 at 2:11pm

Sam42
Rugby

1 post - View

Is it possible that someone from the Exam board could answer this?

We also had a discussion the other day when working through past papers, and did not know what answer was expected.
15th February 2015 at 4:20pm

Nigel Pringle
North Yorkshire

2325 posts - View

How about drones chemotaxic flight (migration) or orientation towards queens on mating flights? Or Nasonov secretions for attraction of flying bees for locating the main body mass of a swarm? These though are all forms of chemoattraction with movement, so may fit a losse definition of chemotaxis.

Weird question though, at least in context to the rest of the stuff.
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