Biology

[Troll]

The sample is too small.

Yes dear...

[Lucy]

The sample is too small.

[NotAllThere]

1. Males don't live as long (wot DP said)
2. Less males then females born. Why should the distribution of the sexes be assumed equal?

Fewer

[ferret]

1. Males don't live as long (wot DP said)
2. Less males then females born. Why should the distribution of the sexes be assumed equal?

1. In a sealed container you would see the bodies.
2. Something to do with chromosomes and the law of averages.

I would go with the sample being far too small to be statistically significant on this one. Been a while since I did any stats but am sure there is something that would show that 38 and 42 are so close in this sample size that are, in effect, equal.

[TimberWolf]

Give a reason for the discrepancy between M & F numbers

1. Males don't live as long (wot DP said)
2. Less males then females born. Why should the distribution of the sexes be assumed equal?

[threaded]

As temperature goes up the fruit fly population should go down as the flies will suffer heat-stress and the gestation period increases.

You'd think they'd ask questions related to reality.

I think they're talking of a different animal, a crocodile for example, not a fruit fly.

Stoopid questions.

threaded in "GIGO" mode.

[Troll]

It's actually a question in a O' Level paper I was helping sprog with - with my limited knowledge of genetics I would have expected a 50 /50 split - lower male lifespan sounds plausible, gender in the fruit fly is not affected by external influences - i.e. temperature & I agree the sample rate is very small.

Googling doesn't help except to highlight that Darwin pondered the same issues

The next question is where the temperature is increase to 25 degrees and the population goes up - which can be explained by shorter incubation periods

[shelby68]

There were originally 42 male fruit flies as well but 4 of them got nagged to death by the female fruit flies......

[ControlG]

Sample is too small to draw any conclusions from the difference in numbers.

Leave for much longer and see what you get then.

[Bod]

Give a reason for the discrepancy between M & F numbers

4 of the males died in flagrante delicto

[threaded]

Sealed glass container with food and water sufficient to support life... into which are placed a single male & female fruit fly & container is kept at constant 20 degrees.

After 40 days there are:

38 Male fruit flies

42 female fruit flies

Give a reason for the discrepancy between M & F numbers

Fruitfly sex is determined by environmental conditions during metamorphosis?

[Churchill]

Males have a shorter lifespan than females.

He didn't mention morbidity!

[DimPrawn]

Sealed glass container with food and water sufficient to support life... into which are placed a single male & female fruit fly & container is kept at constant 20 degrees.

After 40 days there are:

38 Male fruit flies

42 female fruit flies

Give a reason for the discrepancy between M & F numbers

Males have a shorter lifespan than females.

[Churchill]

Sealed glass container with food and water sufficient to support life... into which are placed a single male & female fruit fly & container is kept at constant 20 degrees.

After 40 days there are:

38 Male fruit flies

42 female fruit flies

Give a reason for the discrepancy between M & F numbers

4 of the females are lesbians?

[Troll]

Sealed glass container with food and water sufficient to support life... into which are placed a single male & female fruit fly & container is kept at constant 20 degrees.

After 40 days there are:

38 Male fruit flies

42 female fruit flies

Give a reason for the discrepancy between M & F numbers