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Andrew [12]
3 years ago
8

Magine a large source population of 500 flies at a particular time that we will call t0 . the flies have brown or ebony bodies.

based on the information given above, how many total alleles for body color exist in the population?
Biology
1 answer:
Hatshy [7]3 years ago
4 0
The answer would be: 1000 alleles

<span>The number of alleles will determine the possible combination of the phenotype. The flies have two kinds of color: brown or ebony bodies. Since there is two possible phenotype, the allele should be two. Then, if there are 500 flies and there are two alleles for every fly, the number of alleles would be: 500 flies * 2 alleles/fly= 1000 alleles</span>
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3 years ago
A planet has a mass of 5.97 x 1024 kg and a radius of 6.38 x 106 m. Find the weight of a 65.0 kg person at 1000 km above the sur
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<u>Answer:</u> The weight of the person above the surface of a planet is 635.83N.

<u>Explanation:</u>

To calculate the weight of a person, we use the formula:

w=mg     ....(1)

where,

w = weight of an object

m = mass of the person = 65kg

g = acceleration due to the gravity of the planet

For the calculation of weight, we need to first find the acceleration due to gravity and for that we use the formula:

g=\frac{GM}{r^2}

where, g = acceleration due to gravity = ?m/s^2

G = Universal gravitational constant = 6.67\times 10^{-11}Nm^2/kg^2

M = mass of the planet = 5.97\times 10^{24}kg

r = distance of the person from the planet = 6.38\times 10^6m

Putting values in above equation, we get:

g=\frac{(6.67\times 10^{-11}kgm/s^2.m^2/kg^2)(5.97\times 10^{24}kg)}{(6.38\times 10^6m)^2}\\\\g=9.782m/s^2

Putting this value in equation 1, we get:

w=65kg\times 9.782m/s^2=635.83N

Hence, the weight of the person above the surface of a planet is 635.83N.

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