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ycow [4]
3 years ago
15

A population of Drosophila simulans carries three alleles at the white locus: the wild-type allele at 86 percent, w1 at 9 percen

t, and w2 at 5 percent. What can we say about this locus population
Biology
1 answer:
vladimir1956 [14]3 years ago
3 0

Answer:

the population is polymorphic.

Explanation:

Polymorphism is the discontinuous genetic variation that leads to the production of varying unique kinds or forms of individuals within the population of an individual species.

Take for instance, allelic polymorphism is seen in the presence of multiple alleles that is produced within the members of an individual species as in peppered moths, human blood groups, and two-spotted ladybugs.

We have different causes of polymorphism: polymorphism can be sustained by an equity among variation developed by new mutations and natural selection. Genetic variation might be due to frequency-dependent selection.

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Which one of the following is technique for pinpointed the cause of stress
soldier1979 [14.2K]

Answer:

HALT is a technique for pinpointing the cause of stress.

Explanation:

6 0
3 years ago
Two resistors or resistance 2ohms and 4 ohms are connected in series and then in
kari74 [83]

Answer:

Ratio = 9 : 2

Explanation:

We have been given two resistors, one with 2ohms rating and another with 4 ohms rating.

First they are connected in series. When resistors are connected into series, Equivalent resistance is given by:

Resistance (Equivalent) = R₁ + R₂ = 6 ohms

When these are connected in parallel, equivalent resistance becomes:

1 / Resistance (Equivalent) = 1/R₁ + 1/R₂ = 1/2 + 1/4

1 / Resistance (Equivalent) = 3/4

Resistance (Equivalent) = 4/3

Ratio = R(Series)/ R(Parallel)

Ratio = 6 : 4/3

Ratio = 18 : 4

Ratio = 9:2

3 0
4 years ago
The characteristic of a cell membrane that allows materials to pass through it is called
faust18 [17]

Answer:

A

Explanation:

8 0
3 years ago
Read 2 more answers
Do you think that a high-sodium diet could damage the body over time? Why or why not?
kodGreya [7K]

Answer:

A high-sodium diet could damage the body over time as it may cause hypertension, heart failure, kidney disease, stroke etc.

Explanation:

Human body needs a small amount of sodium to perform functions like maintaining the proper balance of water and minerals, nerve impulse transmission, and contraction and relaxation of muscles. It requires about 500 mg of sodium daily to perform these important functions.

But a high-sodium diet can lead to hypertension (high blood pressure), heart disease, kidney disease and stroke.  It can also cause depletion of calcium from the bone resulting in osteoporosis. Excess sodium in the blood causes the body to hold onto more water to dilute the sodium, which increases the amount of fluid surrounding the cells and the volume of blood in the bloodstream. The increase in blood volume causes more pressure on the blood vessels and the stiffening of blood vessels, which leads to high blood pressure (hypertension) and more work for the heart. This causes more burden to the heart resulting in heart attack and stroke.

Commercially processed foods like bread, pasta, soups, chips etc contains high sodium than naturally processed food like fruits, vegetables, whole grains, nuts, dairy products etc.

The ideal intake amount of sodium for a normal, healthy individual is 2,300 mg per day. For persons having high blood pressure or cardiovascular disease, the recommended amount is 1500 mg or less per day.

5 0
3 years ago
I need 6 FACTS about THE SPIRAL GALAXY
EastWind [94]

Answer:  1)Spiral galaxies are a class of galaxies originally described by astronomer Edwin Hubble in his 1936 work The Realm of the Nebulae.

2) They are part of the Hubble sequence a morphological classification scheme for galaxies.

3) Spiral galaxies usually consist of a rotating disk that contains stars, dust, gas, and a concentration of stars known as the bulge in the center.

4) These bulges are often surrounded by a faint halo of stars, many of which reside in globular clusters – a spherical collection of stars that orbits a galactic core.

5) As such, Spiral galaxies are named after their spiral structures that extend from the center into a galactic disk.

6) They have spiral arms – sites of ongoing star formation that are brighter than the surrounding disk due to the presence of young OB stars that inhabit them.

Explanation:

5 0
3 years ago
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