A population of red coloured beetles and green coloured beetles thrive on the two opposite sides of a river. Gene flow between the two populations of beetles separated by the river is__________.

Maximum

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Minimum

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Not possible

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None of these

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Solution

The correct option is B
Minimum

Since the two populations of the beetles are separated by a river, the migration between the two communities is limited, but not restricted. Hence there is a minimum possible gene flow between the two populations.

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Similar questions

A population of red colored beetles and green colored beetles thrive on the two opposite sides a river. Gene flow between the two populations of beetles separated by the river will be _____.

Q. Gene flow between the two populations of beetles separated by the river is maximum.

Q. A group of red beetles lives on green leaves of a tree. Beetles multiply through sexual reproduction. One day, some green beetles are seen among the red beetles. Green beetles breed to produce green progeny. Crows on the tree eat beetles. The colour composition of the beetle population is likely to change in the following manner.

Red-coloured beetles are living on green leaves of bushes. These beetles increase in numbers by sexual reproduction. Crows, being their predators, consume beetles and regulate their population. During reproduction, few beetles develop green colour instead of red colour. This variation in body colour gives green coloured beetles an advantage and over the years, the number of green beetles in the population will increase generation after generation.
Which of the following statements are correct regarding the given paragraph:
(i) The given paragraph depicts an example of "ontogeny recapitulates phylogeny".
(ii) Artificial selection is exerted by crows.
(iii) Natural selection is exerted by crows.
(iv) More red-coloured beetles will be eaten up.
(v) The given paragraph depicts an example of convergent evolution.

Q. Read the given paragraph carefully:
Red-coloured beetles are living on green leaves of bushes. These beetles increase in numbers by sexual reproduction. Crows, being their predators, consume beetles and regulate their population. During reproduction, few beetles develop green colour instead of red colour. This variation in body colour gives green coloured beetles an advantage and over the years, the number of green beetles in the population will increase generation after generation.
Which of the following statements are correct regarding the given paragraph:
(i) The given paragraph depicts an example of "ontogeny recapitulates phylogeny".
(ii) Artificial selection is exerted by crows.
(iii) Natural selection is exerted by crows.
(iv) More red-coloured beetles will be eaten up.
(v) The given paragraph depicts an example of convergent evolution.

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A population of red coloured beetles and green coloured beetles thrive on the two opposite sides of a river. Gene flow between the two populations of beetles separated by the river is__________.

The correct option is B Minimum Since the two populations of the beetles are separated by a river, the migration between the two communities is limited, but not restricted. Hence there is a minimum possible gene flow between the two populations.

The correct option is B
Minimum

Since the two populations of the beetles are separated by a river, the migration between the two communities is limited, but not restricted. Hence there is a minimum possible gene flow between the two populations.