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Test: Hardy - Weinberg Principle (December 21) - NEET MCQ


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10 Questions MCQ Test - Test: Hardy - Weinberg Principle (December 21)

Test: Hardy - Weinberg Principle (December 21) for NEET 2024 is part of NEET preparation. The Test: Hardy - Weinberg Principle (December 21) questions and answers have been prepared according to the NEET exam syllabus.The Test: Hardy - Weinberg Principle (December 21) MCQs are made for NEET 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Hardy - Weinberg Principle (December 21) below.
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Test: Hardy - Weinberg Principle (December 21) - Question 1

Which of the following is not included in natural selection?

Detailed Solution for Test: Hardy - Weinberg Principle (December 21) - Question 1

Natural selection mainly leads to three selections. They are: Stabilizing selection, directional selection, and disruptive selection. Technical selection does not belong to natural selection. This classification is based on different organism-environmental relationship.

Test: Hardy - Weinberg Principle (December 21) - Question 2

Which of the following are properties of stabilizing selection?

Detailed Solution for Test: Hardy - Weinberg Principle (December 21) - Question 2

Stabilizing selection operates in a constant environment. It favors the average or complex phenotype and eliminates the extreme values. The mean value never changes. Also, the peak gets higher and narrower.

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Test: Hardy - Weinberg Principle (December 21) - Question 3

Mortality in babies is an example of ______

Detailed Solution for Test: Hardy - Weinberg Principle (December 21) - Question 3

Mortality in babies is an example of stabilizing selection. It is all depended on the baby’s birth weight. The optimum birth weight is 7.3 pounds which favor this selection. Newborn infants with less than 5.5 pounds and more than 10 pounds have the highest mortality rate.

Test: Hardy - Weinberg Principle (December 21) - Question 4

Directional selection is also known as ______

Detailed Solution for Test: Hardy - Weinberg Principle (December 21) - Question 4

Directional selection is also known as progressive selection. This selection always operates in a changing environment. After this natural selection, mean value always changed.

Test: Hardy - Weinberg Principle (December 21) - Question 5

What happens during disruptive selection?

Detailed Solution for Test: Hardy - Weinberg Principle (December 21) - Question 5

In disruptive selection, the members of both extreme are selected. The average gets rejected. Most of the individuals get values other than the mean character value. The naturally selected members are shown by two peaks.

Test: Hardy - Weinberg Principle (December 21) - Question 6

How many peaks are there in the disruptive selection?

Detailed Solution for Test: Hardy - Weinberg Principle (December 21) - Question 6

In disruptive selection, most of the individuals get the periphery values at both ends of the curve given in the graph. The population gets divided into two different groups. Hence, they have two peaks which resemble a two-humped camel.

Test: Hardy - Weinberg Principle (December 21) - Question 7

Marine mollusca is also known as _____

Detailed Solution for Test: Hardy - Weinberg Principle (December 21) - Question 7

Marine mollusca is also known as limpets. They are aquatic snails with a conical shaped shell with a muscular foot. They are members of the family Gastropoda. Their shell pattern shows disruptive selection.

Test: Hardy - Weinberg Principle (December 21) - Question 8

How does shell pattern in limpets show disruptive selection?

Detailed Solution for Test: Hardy - Weinberg Principle (December 21) - Question 8

Limpets shell has a continuous pattern with color ranging from pure white to dark tan. They either attached to white gooseneck barnacles or to tan colored rocks. The light-colored limpets camouflaged with white barnacles while tanned limpets camouflaged on tan-colored rocks. But, the limpets with intermediate shell patterns were conspicuous and were preyed by predatory shorebirds.

Test: Hardy - Weinberg Principle (December 21) - Question 9

Which of the following does not belong to the Hardy Weinberg principle?

Detailed Solution for Test: Hardy - Weinberg Principle (December 21) - Question 9

Allele frequencies does not vary from species to species. In a population, the frequency always remains fixed or constant according to Hardy Weinberg principle. The alleles and total genes in any population remain constant and hence stable.

Test: Hardy - Weinberg Principle (December 21) - Question 10

It is known that the total sum of all the frequencies of the allele is _____

Detailed Solution for Test: Hardy - Weinberg Principle (December 21) - Question 10

According to Hardy Weinberg principle, the total sum of all the frequencies of the allele is one. It shows that the gene pool remains the same or constant, i.e. one. Hence, it can be also termed as genetic equilibrium.

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