Home
Class 12
BIOLOGY
Assertion :- Human exploited the variati...

Assertion :- Human exploited the variatins that variations that were present naurally in the wild populations of plants & animals.
Reason :- Variation is the degree by which progeny remembles from their parents.

A

If both Assertion & Reason are True & the Reason is a correct explanation of the Assertion.

B

If both Assertion & Reason are trur but Reason is not a correct explanation of the Assertion.

C

If Assertion is True but the Reason is Flase.

D

If both Assertion & Reason are false.

Text Solution

AI Generated Solution

The correct Answer is:
To analyze the given assertion and reason, we will break down each component step by step. ### Step 1: Understand the Assertion The assertion states that "Humans exploited the variations that were present naturally in the wild populations of plants and animals." - **Explanation**: This means that humans have taken advantage of the natural differences (variations) found in wild species of plants and animals for various purposes, such as agriculture, domestication, and selective breeding. ### Step 2: Understand the Reason The reason states that "Variation is the degree by which progeny resembles from their parents." - **Explanation**: This definition of variation indicates that it refers to the differences observed in traits between parents and their offspring. Variation is essential for evolution and natural selection, as it provides the raw material for these processes. ### Step 3: Analyze the Relationship Between Assertion and Reason Now, we need to evaluate whether the reason supports the assertion. - **Connection**: The assertion is about how humans utilize natural variations in wild populations, while the reason defines what variation is. Although the reason provides a definition of variation, it does not directly support the assertion that humans exploit these variations. ### Step 4: Conclusion Based on the analysis: - The assertion is true: Humans have indeed exploited natural variations in wild populations. - The reason is also true: Variation can be defined as the differences between progeny and their parents. - However, the reason does not provide a justification for the assertion. ### Final Answer The assertion is true, and the reason is true, but the reason does not support the assertion. ---
Promotional Banner

Similar Questions

Explore conceptually related problems

Read of following statements and find out the incorrect statement(s). a. Genetics deals with the inheritance, as well as variation of characters from parents to offspring. b. Variation is the process by which characters are passed on from parent to progeny. c. Inheritance is the basis of heredity. d. Inheritance is the degree by which progeny differ from their parents. e. Human knew from as early as 8000-10000 B.C. that one of the causes of variation was hidden in sexual reproduction

Read the following five statement five statement (A to E )and select the option with all correct statement : (A) Down's syndrome id due to trisomy of chromosome 22 , (b) Genes are the due of inhetitance ( c) Variation is the degree by which progeny differ from their parents. (d) In chicken ,sex chromosome in male are ZW ,and in females are ZZ (E) Sickle cell anaemia is caused due to change of one base in the gene coding for b-chain of haemoglobin

Assertion :- Inheritance is the basis of hearedity. Reason :- Inheritance is the process by which characters are passed on from parent to progeny.

Assertion: Variations are important for the process of evolution. Reason: Meiosis increases the genetic variability in the population of organisms from one generation ot the next.

Assertion : Plants produced by micropropagation will be genetically identical to original plants from which they were grown. Reason : Plants produced by micropropagation are called somaclones.

Assertion : Genetic variation shown by the plant Rauwolfia vomitoria growing in different Himalayan ranges is very important economically. Reason : The amount and variety of alkaloids presents in this plant, change both between the Rauwolfia species and between the different strains of R. vomitoria.

Select the correct term for the following definitions (I,ii,iii,iv). (i) The taxon is liable to become extinct if not allowed to realise its full biotic potential by providing protection from exotic species/human exploitation/habitat deterioration/depletion of food. (ii) The taxon is facing a high risk of extinction in the wild in the near future due to decreasein its habitat, excessive predation or poaching. (iii) They are species with naturally small populations, either localised or thinly scattered, which are always at risk from pests/pathogens/predators/exotic species.

Assertion: GM food which is prepared from GM crops may be more nutritous and good for health than its natural variant Reason :Bacteria present in the alimentary canal of human could take up the antibiotic resistance gene than is present in GM food. The bacteria would then become resistant to concerned antibiotic

Assertion. A pure-line is the progeny of a large number of heterozygous self pollinated plants. Reason. In this method, a large number of plants with desired characters are selected from a genetically mixed population.

Assertion : The process in which nutrient rich water bodies develop plant population is called eutrophication. , Reason : Eutrophication helps in enhancement of plants and animals population by providing them oxygen.