Question
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Solving time: 2 mins
Assertion (A): Sacred groves are highly protected.
Reason (R): They are of religious importance to the communities.
(A) Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).
(B) Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).
(C) Assertion (A) is true but reason (R) is false.
(D) Assertion (A) is false but reason (R) is true.
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Text solution
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Option (A) is correct.
Sacred groves are highly protected by certain communities because they are of religious importance to the communities. They have a significant role in in-situ conservation.
Sacred groves are highly protected by certain communities because they are of religious importance to the communities. They have a significant role in in-situ conservation.
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Practice questions from Oswaal CBSE MCQs Chapterwise For Term I II, Class 12, Biology (Oswaal)
Question 1
Which of the following countries has the highest biodiversity?Easy
(A) Brazil
(B) South Africa
(C) Russia
(D) India
Question 2
Main cause of extinction of animals and plants is :Easy
(A) Habitat loss and fragmentation
(B) Competition between species
(C) Over-exploitation
(D) Alien species invasion.
Question 3
Assertion : Pollution reduces species biodiversity.Easy
Reason : Spillover of oil in sea causes death of several marine animals.
(A) Both assertion and reason are true and reason is the correct explanation of assertion.
(B) Both assertion and reason are true but reason is not the correct explanation of assertion.
(C) Assertion is true but reason is false.
(D) Both assertion and reason are false.
Question 4
Cryopreservation of gametes of threatened species in viable and fertile condition can be referred to as :Easy
(A) in site conservation of biodiversity
(B) advanced ex site conservation of biodiversity.
(C) in site conservation by sacred groves.
(D) in site cryo-conservation of biodiversity
Practice more questions from Biodiversity and Conservation
Question 2
White Bengal tigers are protected in special settings in zoological parks. Tigers are maintained in Western Ghats. Easy
(i) How do these two approaches differ from each other? Mention the advantages of each one.
(ii) What is the significance of cryopreservation technique?
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Figure 8.W1
weity at is
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Objective: The enzyme pyruvate carboxylase is discovered in a bacterium that was thought not to contain it; in this case study, you'll see how researchers study and characterize the enzyme, and, ultimately, show how it fits into a metabolic pathway. Following purification of the PYC enzyme by avidin-Sepharose affinity chromatography, the investigators carried out several experiments to characterize the enzyme. The amino acid sequence of PYC from the methanogen was compared to other pyruvate carboxylase enzymes, and it was discovered that the lysine at position 534 is strictly conserved. Why is this the case? It is a covalent bond between the valerate part of biotin and the lysine side chain. Would this happen if the amino acid residue were not lysine?
Introduction: As one of the reactants in the first reaction of the citric acid cycle, oxaloacetate is an important cellular metabolite. The concentrations of oxaloacetate are tightly regulated. Different organisms employ different mechanisms to obtain oxaloacetate. In mammals and yeast, oxaloacetate is the product of the pyruvate carboxylase (PYC) reaction. In E. coli, the enzyme phosphoenolpyruvate carboxylase (PPC) provides oxaloacetate from phosphoenolpyruvate (PEP) obtained from glucose oxidation in the glycolytic pathway. If glucose is absent and E. coli is using acetate as a carbon source, the glyoxylate pathway serves to generate the needed oxaloacetate. Usually, an organism will employ PPC or PYC, but not both. Detectable levels of PYC in the methanogenic bacterium Methanobacterium thermautotrophicum had previously not been found, and since PPC had been detected, it was believed that M. thermautotrophicum did not possess PYC. However, in the case described here, microbiologists found that if they added biotin to cultures of the methanogenic bacterium, pyruvate carboxylase activity could be detected. This was a surprising finding, especially since it is known that the methanogen can synthesize its own biotin. However, having identified the presence of the PYC enzyme, the investigators set out to isolate, purify, and characterize the enzyme. Purification of the PYC was rather straightforward since the enzyme is soluble and hydrophilic. In addition, the investigators were able to make use of the protein avidin, which binds to biotin with high affinity and specificity.
Question 3
If there is a homozygous dominant male and a heterozygous female what is the percent of having offspring without dimples? (Punnett square)
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| Question Text | Assertion (A): Sacred groves are highly protected. Reason (R): They are of religious importance to the communities. (A) Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A). (B) Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A). (C) Assertion (A) is true but reason (R) is false. (D) Assertion (A) is false but reason (R) is true. |
| Updated On | Dec 23, 2022 |
| Topic | Biodiversity and Conservation |
| Subject | Biology |
| Class | Class 12 |
| Answer Type | Text solution:1 Video solution: 1 |
| Upvotes | 240 |
| Avg. Video Duration | 2 min |
