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[A] : Aspergillus is used as bioindicato...

[A] : Aspergillus is used as bioindicator .
[R] : Aspergillus niger is sensitive to some trace elements .

A

If both A and R are true and R is the correct explanation of A

B

If both A and R are true but R is not the correct explanation of A

C

If A is true and R is false

D

If both A and R are false

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A class of problems that requires one to use permutations and combinations for computing probability has at its heart notion of sets and subsets. They are generally an abstract formulation of some concrete situation and require the application of counting techniques. A is a set containing 10 elements. A subset P_(1) of A is chosen and the set A is chosen and the set A is reconstructed by replacing the elements of P_(1) . A subset P_(2) of A is chosen and again the set A is reconstructed by replacing the elements of P_(2) . This process is continued by choosing subsets P_(1), P_(2), ... P_(10) . The probability that P_(i)capP_(j)=phi" "AA" "i nej,i,j=1,2,....,10 is

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TRUEMEN BIOLOGY ENGLISH-Fungi -ASSERTION AND REASON
  1. [A] : Heterotrophs may be free living or symbiotic . [R] : They form...

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  2. [A] : Rusts and smuts are club fungi that parasitize cereal crops . ...

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  3. Assertion : The fungi are widespread in distribution and they even liv...

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  4. [A] : Symbiosis is also furnished by mycorrhiza . [R] : In Mycorrhiz...

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  5. [A] : Phytoalexins are formed as a result of mixing of auxins and gi...

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  6. [A] : Zygospore fungi produce spores within sporangia . [R] : During...

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  7. [A] : Club fungi reproduce sexually . [R] : In club fungi , dikaryot...

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  8. [A] : The sterile portion of sporangium in Mucor is called columella ....

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  9. [A] : Fungi are thallophyta . [R] : Cell wall of fungi is made up of...

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  10. [A] : Fungi are either saprobes or parasitic . [R] : Fungi posses ha...

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  11. [A] : Aspergillus is used as bioindicator . [R] : Aspergillus niger ...

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  12. [A] : Rhizopus contains two types of hyphae . [R] : The unbranched h...

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  13. [A] : Puccinia graminis is autoecious . [R] : It complete its life c...

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  14. [A] : Schizosaccharomyces is also called the fission yeast . [R] : S...

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  15. [A] : Ascomycetes and basidiomycetes are septate fungi . [R] : The h...

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  16. [A] : Myxomycetes are not true fungi . [R] : Myxomycetes possess cha...

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  17. [A] : Aflatoxins are produced by fungus . [R] : Aflatoxins are carc...

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  18. [A] : Amanita is called toadstools . [R] : Amanita is a poisonous fu...

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  19. [A] : Yeast are used in baking industry . [R] : CO(2) produced durin...

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  20. [A] : Foliose lichens show similarity with dicot leaves [R] : They b...

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