MCQ
Which one is a biofertilizer:
- ANPK mixture
- BRhizobia in legume roots
- CRhizobia in farmyard manure
- DGreen manure
Explanation:
All cyanophyceae member's are biofertilizers because they has fixing of NZ e.g. Nostoc. Rebulla, Rhizobia etc.
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| List $I$ | List $II$ |
| $A$. Frederick Griffith | $I$. Genetic code |
| $B$. Francois Jacob and Jacque Monod | $II$. Semi-conservative mode of DNA replication |
| $C$. Har Gobind Khorana | $III$. Transformation |
| $D$. Meselson and Stahl | $IV$. Lac operon |
Choose the correct answer from the options given below:
$I.$ Methanogenic bacteria are commonly found in the anaerobic sludge formed during sewage treatment
$II.$ These bacteria are also occur in rumen of the cattle where they act upon cellulosic material to breakdown cellulose
$III.$ They play a very important role in the nutrition of cattle by digesting cellulosic material
Which of the statement given above are correct?
Assertion $A$: Endometrium is necessary for implantation of blastocyst.
Reason $R$: In the absence of fertilization, the corpus luteum degenerates that causes disintegration of endometrium.
In the light of the above statements, choose the correct answer from the options given below: