MCQ
Fermentation is by
- AAll micro organism
- BAll fungi
- CAll bacteria
- ✓Some fungi and some bacteria
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$I.$ Ladybirds and dragonflies are used to get rid of aphids and mosquitoes
$II.$ The bacteria Bacillus thuringiensis $(B t)$ are used to control butterfly caterpillars
$III.$ Trichoderma sp. free living fungi, are present in root ecosystems where they act against several plant pathogens
$IV.$ Rhizobium is a symbiotic bacterium that lives in the stem of legumes
Which of the statements given above are correct?
Reason : No recessive individual are obtained in the monohybrid test cross.
$(I)$ Idli $(II)$ Dosa
$(III)$ Toddy $(IV)$ Cheese
| $(a)$ Homo habilis | $(i)$ $900\; \mathrm{cc}$ |
| $(b)$ Homo neanderthalensis | $(ii)$ $1350\; \mathrm{cc}$ |
| $(c)$ Homo erectus | $(iii)$ $650-800\; \mathrm{cc}$ |
| $(d)$ Homo sapiens | $(iv)$ $1400\; \mathrm{cc}$ |
Select the correct option.
$(a)\quad (b)\quad (c)\quad (d)$
$i$. Birth control pills are likely to cause cardiovascular problem
$ii$. A woman who substitutes or takes the place of the real mother to nurse to embryo is called surrogate mother
$iii$. Numerous children have been produced by in vitro fertilisation but with some abnormalities
$iv$. Woman plays a key role in the continuity of the family and human species
$v$. Foetal sex determination test should not be banned