MCQ
Which of the following statements is incorrect?
- AVIrolds lack a protein coat
- BViruses are obligate parasites
- ✓Infective constituent in viruses is the protein coat
- DPrions consist of abnormally folded proteins
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| Column $-I$ | Column $-II$ |
| $(A)$ Pachytene | $(i)$ Pairing of homologous chromosomes |
| $(B)$ Metaphase$-I$ | $(ii)$ Terminalisation ofchiasmata |
| $(C)$ Diakinesis | $(iii)$ Crossing-over takes place |
| $(D)$ Zygotene | $(iv)$ Chromosomes align at equatorial plate |
$I.$ Diploblastic
$II.$ Acoelomate
$III.$ Radial symmetry
$\begin{array}{|p{0.35\linewidth}|p{0.55\linewidth}|} \hline Column\,\,-\,\,I & Column\,\,-\,\,II \\ \hline 1.\,\,Smooth\,\,muscles & p.\,\,Hard\,\,and\,\,not\,\,pliable\,\,ground\,\,substance \\ \hline 2.\,\,Skeletal\,\,muscles & q.\,\,Blood\,\,vessel\,\,stomach\,\,intestine \\ \hline 3.\,\,Bone & r.\,\,Condroblast \\ \hline 4.\,\,Cartilage & s.\,\,A-band \\ \hline \end{array}$
| $List-I$ | $List - II$ |
| $(a)$ Spirogyra | $(i)$ Dominant diploid sporophyte vascular plant, with highly reduced male or female gametophyte |
| $(b)$ Fern | $(ii)$ Dominant haploid free-living gametophyte |
| $(c)$ Funaria | $(iii)$ Dominant diploid sporophyte alternating with reduced gametophyte called prothallus |
| $(d)$ Cycas | $(iv)$ Dominant haploid leafy gametophyte alternating with partially dependent |
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