QUESTION NO 1 A

DICOT .STEM 

1 vascular bundles limited in number and arranged in the form of a ring

2.xylem vessels p[olygonal ..................hence dicot

3.xylem endarch 

4.conjoint open vacular bunble ............hence stem

 

MONOCOT STEM 

1. xylem endarch 

2 .conjoint open vascular bundle .......hence stem 

3.xylem bundles numerous and scattered

4. xylem vessels rounded .................hence monocot 

MONOCOT ROOT 

1,xylem bundles numerous

2. pith large 

 3.xylem vessels rounded ..............hence monocot 

4.xylem exarch 

5.radial vascular bundle ...hence root

 

question 2  B,C

B . microscopic 

1.FERN PROTHALLUS- Green heart shaped gametophyte 

2. SPIROGYRA - filamentous multicellular green algae with spiral chloroplast 

3.RHIZOPUS -  branched aseptate ,coenocytic hyphae with sporangiophores .

B MACROSCOPIC 

1.SARGASSUM - Brown algae with receptacles and air bladders

2. PINUS FEMALE CONE - larger than male cone , megasporophylls arranged spirally around cone axis 

3. PINUS MALE CONE - smaller than female cone .grouped in to clusters 

c PHOTOGRAPHS 

C . BIOREACTOR - large vessels in which  raw materials are biologically converted in to specific products 

c- BT COTTON- transgenic cotton having cry gene 

c. CLONING VECTOR - used to transfer foreign DNA fragments in to host cell 

QUESTION 3 D 

 METAPHASE -chromosomes arranged at the equator 

ANAPHASE - daughter chromosomes move to opposite poles 

.

QIUESTION  4 E 

PAPER CHROMATOGRAPHY - to seperate photosynthetic pigments using paper chromatography 

2. to demonstrate evolution of oxygen during photosynthesis .

QUESTION  5  F 

 

CALYX -5 sepals ,gamosepalous  ,persistent 

COROLLA - 5 petals  ,gamopetalous ,valvate 

GYNOECIUM - bicarpellary ,syncarpous ,superior ovary 

QUESTION  6 G

 COMMENSALISM -  positive interaction .epiphyte benefitted .host neither benefitted nor harmed 

MUTUALISM - positive interaction , both the partners get benefitted 

PARASITISM - parasite benefitted and host harmed 

QUESTION  7 H