259514
Small specialised roots called coralloid roots are associated with $\mathbf{N}_{2}$-fixing cyanobacteria in
1 Pinus
2 Cedrus
3 Ginkgo
4 Cycas
Explanation:
Cycas is perennial, slow growing evergreen plant and is referred as living fossil. Coralloid roots are special types of roots developed from the normal roots. These roots are negatively geotropic possess nitrogen fixing algae helping in $\mathrm{N}_{2}$ fixation.
TS EAMCET-08.05.2019 Shift-I
Plant kingdom
259516
Mycorrhiza is a relationship of roots of Pinus and;
1 fungus
2 alga
3 bacteria
4 ants
Explanation:
Mycorrhiza is a symbiotic relationship between the roots of plant, such as pinus and fungi The term mycorrhiza refers to the role of the fungus in the plant's rhizosphere, its roots system. Mycorrhiza plays an important role in plant nutrition, soil biology \& soil chemistry.
NEET-2019 / BVP-2001
Plant kingdom
259519
Seed of Pinus possesses:
1 parent sporophyte as seed coat, perisperm etc.
2 gametophyte like endosperm
3 future saporophyte like embryo
4 all of the above
Explanation:
Seed of pinus is perisperm diploid (2n). The wing of seed is thin, membranous diploid $(2 n)$ and develops jointly from the basal upper surface (adaxial) of ovuliferous scale and outer layer of integument of the ovule. Seed shows the three generation-parent sporophyte, gametophyte \& future sporophyte. Seed is a matured ovule. The matured ovule consists of a seed coat, megagametophyte \& embryo.
J and K CET-2002
Plant kingdom
259521
Mycorrhiza exhibits the phenomenon of :
1 antagonism
2 endemism
3 parasitism
4 symbiosis
Explanation:
The mycorrhiza is a symbiotic relationship that exhibits the phenomenon of mutualism or symbiosis. Symbiosis is a relationship or interaction between two or more species that share a common habitat.
259514
Small specialised roots called coralloid roots are associated with $\mathbf{N}_{2}$-fixing cyanobacteria in
1 Pinus
2 Cedrus
3 Ginkgo
4 Cycas
Explanation:
Cycas is perennial, slow growing evergreen plant and is referred as living fossil. Coralloid roots are special types of roots developed from the normal roots. These roots are negatively geotropic possess nitrogen fixing algae helping in $\mathrm{N}_{2}$ fixation.
TS EAMCET-08.05.2019 Shift-I
Plant kingdom
259516
Mycorrhiza is a relationship of roots of Pinus and;
1 fungus
2 alga
3 bacteria
4 ants
Explanation:
Mycorrhiza is a symbiotic relationship between the roots of plant, such as pinus and fungi The term mycorrhiza refers to the role of the fungus in the plant's rhizosphere, its roots system. Mycorrhiza plays an important role in plant nutrition, soil biology \& soil chemistry.
NEET-2019 / BVP-2001
Plant kingdom
259519
Seed of Pinus possesses:
1 parent sporophyte as seed coat, perisperm etc.
2 gametophyte like endosperm
3 future saporophyte like embryo
4 all of the above
Explanation:
Seed of pinus is perisperm diploid (2n). The wing of seed is thin, membranous diploid $(2 n)$ and develops jointly from the basal upper surface (adaxial) of ovuliferous scale and outer layer of integument of the ovule. Seed shows the three generation-parent sporophyte, gametophyte \& future sporophyte. Seed is a matured ovule. The matured ovule consists of a seed coat, megagametophyte \& embryo.
J and K CET-2002
Plant kingdom
259521
Mycorrhiza exhibits the phenomenon of :
1 antagonism
2 endemism
3 parasitism
4 symbiosis
Explanation:
The mycorrhiza is a symbiotic relationship that exhibits the phenomenon of mutualism or symbiosis. Symbiosis is a relationship or interaction between two or more species that share a common habitat.
NEET Test Series from KOTA - 10 Papers In MS WORD
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Plant kingdom
259514
Small specialised roots called coralloid roots are associated with $\mathbf{N}_{2}$-fixing cyanobacteria in
1 Pinus
2 Cedrus
3 Ginkgo
4 Cycas
Explanation:
Cycas is perennial, slow growing evergreen plant and is referred as living fossil. Coralloid roots are special types of roots developed from the normal roots. These roots are negatively geotropic possess nitrogen fixing algae helping in $\mathrm{N}_{2}$ fixation.
TS EAMCET-08.05.2019 Shift-I
Plant kingdom
259516
Mycorrhiza is a relationship of roots of Pinus and;
1 fungus
2 alga
3 bacteria
4 ants
Explanation:
Mycorrhiza is a symbiotic relationship between the roots of plant, such as pinus and fungi The term mycorrhiza refers to the role of the fungus in the plant's rhizosphere, its roots system. Mycorrhiza plays an important role in plant nutrition, soil biology \& soil chemistry.
NEET-2019 / BVP-2001
Plant kingdom
259519
Seed of Pinus possesses:
1 parent sporophyte as seed coat, perisperm etc.
2 gametophyte like endosperm
3 future saporophyte like embryo
4 all of the above
Explanation:
Seed of pinus is perisperm diploid (2n). The wing of seed is thin, membranous diploid $(2 n)$ and develops jointly from the basal upper surface (adaxial) of ovuliferous scale and outer layer of integument of the ovule. Seed shows the three generation-parent sporophyte, gametophyte \& future sporophyte. Seed is a matured ovule. The matured ovule consists of a seed coat, megagametophyte \& embryo.
J and K CET-2002
Plant kingdom
259521
Mycorrhiza exhibits the phenomenon of :
1 antagonism
2 endemism
3 parasitism
4 symbiosis
Explanation:
The mycorrhiza is a symbiotic relationship that exhibits the phenomenon of mutualism or symbiosis. Symbiosis is a relationship or interaction between two or more species that share a common habitat.
259514
Small specialised roots called coralloid roots are associated with $\mathbf{N}_{2}$-fixing cyanobacteria in
1 Pinus
2 Cedrus
3 Ginkgo
4 Cycas
Explanation:
Cycas is perennial, slow growing evergreen plant and is referred as living fossil. Coralloid roots are special types of roots developed from the normal roots. These roots are negatively geotropic possess nitrogen fixing algae helping in $\mathrm{N}_{2}$ fixation.
TS EAMCET-08.05.2019 Shift-I
Plant kingdom
259516
Mycorrhiza is a relationship of roots of Pinus and;
1 fungus
2 alga
3 bacteria
4 ants
Explanation:
Mycorrhiza is a symbiotic relationship between the roots of plant, such as pinus and fungi The term mycorrhiza refers to the role of the fungus in the plant's rhizosphere, its roots system. Mycorrhiza plays an important role in plant nutrition, soil biology \& soil chemistry.
NEET-2019 / BVP-2001
Plant kingdom
259519
Seed of Pinus possesses:
1 parent sporophyte as seed coat, perisperm etc.
2 gametophyte like endosperm
3 future saporophyte like embryo
4 all of the above
Explanation:
Seed of pinus is perisperm diploid (2n). The wing of seed is thin, membranous diploid $(2 n)$ and develops jointly from the basal upper surface (adaxial) of ovuliferous scale and outer layer of integument of the ovule. Seed shows the three generation-parent sporophyte, gametophyte \& future sporophyte. Seed is a matured ovule. The matured ovule consists of a seed coat, megagametophyte \& embryo.
J and K CET-2002
Plant kingdom
259521
Mycorrhiza exhibits the phenomenon of :
1 antagonism
2 endemism
3 parasitism
4 symbiosis
Explanation:
The mycorrhiza is a symbiotic relationship that exhibits the phenomenon of mutualism or symbiosis. Symbiosis is a relationship or interaction between two or more species that share a common habitat.