Mesarch xylem are commonly found in fern. It develops in each direction from the center of the primary xylem's strand. Ferns stems and leaves have a mesarch form of development.
Punjab MET-1999
Plant kingdom
259397
Which of the following propagates through leaf-tip?
1 Walking fern
2 Sprout-leaf plant
3 Marchantia
4 Moss
Explanation:
The scientific name of the walking fern is Adiantum caudatum are called 'walking fern' due to the fact that new plantlets grow when arching leaves of the fern touch the ground. The walking effect is due to vegetative reproduction.
CMC Ludhiana-2009 / JCECE-2009
Plant kingdom
259399
Genera like Selaginella and salvinia produce two kinds of spores. Such plants are known as:
1 Heterosporous
2 Homosorus
3 Heterosorus
4 Homosporous
Explanation:
A plant that produces two types of spores that vary in size and shape is called heterosporous spores. Plants like Selaginella and Salvinia produce two kinds of spore (Mircospores and Macrospores). Most of the pteridophytes produce single type of spores is called homosporous.
259439
Sometimes, the fern plant arises from fern prothallus without fertilisation. This is an example of
1 apospory
2 apogamy
3 parthenocarpy
4 gametogenesis
Explanation:
The apogamy is the process of formation of sporophyte from a gametophytic cell other than egg without fertilization. The prothallus is the gametophyte plant body of plants, like ferns.
Mesarch xylem are commonly found in fern. It develops in each direction from the center of the primary xylem's strand. Ferns stems and leaves have a mesarch form of development.
Punjab MET-1999
Plant kingdom
259397
Which of the following propagates through leaf-tip?
1 Walking fern
2 Sprout-leaf plant
3 Marchantia
4 Moss
Explanation:
The scientific name of the walking fern is Adiantum caudatum are called 'walking fern' due to the fact that new plantlets grow when arching leaves of the fern touch the ground. The walking effect is due to vegetative reproduction.
CMC Ludhiana-2009 / JCECE-2009
Plant kingdom
259399
Genera like Selaginella and salvinia produce two kinds of spores. Such plants are known as:
1 Heterosporous
2 Homosorus
3 Heterosorus
4 Homosporous
Explanation:
A plant that produces two types of spores that vary in size and shape is called heterosporous spores. Plants like Selaginella and Salvinia produce two kinds of spore (Mircospores and Macrospores). Most of the pteridophytes produce single type of spores is called homosporous.
259439
Sometimes, the fern plant arises from fern prothallus without fertilisation. This is an example of
1 apospory
2 apogamy
3 parthenocarpy
4 gametogenesis
Explanation:
The apogamy is the process of formation of sporophyte from a gametophytic cell other than egg without fertilization. The prothallus is the gametophyte plant body of plants, like ferns.
Mesarch xylem are commonly found in fern. It develops in each direction from the center of the primary xylem's strand. Ferns stems and leaves have a mesarch form of development.
Punjab MET-1999
Plant kingdom
259397
Which of the following propagates through leaf-tip?
1 Walking fern
2 Sprout-leaf plant
3 Marchantia
4 Moss
Explanation:
The scientific name of the walking fern is Adiantum caudatum are called 'walking fern' due to the fact that new plantlets grow when arching leaves of the fern touch the ground. The walking effect is due to vegetative reproduction.
CMC Ludhiana-2009 / JCECE-2009
Plant kingdom
259399
Genera like Selaginella and salvinia produce two kinds of spores. Such plants are known as:
1 Heterosporous
2 Homosorus
3 Heterosorus
4 Homosporous
Explanation:
A plant that produces two types of spores that vary in size and shape is called heterosporous spores. Plants like Selaginella and Salvinia produce two kinds of spore (Mircospores and Macrospores). Most of the pteridophytes produce single type of spores is called homosporous.
259439
Sometimes, the fern plant arises from fern prothallus without fertilisation. This is an example of
1 apospory
2 apogamy
3 parthenocarpy
4 gametogenesis
Explanation:
The apogamy is the process of formation of sporophyte from a gametophytic cell other than egg without fertilization. The prothallus is the gametophyte plant body of plants, like ferns.
Mesarch xylem are commonly found in fern. It develops in each direction from the center of the primary xylem's strand. Ferns stems and leaves have a mesarch form of development.
Punjab MET-1999
Plant kingdom
259397
Which of the following propagates through leaf-tip?
1 Walking fern
2 Sprout-leaf plant
3 Marchantia
4 Moss
Explanation:
The scientific name of the walking fern is Adiantum caudatum are called 'walking fern' due to the fact that new plantlets grow when arching leaves of the fern touch the ground. The walking effect is due to vegetative reproduction.
CMC Ludhiana-2009 / JCECE-2009
Plant kingdom
259399
Genera like Selaginella and salvinia produce two kinds of spores. Such plants are known as:
1 Heterosporous
2 Homosorus
3 Heterosorus
4 Homosporous
Explanation:
A plant that produces two types of spores that vary in size and shape is called heterosporous spores. Plants like Selaginella and Salvinia produce two kinds of spore (Mircospores and Macrospores). Most of the pteridophytes produce single type of spores is called homosporous.
259439
Sometimes, the fern plant arises from fern prothallus without fertilisation. This is an example of
1 apospory
2 apogamy
3 parthenocarpy
4 gametogenesis
Explanation:
The apogamy is the process of formation of sporophyte from a gametophytic cell other than egg without fertilization. The prothallus is the gametophyte plant body of plants, like ferns.
