(d) In many members of basidiomycetes; cell division is accompanied by clamp connection. These are bridge (hook) like connections. They function as bypass hyphae through which nuclei "migrate to make all of mycelium dikaryotic.
NCERT Page-24 / N-18
Biological Classification
267272
Plasmogamy is the fusion of
1 two haploid cells including their nuclei.
2 two haploid cells without nuclear fusion.
3 sperm and egg.
4 sperm and two polar nuclei.
Explanation:
(b) Plasmogamy is the first stage of sexual reproduction in which the cytoplasm of two sex cells fuse with each other. The nuclei of sex cells come close to each other but do not fuse. Thus, the resulting cell becomes binucleate or dikaryon.
NCERT Page-23/N-17
Biological Classification
267273
Fungi are filamentous with the exception of" $X$ " which is unicellular. Identify $X$.
1 Yeast
2 Albugo
3 Mucor
4 Lichen
Explanation:
(a) Yeast being a unicellular fungus does not show filamentous nature. It is a microscopic fungus consisting of a single oval cell that reproduces by budding.
NCERT Page-22 / N-17
Biological Classification
267274
Yeast is not included in protozoans but are placed fungi because
1 it has no chlorophyll.
2 yeast reproduce by fungal methods
3 it has eukaryotic organization.
4 cell wallis made up of cellulose and reserve food material is starch.
Explanation:
(b) The plant body of fungi typically consists of branched and filamentous hyphae, which form a net like structure, known as mycelium fungi reproduce asexually by fragmentation, budding or producing spores.
(d) In many members of basidiomycetes; cell division is accompanied by clamp connection. These are bridge (hook) like connections. They function as bypass hyphae through which nuclei "migrate to make all of mycelium dikaryotic.
NCERT Page-24 / N-18
Biological Classification
267272
Plasmogamy is the fusion of
1 two haploid cells including their nuclei.
2 two haploid cells without nuclear fusion.
3 sperm and egg.
4 sperm and two polar nuclei.
Explanation:
(b) Plasmogamy is the first stage of sexual reproduction in which the cytoplasm of two sex cells fuse with each other. The nuclei of sex cells come close to each other but do not fuse. Thus, the resulting cell becomes binucleate or dikaryon.
NCERT Page-23/N-17
Biological Classification
267273
Fungi are filamentous with the exception of" $X$ " which is unicellular. Identify $X$.
1 Yeast
2 Albugo
3 Mucor
4 Lichen
Explanation:
(a) Yeast being a unicellular fungus does not show filamentous nature. It is a microscopic fungus consisting of a single oval cell that reproduces by budding.
NCERT Page-22 / N-17
Biological Classification
267274
Yeast is not included in protozoans but are placed fungi because
1 it has no chlorophyll.
2 yeast reproduce by fungal methods
3 it has eukaryotic organization.
4 cell wallis made up of cellulose and reserve food material is starch.
Explanation:
(b) The plant body of fungi typically consists of branched and filamentous hyphae, which form a net like structure, known as mycelium fungi reproduce asexually by fragmentation, budding or producing spores.
(d) In many members of basidiomycetes; cell division is accompanied by clamp connection. These are bridge (hook) like connections. They function as bypass hyphae through which nuclei "migrate to make all of mycelium dikaryotic.
NCERT Page-24 / N-18
Biological Classification
267272
Plasmogamy is the fusion of
1 two haploid cells including their nuclei.
2 two haploid cells without nuclear fusion.
3 sperm and egg.
4 sperm and two polar nuclei.
Explanation:
(b) Plasmogamy is the first stage of sexual reproduction in which the cytoplasm of two sex cells fuse with each other. The nuclei of sex cells come close to each other but do not fuse. Thus, the resulting cell becomes binucleate or dikaryon.
NCERT Page-23/N-17
Biological Classification
267273
Fungi are filamentous with the exception of" $X$ " which is unicellular. Identify $X$.
1 Yeast
2 Albugo
3 Mucor
4 Lichen
Explanation:
(a) Yeast being a unicellular fungus does not show filamentous nature. It is a microscopic fungus consisting of a single oval cell that reproduces by budding.
NCERT Page-22 / N-17
Biological Classification
267274
Yeast is not included in protozoans but are placed fungi because
1 it has no chlorophyll.
2 yeast reproduce by fungal methods
3 it has eukaryotic organization.
4 cell wallis made up of cellulose and reserve food material is starch.
Explanation:
(b) The plant body of fungi typically consists of branched and filamentous hyphae, which form a net like structure, known as mycelium fungi reproduce asexually by fragmentation, budding or producing spores.
(d) In many members of basidiomycetes; cell division is accompanied by clamp connection. These are bridge (hook) like connections. They function as bypass hyphae through which nuclei "migrate to make all of mycelium dikaryotic.
NCERT Page-24 / N-18
Biological Classification
267272
Plasmogamy is the fusion of
1 two haploid cells including their nuclei.
2 two haploid cells without nuclear fusion.
3 sperm and egg.
4 sperm and two polar nuclei.
Explanation:
(b) Plasmogamy is the first stage of sexual reproduction in which the cytoplasm of two sex cells fuse with each other. The nuclei of sex cells come close to each other but do not fuse. Thus, the resulting cell becomes binucleate or dikaryon.
NCERT Page-23/N-17
Biological Classification
267273
Fungi are filamentous with the exception of" $X$ " which is unicellular. Identify $X$.
1 Yeast
2 Albugo
3 Mucor
4 Lichen
Explanation:
(a) Yeast being a unicellular fungus does not show filamentous nature. It is a microscopic fungus consisting of a single oval cell that reproduces by budding.
NCERT Page-22 / N-17
Biological Classification
267274
Yeast is not included in protozoans but are placed fungi because
1 it has no chlorophyll.
2 yeast reproduce by fungal methods
3 it has eukaryotic organization.
4 cell wallis made up of cellulose and reserve food material is starch.
Explanation:
(b) The plant body of fungi typically consists of branched and filamentous hyphae, which form a net like structure, known as mycelium fungi reproduce asexually by fragmentation, budding or producing spores.
