341759
In the embryos of a typical dicot and grass, true homologous structures are
1 Hypocotyl and radicle
2 Cotyledons and scutellum
3 Coleoptile and scutellum
4 Coleorhiza and coleoptile
Explanation:
Cotyledon and Scutellum. In the grass family the cotyledon is called scutellum that is situated towards one side (lateral) of the embryonal axis.
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS
341760
In the embryos of a typical dicot and a grass, true homologous structures are:
1 Coleorhiza and coleoptile
2 Coleoptile and scutellum
3 Cotyledons and scutellum
4 Hypocotyl and radicle.
Explanation:
In monocot, the cotyledon is called scutellum.
NCERT Exemplar
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS
341761
What will be ploidy of endosperm and zygote if the cross is made between tetraploid male with diploid female plant
1 3n, 4n
2 4n, 3n
3 4n, 4n
4 3n, 3n
Explanation:
Tetraploid male plant produced diploid (2n) male gamete, and diploid female plant produced haploid egg (n) male gamete (2n) + polar nuclei 2n = 4n (endosperm) male gamete (2n) + egg (n) = 3n (zygote)
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS
341762
Morphologically and physiologically specialized outer layers of endosperm of cereals constitute :
1 Tapetel tissue
2 Perisperm
3 Aleurone layers
4 Chlazosperm
Explanation:
Morphologically and physiologically specialized outer layers of endosperm of cereals constitute : Aleurone layer
341759
In the embryos of a typical dicot and grass, true homologous structures are
1 Hypocotyl and radicle
2 Cotyledons and scutellum
3 Coleoptile and scutellum
4 Coleorhiza and coleoptile
Explanation:
Cotyledon and Scutellum. In the grass family the cotyledon is called scutellum that is situated towards one side (lateral) of the embryonal axis.
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS
341760
In the embryos of a typical dicot and a grass, true homologous structures are:
1 Coleorhiza and coleoptile
2 Coleoptile and scutellum
3 Cotyledons and scutellum
4 Hypocotyl and radicle.
Explanation:
In monocot, the cotyledon is called scutellum.
NCERT Exemplar
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS
341761
What will be ploidy of endosperm and zygote if the cross is made between tetraploid male with diploid female plant
1 3n, 4n
2 4n, 3n
3 4n, 4n
4 3n, 3n
Explanation:
Tetraploid male plant produced diploid (2n) male gamete, and diploid female plant produced haploid egg (n) male gamete (2n) + polar nuclei 2n = 4n (endosperm) male gamete (2n) + egg (n) = 3n (zygote)
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS
341762
Morphologically and physiologically specialized outer layers of endosperm of cereals constitute :
1 Tapetel tissue
2 Perisperm
3 Aleurone layers
4 Chlazosperm
Explanation:
Morphologically and physiologically specialized outer layers of endosperm of cereals constitute : Aleurone layer
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BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS
341759
In the embryos of a typical dicot and grass, true homologous structures are
1 Hypocotyl and radicle
2 Cotyledons and scutellum
3 Coleoptile and scutellum
4 Coleorhiza and coleoptile
Explanation:
Cotyledon and Scutellum. In the grass family the cotyledon is called scutellum that is situated towards one side (lateral) of the embryonal axis.
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS
341760
In the embryos of a typical dicot and a grass, true homologous structures are:
1 Coleorhiza and coleoptile
2 Coleoptile and scutellum
3 Cotyledons and scutellum
4 Hypocotyl and radicle.
Explanation:
In monocot, the cotyledon is called scutellum.
NCERT Exemplar
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS
341761
What will be ploidy of endosperm and zygote if the cross is made between tetraploid male with diploid female plant
1 3n, 4n
2 4n, 3n
3 4n, 4n
4 3n, 3n
Explanation:
Tetraploid male plant produced diploid (2n) male gamete, and diploid female plant produced haploid egg (n) male gamete (2n) + polar nuclei 2n = 4n (endosperm) male gamete (2n) + egg (n) = 3n (zygote)
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS
341762
Morphologically and physiologically specialized outer layers of endosperm of cereals constitute :
1 Tapetel tissue
2 Perisperm
3 Aleurone layers
4 Chlazosperm
Explanation:
Morphologically and physiologically specialized outer layers of endosperm of cereals constitute : Aleurone layer
341759
In the embryos of a typical dicot and grass, true homologous structures are
1 Hypocotyl and radicle
2 Cotyledons and scutellum
3 Coleoptile and scutellum
4 Coleorhiza and coleoptile
Explanation:
Cotyledon and Scutellum. In the grass family the cotyledon is called scutellum that is situated towards one side (lateral) of the embryonal axis.
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS
341760
In the embryos of a typical dicot and a grass, true homologous structures are:
1 Coleorhiza and coleoptile
2 Coleoptile and scutellum
3 Cotyledons and scutellum
4 Hypocotyl and radicle.
Explanation:
In monocot, the cotyledon is called scutellum.
NCERT Exemplar
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS
341761
What will be ploidy of endosperm and zygote if the cross is made between tetraploid male with diploid female plant
1 3n, 4n
2 4n, 3n
3 4n, 4n
4 3n, 3n
Explanation:
Tetraploid male plant produced diploid (2n) male gamete, and diploid female plant produced haploid egg (n) male gamete (2n) + polar nuclei 2n = 4n (endosperm) male gamete (2n) + egg (n) = 3n (zygote)
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS
341762
Morphologically and physiologically specialized outer layers of endosperm of cereals constitute :
1 Tapetel tissue
2 Perisperm
3 Aleurone layers
4 Chlazosperm
Explanation:
Morphologically and physiologically specialized outer layers of endosperm of cereals constitute : Aleurone layer