• 2022-06-06 问题

    Which of the following hormones can replace vernalisation? A: auxin B: cytokinin C: gibberellins D: Ethylene

    Which of the following hormones can replace vernalisation? A: auxin B: cytokinin C: gibberellins D: Ethylene

  • 2022-07-27 问题

    植物生长过程中顶端优势的形成与( )物质有关。 A: ABA B: GA C: Auxin D: JA

    植物生长过程中顶端优势的形成与( )物质有关。 A: ABA B: GA C: Auxin D: JA

  • 2022-06-07 问题

    Which of the following hormones increases in acute stress and decreases in chronic stress ( ) A: Insulin B: Glucagon C: Auxin D: Prolactin E: Beta endorphin

    Which of the following hormones increases in acute stress and decreases in chronic stress ( ) A: Insulin B: Glucagon C: Auxin D: Prolactin E: Beta endorphin

  • 2022-10-27 问题

    培养基中常添加何种生长调节剂,以促进植株生根?() A: 奥克辛(Auxin) B: 激勃素(GA) C: 细胞分裂素(Cytokinin) D: 乙烯(Ethylene)

    培养基中常添加何种生长调节剂,以促进植株生根?() A: 奥克辛(Auxin) B: 激勃素(GA) C: 细胞分裂素(Cytokinin) D: 乙烯(Ethylene)

  • 2022-06-27 问题

    组织培养中,常添加于培养基内,以促进植株生根的是() A: 奥克辛(Auxin) B: 激勃素(GA) C: 细胞分裂素 D: 乙烯

    组织培养中,常添加于培养基内,以促进植株生根的是() A: 奥克辛(Auxin) B: 激勃素(GA) C: 细胞分裂素 D: 乙烯

  • 2022-06-27 问题

    组织培养中,常添加于培养基内,以促进植株生根的是() A: 奥克辛(Auxin) B: 激勃素(GA) C: 细胞分裂素 D: 乙烯

    组织培养中,常添加于培养基内,以促进植株生根的是() A: 奥克辛(Auxin) B: 激勃素(GA) C: 细胞分裂素 D: 乙烯

  • 2022-05-31 问题

    Coleoptile is the phenomenon due to which stems and shoots of plants bend towards a source of light. This is due to . A: Availability of the necessary amount of warmth to tips. B: Greater light availability. C: More auxin on the shaded side. D: Greater oxygen availability.

    Coleoptile is the phenomenon due to which stems and shoots of plants bend towards a source of light. This is due to . A: Availability of the necessary amount of warmth to tips. B: Greater light availability. C: More auxin on the shaded side. D: Greater oxygen availability.

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