Concept explainers
To determine: The value of research on genes that controls flowering to the society.
Concept introduction: Flower is a reproductive part of a modified thick shoot of an
To determine: The value of the research on genes that controls seed germination to the society.
Concept introduction: Flower is a reproductive part of a modified thick shoot of an angiosperm plant. The flowering plants generate offspring through a process called reproduction. The reproduction in plants can be sexual or asexual. Sexual reproduction is a bi-parental process (both male and female gametes are involved), whereas asexual reproduction is a uni-parental process (only one parent plant is involved).
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Chapter 37 Solutions
Biology (MindTap Course List)
- In double fertilization, one sperm fertilizes cells in the ovule; the egg cells in the pollen tube; cells in the ovule the egg; another egg the egg; cells in the ovule the egg; another sperm to become the embryo, and a second sperm fertilizes to become the endosperm.arrow_forwardWhat is the evolutionary advantage for a flowering plant to be pollinated with pollen from a different individual plant (of the same species)?arrow_forwardthe evolutionary advantage of seed, pollen, flowers, and fruit?arrow_forward
- Which of the following is not a component of a flower?a. sepalb. stamenc. carpeld. coleoptilearrow_forwardHow do plants regulate flowering ?(explain the Molecular mechanism of flowering )arrow_forwardWhich of the following sequence represents the events that take place in the development of a fruit? -pollination, fertilization, germination of pollen tubes, ovule matures, embryo forms. -pollination, double fertilization, ovule matures, embryo forms within the seed, ovary matures around the seeds. -pollination, fertilization, embryo development within the seed, ovary matures around the seeds. -pollination, germination of pollen, endosperm, ovule. -pollination, endosperm formation, embryo development within the seed, ovule matures.arrow_forward
- what are the flaws ? Plants reproduce in a pattern known as alternation of generations. A haploid gametophyte produces gametes through mitosis. The gametes fuse to form a zygote, which then grows into a diploid sporophyte. The sporophyte produces spores through meiosis, which then grow into a gametophyte and start the process over. Flowers are how angiosperms reproduce. A whorl of sepals (corolla) is at the base of the flower, followed by a whorl of petals (calyx). Inside the flower is a female organ known as a carpel and it is made of a stigma, style, and ovary. The male organ is the stamen and it is made of an anther and filament. Pollen being transferred to the style is known as pollination. Once the pollen travels down the style and reaches the egg, fertilization happens when sperm meets egg. Then, the fertilized egg and surrounding tissue develops into a seed. A seed is protected by a seed coat and contains endosperm and an embryo. The endosperm grows into a new plant while…arrow_forwardUsing just the 'ABC model' of floral development what would you need to change in terms of genes or gene expression to get male only flowers, but still have 3 different floral whorls in total? Then what would you need to change to get female flowers and again have three different floral whorls in total?arrow_forwardWhat is the most likely consequence of a mutation that would cause sporopollenin to degrade quickly right after it is synthesized? -A reduction in the ability of pollen and spores to survive intact and disperse to new areas. -A reduction in the ability of pollinators to detect and transfer pollen grains to a stigma. -A decrease in the number of sperm that can be produced. -A decrease in the ability of the pollen grain or spore to open when a suitable location is found. -A reduction in the ability of the integument of an ovule to develop into a seed coat.arrow_forward
- Plants and animals usually battle each other; describe why and how this occurs. Once animal-pollinated flowers evolved, a new type of plant–animal interaction was possible; describe it. How is it possible for a mutation in aplant to be beneficial for both the plant and for an animal?arrow_forwardIn flowers, the structures that produce male gametophytes are called _______ ;the strcutures that produce female gametophytes are called _______ . a. pollen grains; flowers c. anthers; stigma b. stamen; carpels d. megaspores; microsporesarrow_forwardExplain how varying amounts of light and darkness induce flowering.arrow_forward
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