Please describe the peripheral zone (PZ) genetic program maintains indeterminacy and allows the initiation of lateral primordia in shoot apical meristems.
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(a) Please describe the peripheral zone (PZ) genetic program maintains indeterminacy and allows the initiation of lateral primordia in shoot apical meristems.
(b) Explain how this genetic program has been used in compound leaves
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- Can you clearly type the answers to all the parts to this question please In shoot apical meristems, the peripheral zone (PZ) genetic program maintains indeterminacy and allows lateral primordia initiation. (a) Explain how the PZ genetic program control (1) meristem maintenance, (2) organ separation, and (3) organ differentiation/leaf primordia outgrowth using the following keywords: KNOX genes, cytokinins, gibberellin, auxin, CUC, and AS1. (b) Explain how this genetic program is used in the formation of compound leaves. (c) Please use KNOX PZ genetic module as an example to explain process homology during compound leaf evolution.Kindly provide 2 examples plants having "adaptations for twining" including (i) mechanical support (ii) transportation for root materials (iii) production of new plants Kindly sketch the diagramPlease answer the following parts: (a) Explain what Florigen is. (b) Explain how the floral stimulus, which originates in the minor veins of source leaves, has its effect in the shoot apical meristem. (c) Describe a classic experiment that demonstrated the existence of Florigen.
- Examine the shoot system of a mature plant (Coleus blumei). Identify the shoot tip, nodes, internodes, leaves, and axillary buds. Each unit of stem that consists of a leaf, axillary bud and internode is referred to as a phytomere. Note that axillary buds always occur above a leaf. Axillary buds give rise to branch shoots. Thus, branching in a shoot system is exogenous (of external origin). How does this compare to branching in a root system?Can you answer this question with both parts In shoot apical meristems, the peripheral zone (PZ) genetic program maintains indeterminacy and allows lateral primordia initiation. a. Explain how the PZ genetic program control (1) meristem maintenance, (2) organ separation, and (3) organ differentiation/leaf primordia outgrowth using the following keywords: KNOX genes, cytokinins, gibberellin, auxin, and AS1. b. Explain how this genetic program is used in the formation of compound leaves.Can you answer all the parts to this question please In shoot apical meristems, the peripheral zone (PZ) genetic program maintains indeterminacy and allows lateral primordia initiation. (a) Explain how the PZ genetic program control (1) meristem maintenance, (2) organ separation, and (3) organ differentiation/leaf primordia outgrowth using the following keywords: KNOX genes, cytokinins, gibberellin, auxin, CUC, and AS1. (b) Explain how this genetic program is used in the formation of compound leaves. (c) Please use KNOX PZ genetic module as an example to explain process homology during compound leaf evolution.
- Below is a series of pictures of a eudicot stem tip (I.s.), Coleus sp.. Much of what plant biologists have learned about leaf development have occurred by studying stem tip genetics. 40x (I.s.) Make a sketch of the 40x stem longitudinal section and upload it here with the following structures labeled: apical meristem, leaf primordium, axillary bud, procambium, vascular tissue (need to look lower down the stem for these sub-tissues), ground meristem, cortex, pithIn a common eudicot pattern of development for the common bean in the figure, the radicle emerges from the seed (1), then begins to develop into a primary root that grows down into the soil. As this occurs, the hypocotyl emerges from the seed and bends into the shape of a hook (2). The bent hypocotyl lengthens and pulls the cotyledons upward (3). When the hypocotyl reaches the soil surface, exposure to light causes it to straighten (4). Primary leaves emerge from between the cotyledons and begin photosynthesis. The cotyledons typically undergo a period of photosynthesis before shriveling (5). Eventually, the cotyledons fall off the lengthening stem, and the young plant’s new leaves produce all of its food. a) Identify and explain what environmental factors influence the timing and coordination of the germination of seeds.Using the provided figure, describe the importance of the two phytochrome systems in controlling de-etiolation and green stem elongation under full sun and shade. Include the key mechanisms and temporal changes in control of this process.
- 1. The images below are cross-sections through shoot and root apical meristems. What does each represent? (a) (b) (a) = (b) = What is the structure the arrow is pointing to in image (b) above?4. A) Identify which type of light (Red or Far-Red) simulates seed germination. B) Identify which type of light (Red or Far-Red) inhibits seed germination. C) If a group of seeds was exposed to the following light sequence: red → far-red →red → far-red → red → darkness, would seed germination be inhibited or simulated? Please answer in order and label them.If the PIN2 gene is rendered non-functional by mutation it dramatically reduces the speed of the gravitropic response in the root. Explain what PIN proteins do and why the loss on PIN2 would likely affect the speed of the gravitropic response.