The oat coleoptiles of the seedlings above have been modified: either cut or placed in a light-blocking tube. Which ones will stills bend toward a directional light source?

What is a seed? What are four key adptations common in seed plants? What are the advantages of reduced gametophyte?

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.

Bougainvillea, sunflower, and hibiscus, what is the form of the regular gamopetalous corolla? Based on the text

What are the major benefits of gravitropism for a germinating seedling?

Please 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.

A team of researchers investigated the effects of phosphorous availability and light intensity on an angiosperm species. Seeds of the angiosperm were divided into four equal groups. Groups 1 and 2 were exposed to 200 μmol, and Groups 3 and 4 were exposed to 500 μmol. Groups 2 and 4 also received a phosphorous (P) solution. After 20 days, all plants were weighed, and the average dry weight of each group was calculated. The results are in the table below.   Group 1(200 μmol, no P) Group 2(200 μmol, + P) Group 3 (500 μmol, no P) Group 4 (500 μmol + P) Average Dry weight (g) 0.8 1.1 1.5 6.2 Describe the effects of light and phosphorous on the growth of the plants in this study. Explain how the metabolic processes associated with the plant kingdom likely influenced these results.

The term hypocotyl refers to the portion of the embryonic stem that is located below the attachment of the cotyledons.   Is the statement true or false

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.

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.