The image below represents a flower meristem viewed from above. At the time the image represents, the cells are undifferentiated, although their eventual fates are determined (e.g. carpels, etc.). The rectangles indicate the regions of the meristem where particular genes (A, B, and C) are expressed. Note that these genes are expressed all around the circumference of the meristem at the location indicated; in other words, gene A is active in all cells in the rings labeled sepal and petals. Sepals Petals Stamens UEn Carpels Explain what cue the floral cells are likely using to determine the cells that will differentiate into the different parts (ie. sepal, petal, etc.) based on the given scenerio.

The image below represents a flower meristem viewed from above. At the time the image represents, the cells are undifferentiated, although their eventual fates are determined (e.g. carpels, etc.). The rectangles indicate the regions of the meristem where particular genes (A, B, and C) are expressed. Note that these genes are expressed all around the circumference of the meristem at the location indicated; in other words, gene A is active in all cells in the rings labeled sepal and petals. Sepals Petals Stamens UEn Carpels Explain what cue the floral cells are likely using to determine the cells that will differentiate into the different parts (ie. sepal, petal, etc.) based on the given scenerio.

Name: The image below represents a flower meristem viewed from above. At th
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Description: The image below represents a flower meristem viewed from above. At the time the image represents, the cells are undifferentiated, although their eventual fates are determined (e.g. carpels, etc.). The rectanglesindicate the regions of the meristem w

Biology: The Dynamic Science (MindTap Course List)

4th Edition

ISBN:9781305389892

Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Chapter37: Plant Signals And Responses To The Environment

Section: Chapter Questions

Problem 3ITD

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Suppose a flower had normal expression of genes A and Cand expression of gene B in all four whorls. Based on the ABChypothesis, what would be the structure of that flower, startingat the outermost whorl?(A) carpel-petal-petal-carpel(B) petal-petal-stamen-stamen(C) sepal-carpel-carpel-sepal(D) sepal-sepal-carpel-carpel
A close relative of this flower has very large sepals compared to this one. Apply what you know about morphogenesis in plants to make a hypothesis of how A close relative of this flower has very large sepals compared to this one. Apply what you know about morphogenesis in plants to make a hypothesis of how gene expression might differ in the relative compared to this plant. Be sure to relate it to the figure above. in the relative compared to this plant. Be sure to relate it to the figure above.
in flowering control of plant, describe a situation wherein there are mutations in at least one or all of the genes responsible for control of the floral development.
What types of flower structures would you expect to see in whorls 1 through 4 of a mutant plant that failed to produce both class A and class B gene products? a. Carpels, stamens, stamens, carpels b. Sepals, sepals, carpels, carpels c. Sepals, sepals, sepals, sepals d. Carpels, carpels, carpels, carpels
Can you answer this question, all of the parts please. A. Please explain the phenomenon of apical dominance in plant growth. B. Which plant hormone(s) involved in apical dominance?
Monoecious plants such as corn have either staminate or carpelate flowers. Knowing what you do about the molecular mechanisms of floral development, which of the following might explain the development of single-sex flowers? a. Expression of B-type genes in the presumptive carpel whorl will generate staminate flowers. b. Loss of A-type genes in the presumptive petal whorl will allow C-type and B-type genes to produce stamens instead of petals in that whorl. c. Restricting B-type gene expression to the presumptive petal whorl will generate carpelate flowers. d. All of the choices are correct.
Tom studies the floral identity genes. He found a mutant only develop flowers with two whorls of sepals and two whorls of carpels. Which may class(s) of floral homeotic genes be affected based on the ABC model? ______________. (A) A class genes (B) B class genes (C) C class genes (D) E class genes
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Genes are expressed identically in leaf cells and root cells. True 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.
Phytochrome, plays an important role in flowering in many plants. It can also be used to determine when lettuce seeds germinate (shown in the figure below What is phytochrome likely doing in the lettuce seeds? Activating abscisic acid production Activating inhibitors of germination Inhibiting gibberellin synthesis Turning on germination-related genes
Which of the following phrases best explains how differing maturity levels of the pistil and stamen are beneficial for some flowers ? ANSWER CHOICES ARE IN THE PHOTO. thanks