II.Altemate responseC. If statement A is correct and B is wrong.D. If statement A is wrong and B is correct.A. f both statements are correct.B. If both statements are wrong.25. A. The microsporangium in the anther contains numerous microsporocytes which will undergomeiosis to produce four haploid microspores.B. Each microspore develops into a pollen grain containing two sperm nuclei and one tubenucleus.26. A. The megasporocyte will undergo meiosis to produce four haploid megaspores threemegaspores degenerate.B. One remaining megaspore divides mitotically three times.27. A. An embryo sac (ovule) contains eight haploid nuclei.B. Three nuclei become three synergids, 2 polar nuclei, 3 antipodal nuclei.28. A. Inside a pollen grain there is a tube cell and generative cell.B. Generative cell divides to produce two sperm cells while the tube cell becomes pollen tubeelongates along the style.29. A. One sperm unites with the egg to form the zygote.B. The other sperm fuses with the polar nuclei to become the endosperm, which serves as foodof the early embryo.30. A. Embryogenesis follows while the ovary matures into fruit.B. The ovule becomes the seed.

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II. Altemate response C. If statement A is correct and B is wrong. D. If statement A is wrong and B is correct. A. f both statements are correct. B. If both statements are wrong. 25. A. The microsporangium in the anther contains numerous microsporocytes which will undergo meiosis to produce four haploid microspores. B. Each microspore develops into a pollen grain containing two sperm nuclei and one tube nucleus.

II. Altemate response C. If statement A is correct and B is wrong. D. If statement A is wrong and B is correct. A. f both statements are correct. B. If both statements are wrong. 25. A. The microsporangium in the anther contains numerous microsporocytes which will undergo meiosis to produce four haploid microspores. B. Each microspore develops into a pollen grain containing two sperm nuclei and one tube nucleus.

Biology: The Unity and Diversity of Life (MindTap Course List)

14th Edition

ISBN:9781305073951

Author:Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr

Publisher:Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr

Chapter29: Life Cycles Of Flowering Plants

Section: Chapter Questions

Problem 1SQ: _______ is the arrival of pollen on a receptive stigma.

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2. A. The microsporangium in the anther contains numerous microsporocytes which will undergo meiosis to produce four haploid microspores. B. Each microspore develops into a pollen grain containing two sperm nuclei and one tube nucleus. A.If statement A is correct and B is wrong. B.If both statements are correct. C.If statement A is wrong and B is correct. D.If both statements are wrong.
please answer the two questions and explain
_______ is the arrival of pollen on a receptive stigma.
1.a.) In "alternation of generations" or the haplo-diplontic life cycle, what is the name of the cell that makes the male spore? 1.b.) Compared to mosses and liverworts, gymnosperms have fewer cells in the ______ stage
I. The joining of male and female reproductive cells is called?? II. It is the make reproductive part of the flower III. If stigma recieves pollen from another flower of the same species what the flower is ???
1.To study mitosis, what is the best time to harvest onion root tips and why? 2. Other than an onion, can you suggest any other raw material for the study of mitosis. 3. For the cytological study, why are different parts of monocots preferred?
Identification: 1. In the moss gametophyte, this structure contains the haploid female gamete. 2. It refers to the production of two different types of spores (megaspore and microspore). 3. The embryos of corn and other grass seeds are partial enclosed in a protective sheath called?
Label the following as A, B, C, D Foot/ Seta/ Capsule Sporangium/ Spore mother cells
3. A. Inside a pollen grain there is a tube cell and generative cell. B. Generative cell divides to produce two sperm cells while the tube cell becomes pollen tube elongates along the style. A.If both statements are correct. B.If statement A is wrong and B is correct. C.If statement A is correct and B is wrong. D.If both statements are wrong.
Mycelium is a mass of conidia. A. True B. False
1. A. The megasporocyte will undergo meiosis to produce four haploid megaspores three megaspores degenerate.B. One remaining megaspore divides mitotically three times. A.If both statements are wrong. B.If both statements are correct. C.If statement A is wrong and B is correct. D.If statement A is correct and B is wrong. 2. A. The microsporangium in the anther contains numerous microsporocytes which will undergo meiosis to produce four haploid microspores. B. Each microspore develops into a pollen grain containing two sperm nuclei and one tube nucleus. A.If statement A is correct and B is wrong. B.If both statements are correct. C.If statement A is wrong and B is correct. D.If both statements are wrong.
буmnosperms Type of spore formed by heterosporous species which give rise to female gametophytes. A. Hetrospores B. Mergasporngiav C. Homospores D. Megaspores