BIOLOGY: CONCEPTS & INVESTIGATIONS
4th Edition
ISBN: 9781260366204
Author: Hoefnagels
Publisher: MCG CUSTOM
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Textbook Question
Chapter 24, Problem 3MCQ
What are the pro ducts of double fertilization?
- a. Two diploid zygotes
- b. A diploid zygote and a triploid endosperm
- c. A haploid sperm and a diploid zygote
- d. A triploid zygote
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Compare what happens to a spore mother cell as it gives rise to a spore with what happens to a spore as it gives rise to a gametophyte.
a. The spore mother cell and the spore both go through meiosis.
b. The spore mother cell and the spore both go through mitosis.
c. The spore mother cell goes through mitosis, and the spore goes through meiosis.
d. The spore mother cell goes through meiosis, and the spore goes through mitosis.
From what structure does a pollen grain develop?
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The pollen lands on which part of the flower? a. stigma b. style c. ovule d. integument
Chapter 24 Solutions
BIOLOGY: CONCEPTS & INVESTIGATIONS
Ch. 24.1 - What adaptations contribute to the reproductive...Ch. 24.1 - Prob. 2MCCh. 24.1 - Prob. 3MCCh. 24.1 - Describe alternation of generations In the plant...Ch. 24.2 - Prob. 1MCCh. 24.2 - Prob. 2MCCh. 24.2 - Prob. 3MCCh. 24.2 - Prob. 4MCCh. 24.2 - Prob. 5MCCh. 24.3 - Prob. 1MC
Ch. 24.3 - Prob. 2MCCh. 24.3 - Prob. 3MCCh. 24.4 - Prob. 1MCCh. 24.4 - Prob. 2MCCh. 24.4 - List the major classes of plant hormones, and name...Ch. 24.4 - Prob. 4MCCh. 24.5 - Prob. 1MCCh. 24.5 - Prob. 2MCCh. 24.5 - How does phytochrome help regulate seed...Ch. 24.5 - How do long-day plants differ from short-day...Ch. 24.6 - Prob. 1MCCh. 24.6 - Prob. 2MCCh. 24.7 - Prob. 1MCCh. 24.7 - Prob. 2MCCh. 24.8 - What did Tewksbury and Nabhan conclude about the...Ch. 24.8 - Prob. 2MCCh. 24 - Prob. 1MCQCh. 24 - Prob. 2MCQCh. 24 - What are the pro ducts of double fertilization? a....Ch. 24 - Prob. 4MCQCh. 24 - Prob. 5MCQCh. 24 - Prob. 1WIOCh. 24 - Describe the male and female gametophytes of...Ch. 24 - How does an exclusive relationship between a plant...Ch. 24 - Prob. 4WIOCh. 24 - Prob. 5WIOCh. 24 - If fruit production is a measure of fitness, why...Ch. 24 - Explain how plants grow toward light. Why is this...Ch. 24 - Prob. 8WIOCh. 24 - Prob. 9WIOCh. 24 - Prob. 10WIOCh. 24 - Prob. 1PITCh. 24 - Prob. 2PIT
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- The production of which structure in a flowering plant involves genetic recombination? A. haploid gametes B. haploid spores C. diploid gametes D. diploid sporesarrow_forwardHow does double fertilization occur in flowering plants?a. The two sperm in a pollen tube fertilize the two egg cells present ineach female gametophyte.b. One of the two sperm in a pollen tube fertilizes the single egg in afemale gametophyte, and the other fuses with the two nuclei presentin the central cell.c. Two sperm, one contributed by each of two different pollen tubes,fertilize the two egg cells in a single female gametophyte.d. Two sperm contributed by separate pollen tubes enter a singlefemale gametophyte; one of the sperm fertilizes the egg cell, and theother fertilizes the central cell.e. None of the above is correct.arrow_forwardIn which part of the female flowerdoes fertilisation take place?A. FilamentB. StigmaC. OvaryD. Stylearrow_forward
- It is in the plants that mature cells can revert to what undifferentiated state? A. callus B. gametes C. stem cells D. totipotent cellsarrow_forwardDescribe the process of double fertilization in angiosperms and add a note on its significance.arrow_forwardA yellow dust appears on the fingers, whenever we touch the middle of a flower. These tiny yellow grains are one of the most precious substances in nature because they contain the secret of plant life. What is this dust called? A. Pollen B. Sperm C. Spore D. Sporocystarrow_forward
- Fill in the blank with the term that best completes the sentence. 21. Switching between a haploid gametophyte stage and a diploid sporophyte stage is called 22. gives plant stems stiffness and helps protect plants against predators. 23. Nonvascular plants use for absorbing water. 24. Asexual reproduction from stems, leaves, or roots is called occurs when a growing plant embryo bursts through the seed coat. 25. 26. Liverworts, hornworts, and mosses are all plants. 27. Another name for vascular plants i , 28. stores food in seed plants. 29. In a flower the contains the stigma, style, and ovary. 30. The protects the seed.arrow_forwardWhich of the following pairs of plant structure has the haploid number ofchromosomes? A. Megaspore mother cell and antipodal cells B. Egg cell and antipodal cells C. Egg cell and endosperms D. Microspore mother cell and antipodal cellsarrow_forwardIf tall stems is dominant to short stems in pansies, what type of stem will the offspring of a tall plant and a short plant have? a. Tall b. Short c. Averagearrow_forward
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