Biology
4th Edition
ISBN: 9781259188121
Author: Peter Stiling, Robert Brooker, Linda Graham, Eric Widmaier
Publisher: McGraw-Hill Education
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Chapter 39, Problem 4TY
How does double fertilization occur in flowering plants?
- a. The two sperm in a pollen tube fertilize the two egg cells present in each female gametophyte.
- b. One of the two sperm in a pollen tube fertilizes the single egg in a female gametophyte, and the other fuses with the two nuclei present in 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 single female gametophyte; one of the sperm fertilizes the egg cell, and the other fertilizes the central cell.
- e. None of the above is correct.
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Chapter 39 Solutions
Biology
Ch. 39.1 - Core Skill: Connections Look back to Figure 32.14...Ch. 39.1 - Prob. 1CCCh. 39.1 - Prob. 2CCCh. 39.1 - Prob. 3CCCh. 39.2 - What inference can you draw from the observation...Ch. 39.2 - List several ways in which the flowers at the rim...Ch. 39.2 - Why do you think Liang and Mahadevan used Lilium...Ch. 39.2 - How did time-lapse video improve data gathering in...Ch. 39.3 - Prob. 1CCCh. 39.3 - Prob. 2CC
Ch. 39.3 - Prob. 1BCCh. 39.4 - Prob. 1CCCh. 39.4 - Prob. 2CCCh. 39 - Where do the pollen grains of flowering plants...Ch. 39 - Prob. 2TYCh. 39 - Where would you find female gametophytes of a...Ch. 39 - How does double fertilization occur in flowering...Ch. 39 - Prob. 5TYCh. 39 - Prob. 6TYCh. 39 - Prob. 7TYCh. 39 - If an ovary contains eight ovules, how many seeds...Ch. 39 - Prob. 9TYCh. 39 - Prob. 10TYCh. 39 - Prob. 1CQCh. 39 - Prob. 2CQCh. 39 - Prob. 3CQCh. 39 - Prob. 1COQCh. 39 - How do plants prevent the production of many...
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