Biological Science, Books a la Carte Plus Mastering Biology with Pearson eText -- Access Card Package (6th Edition)
6th Edition
ISBN: 9780134296029
Author: Scott Freeman, Kim Quillin, Lizabeth Allison, Michael Black, Greg Podgorski, Emily Taylor, Jeff Carmichael
Publisher: PEARSON
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Chapter 47, Problem 15PIAT
Summary Introduction
To review:
The similarity and difference between mifepristone and emergency contraception on the basis of mechanism and explain the different methods.
Introduction:
Birth control is the method employed to prevent the beginning of a pregnancy by either taking contraceptives or termination of the pregnancy. The hormone levels are altered to carry out the function, such as progesterone, estrogen, or other hormones involved in maintaining the pregnancy.
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After you feel comfortable with your counting method and identifying cells in the various stages of mitosis, use the four images below of whitefish blastula to count the cells in each stage until you reach 100 total cells, recording your data below in Data Table 1. (You may not need to use all four images. Stop counting when you reach 100 total cells.)
After totaling the cells in each stage, calculate the percent of cells in each stage. (Divide total of stage by overall total of 100 and then multiply by 100 to obtain percentage.)
Data Table 1Stage Totals PercentInterphase Mitosis: Prophase Metaphase Anaphase Telophase Cytokinesis Totals 100 100%
To find the length of time whitefish blastula cells spend in each stage, multiply the percent (recorded as a decimal, in other words take the percent number and divide by 100) by 24 hours. (Example: If percent is 20%, then Time in Hours = .2 * 24 = 4.8) Record your data in Data…
Chapter 47 Solutions
Biological Science, Books a la Carte Plus Mastering Biology with Pearson eText -- Access Card Package (6th Edition)
Ch. 47 - Prob. 1TYKCh. 47 - Prob. 2TYKCh. 47 - Prob. 3TYKCh. 47 - Prob. 4TYKCh. 47 - Summarize the experimental evidence that Daphnia...Ch. 47 - Prob. 6TYUCh. 47 - 7. How do spermatogenesis and oogenesis in humans...Ch. 47 - 8. Give examples of negative feedback and positive...Ch. 47 - Prob. 9TYPSSCh. 47 - Prob. 10TYPSS
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