This video segment explores the benefits and pitfalls of cloning as a means of reproduction. From Evolution: "Why Sex?" [3:17] Accompanied by a short background essay.
Explore the differences between the two methods of reproduction. Learners will identify types of asexual reproduction and recognize how plants and animals sexually reproduce.
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Biology 2e is designed to cover the scope and sequence requirements of a typical two-semester biology course for science majors. The text provides comprehensive coverage of foundational research and core biology concepts through an evolutionary lens. Biology includes rich features that engage students in scientific inquiry, highlight careers in the biological sciences, and offer everyday applications. The book also includes various types of practice and homework questions that help students understand—and apply—key concepts. The 2nd edition has been revised to incorporate clearer, more current, and more dynamic explanations, while maintaining the same organization as the first edition. Art and illustrations have been substantially improved, and the textbook features additional assessments and related resources.
By the end of this section, you will be able to do the following:
Describe advantages and disadvantages of asexual and sexual reproduction
Discuss asexual reproduction methods
Discuss sexual reproduction methods
By the end of this section, you will be able to do the following:
List the features that distinguish the kingdom Animalia from other kingdoms
Explain the processes of animal reproduction and embryonic development
Describe the roles that Hox genes play in development
By the end of this section, you will be able to do the following:
Compare the mechanisms and methods of natural and artificial asexual reproduction
Describe the advantages and disadvantages of natural and artificial asexual reproduction
Discuss plant life spans
Discusses how prokaryotes reproduce.
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The Cell Biology Project at the University of Arizona provides an explanation of mitosis, DNA basics, diagrams and a practice exercise.
Can you identify the steps of mitosis in this video? The video shows the process of the nucleus of a eukaryotic cell dividing in real time. [0:19]
Bacteria reproduce asexually. This means that, when a bacteria cell splits, both halves of the split are identical -- they contain exactly the same DNA. The offspring is a clone of the parent.
Students work in pairs to compare five aspects of an organism that reproduces sexually, asexually, or both sexually and asexually. The activity comes with a chart for the students to fill out and with information sheets on twelve organisms. As a class, students share their comparisons and generate a list of general characteristics for each mode of reproduction and then discuss the advantages and disadvantages of both. Included in the discussion are reproductive mechanisms and genetic variation.
Explore the different ways that animals and plants reproduce.
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Explore the reproduction of fungi.
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Bacteria, being single-celled prokaryotic organisms, do not have a male or female version. Bacteria reproduce asexually. In asexual reproduction, the "parent" produces a genetically identical copy of itself. Learn more about bacteria reproduction in this learning module produced by CK-12.
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