Page 352F: Cell Reproduction
Mitosis World Home
At this site you can find all kinds of information on mitosis. Click on movies of mitosis to see a list of links to movies that show mitosis. Or click on mitosis links to see many other web sites on mitosis.
Mitosis: Mitosis in Onion Root Tips
Visit this site to observe the various steps in mitosis as they occur in onion root tips. The site includes photomicrographs of each phase of mitosis.
Control of the Cell Cycle
Go to this site to read about the cell cycle in eukaryotic organisms, including mammals.
Cells Alive! Mitosis
Go to this site to learn more about various aspects of cell biology. You can navigate the site by clicking on highlighted items in the menu to the left of the screen. For example, click on topics, then on cell biology to see a list of the cell biology topics available. Then click on mitosis to see an animation of mitosis.
Visit this site to understand the events that occur in meiosis. Click on any of the highlighted topics to see a brief overview of that topic.
Go to this site to understand the events that occur in meiosis in eukaryotes. Scroll down to read about ways in which the genome of offspring can be diversified, that is, genetic recombination.
At this site you can learn all about replication of DNA during the S phase of the cell cycle. The site includes information on the speed and control of DNA replication.
Eukaryotic Chromosome Structure
Go to this site to find out more about the structure and replication of DNA. Click on DNA replication in the menu at the left of the screen for more information about eukaryotic chromatin structure.
Page 359 Cloning
The Pros and Cons of Genetic Engineering
Visit this site to read a brief but thoughtful discussion of the benefits and disadvantages of genetic engineering, especially as it applies to human beings.
Genetic Engineering – Part 2: Pros and cons of genetically engineered crops
Go to this University of West Virginia site to read a list of some of the pros and cons related to genetically engineered crops. Genetically modified crops (also called transgenic crops) are created to resist pests or to produce high nutrient levels.
Pros and Cons of Genetic Engineering
At this University of New Hampshire site you can read short lists of pros and cons of plant genetic engineering. Read through both lists, then scroll down to see two tables that list how people at the university feel about genetic engineering.
What is a clone?
At this WorldBook.com site you can read about what a clone is and the different types of clones.
Cloning 1-2-3: Making a Ewe
Visit this site to learn more about the sheep named Dolly, the first mammal to be cloned, and cloning techniques.
Conceiving a Clone
Go to this site to learn more about cloning and to read a discussion about the ethics of cloning.
Legislation Pertaining to Cloning Human Beings
Go to this site to see what laws govern human cloning in the United States.
Visit this Worldbook.com site to learn about some of the ethical concerns inherent in cloning, especially cloning of human beings.
The Cloning Debate
Go to this article by the Washington Post online to read about the debate over cloning. You can vote in a survey here on whether the United States should ban human cloning. Click on featured story to see other reports on cloning.
Human Cloning: Introduction
At this site, scroll down to find out what cloning is, the history of cloning, and how it is done. You may also read about the moral issues involved with cloning here.
Executive Summary: Cloning Human Beings
Go to this site to read the results of the National Bioethics Advisory Commission’s attempt to address the ethical and legal issues that surround human cloning.
Page 370: DNA as Evidence
Basics of DNA Fingerprinting
Visit this site to find out all about the use of DNA as evidence. This site includes a description of how DNA fingerprinting is done, as well as problems with DNA fingerprinting as evidence.
DNA Fingerprinting in Human Health and Society
Go to this site to read about making DNA fingerprints and uses of DNA fingerprints, for example, to look for genetic disorders that are not expressed physically.
At this site by Newton’s Apple you can read all about DNA and its use in legal proceedings. Scroll down to the middle of the page to the main activity. In this activity, you can use chromatography to model DNA fingerprint analysis for your class.
NOVA Online: Killer’s Trail: Create a DNA Fingerprint
Go to this PBS site to solve a mystery using a DNA fingerprint. This is a good site for students to use to find out how DNA fingerprinting would work in a real case.
How DNA Evidence Works
At this site you can learn the exact steps used to create a DNA fingerprint. The site includes a comprehensive description of the steps actually taken in the laboratory to do this. Scroll down to the bottom of the page to see other topics on DNA fingerprinting.