Cell division
All living things, including you, are made up of cells. Find out how cells divide through mitosis and meiosis, how the cell cycle is controlled, and how problems in cell cycle control can lead to cancer.
This course contains 4 segments:
Introduction to cell division
One of the major goals of dividing cells is to split up their DNA as perfectly as possible. (Incorrect division of DNA = chance of a nonfunctional cell, or even cancer!) Learn how DNA combines with proteins to form chromosomes, why different types of cells have different chromosome numbers, and what the parts of a chromosome are.
The cell cycle and mitosis
Imagine scraping your elbow. Ouch! In addition to being a little uncomfortable, you just lost a bunch of skin cells. How does your body make new cells to replace ones that are damaged or lost? Some of the remaining cells can divide (undergo mitosis) to produce new, healthy replacement cells. Learn more about mitosis and how cells divide.
Meiosis
Normal human body cells have two complete sets of chromosomes, while sperm and egg cells have just one set each. How, then, does a normal body cell give rise to sperm or eggs? The answer lies in a two-step division process called meiosis. Learn more about meiosis and how it contributes to genetic variation in humans (and other sexually reproducing organisms).
Cell cycle regulation, cancer, and stem cells
Cells in your body are dividing all the time. If they're healthy cells, they divide in a carefully controlled way, proceeding with division only when conditions are right. Cancer cells, on the other hand, divide in an uncontrolled way. Learn more about cell cycle control, cancer cells, and stem cells.
Get a Reminder
Rating | Not enough ratings |
---|---|
Length | 4 segments |
Starts | On Demand (Start anytime) |
Cost | Free |
From | Khan Academy |
Download Videos | On all desktop and mobile devices |
Language | English |
Subjects | Science |
Tags | Science Biology |
Get a Reminder
Similar Courses
Careers
An overview of related careers and their average salaries in the US. Bars indicate income percentile.
Supervisor Cell tech. $43k
Cell Sorter Operator $45k
Cell Site Technician 1 $54k
Cell tech. 2 $58k
SA Cell $62k
Cell tech. 3 $63k
Biologist  GMP cell culture/cell banking $74k
Biologist: cell culture/cell banking $74k
Cell Biologist $81k
Laser Cell Leader $94k
Scientist - Cell Biology $100k
cell tech Manager $113k
Write a review
Your opinion matters. Tell us what you think.
Please login to leave a review
Rating | Not enough ratings |
---|---|
Length | 4 segments |
Starts | On Demand (Start anytime) |
Cost | Free |
From | Khan Academy |
Download Videos | On all desktop and mobile devices |
Language | English |
Subjects | Science |
Tags | Science Biology |
Similar Courses
Sorted by relevance
Like this course?
Here's what to do next:
- Save this course for later
- Get more details from the course provider
- Enroll in this course