Biology: DNA Replication: A Summary

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In this lesson, Professor Wolfe provides a complete overview of the replication of DNA, beginning with its structure. DNA has a double-helix structure of nucleotides, which made-up of a sugar, a phosphate, and a base. The strands are antiparallel, meaning they run in opposite directions, known as the 5' strand and the 3' strand. DNA replicates by the semi-conservative method of replication.

Professor Wolfe explains how DNA polymerase only reads in one direction, from 3' to 5', and therefore creates ""replication bubbles"" in order to replicate the DNA twice as fast. This creates leading and lagging strands, which require RNA primer and Okazaki fragments added to the lagging strand in order for the process to work properly. At the end of the strands, which lack the free OH molecule needed to complete the process, telomeres are used to protect against a loss of information.

This lesson is perfect for review for a CLEP test, mid-term, final, summer school, or personal growth!

Taught by Professor George Wolfe, this lesson was selected from a broader, comprehensive course, Biology.

Category:

Education

Tags:

• DNA
• replication
• Biology
• mindbites
• how to
• study
• thinkwell

[MrJmazing1]

How much does each lesson cost?

[Mindbitesdotcom]

@MrJmazing1 Video lessons on Mindbites start at $0.99 and this lesson on DNA Replication is $1.98. You can select the "show more" option above to find a link to purchase this lesson. Thanks for watching and best of luck with your studies!

[Mindbitesdotcom]

@MrJmazing1 @MrJmazing1 Video lessons on MindBites start at $0.99 and this lesson on DNA Replication is $1.98. You can select the "show more" option above to find a link to purchase this lesson. Thanks for watching and best of luck with your studies!

[305latingrl]

I wish he was my teacher! So clear!

[tarongaleela]

when the exams come around, im just going to draw this man

[scuzzulus]

@VthatsME it has to do with getting the bases to line up (adenine+thymine and guanine+cytosine) its just the way the molecules fit together.

[scuzzulus]

nice. the crazy old bastard explains things quite well.

[VthatsME]

my only question is: why HAS the other side has to be antiparallel? there wouldn't be a problem if it went in the same direction, I think..

[Diehardwickedfan]

thank. you. its really hard to be prepared for a test when you leave your book in your locker.....

[reynadeedee]

very good teacher

[biowhy]

i love you.