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4. Molecular Genetics I

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4. Molecular Genetics I

(April 5, 2010) Robert Sapolsky makes interdisciplinary connections between behavioral biology and molecular genetic influences. He relates protein synthesis and point mutations to microevolutionary change, and discusses conflicting theories of gradualism and punctuated equilibrium and the influence of epigenetics on development theories.

Stanford University


Stanford Department of Biology


Stanford University Channel on YouTube

5. Molecular Genetics II

(April 7, 2010) Robert Sapolsky continues his series on molecular genetics in which he discusses domains of mutation and various components of natural selection on a molecular level. He also further assesses gradualism and punctuated equilibrium models of evolution, integrating these theories into an interrelated model of development.


Stanford University


Stanford Department of Biology


Stanford University Channel on YouTube
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43. Unit 4. Molecular genetics 1 of 5

This video looks at the structure of DNA and the nucleotides that make it. We then look at how DNA is packaged into chromosomes, and some important concepts for when we talk about numbers of chromosomes in cells (ploidy).
The video then moves into some further information of transcription (you should know both transcription and translation for Unit 4).
Finally we look at how DNA is replicated (for example when a cell divides!) in a process called semi conservative replication.

44. Unit 4. Molecular genetics 2 of 5

This video looks at the structure of DNA and the nucleotides that make it. We then look at how DNA is packaged into chromosomes, and some important concepts for when we talk about numbers of chromosomes in cells (ploidy).
The video then moves into some further information of transcription (you should know both transcription and translation for Unit 4).
Finally we look at how DNA is replicated (for example when a cell divides!) in a process called semi conservative replication.
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Molecular Genetics Review Video

DNA Structure and Replication: Crash Course Biology #10

Hank introduces us to that wondrous molecule deoxyribonucleic acid - also known as DNA - and explains how it replicates itself in our cells.

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References for this episode can be found in the Google document here:

1:41 link to Biological Molecules

Table of Contents:
1) Nucleic Acids 1:30
2) DNA
-A) Polymers 1:53
-B) Three Ingredients 2:12
-C) Base Pairs 3:45
-D) Base Sequences 4:13
3) Pop Quiz 5:07
4) RNA 5:36
-A) Three Differences from DNA 5:43
5) Biolography 6:16
6) Replication 8:49
-A) Helicase and Unzipping 9:22
-B) Leading Strand 9:38
-C) DNA Polymerase 10:08
-D) RNA Primase 10:24
-E) Lagging Strand 10:46
-F) Okazaki Fragments 11:07
-F) DNA Ligase 11:47

DNA, deoxyribonucleic acid, chromosome, nucleic acid, ribonucleic acid, RNA, polymer, nucleotide, double helix, nucleotide base, base pair, base sequence, friedrich miescher, rosalind franklin, replication, helicase, leading strand, lagging strand, rna primase, dna polymerase, okazaki fragment Support CrashCourse on Subbable:
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Central dogma of molecular biology | Chemical processes | MCAT | Khan Academy

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45. Unit 4. Molecular genetics 3 of 5

This video looks at the structure of DNA and the nucleotides that make it. We then look at how DNA is packaged into chromosomes, and some important concepts for when we talk about numbers of chromosomes in cells (ploidy).
The video then moves into some further information of transcription (you should know both transcription and translation for Unit 4).
Finally we look at how DNA is replicated (for example when a cell divides!) in a process called semi conservative replication.

Molecular Biology

Paul Andersen explains the major procedures in molecular biology. He starts with a brief description of Taq polymerase extracted from the hot pools of Yellowstone Park. He then uses the analogy of the ransom note to explain each of the processes that are required in genetic engineering. He explains how DNA is cut using restriction enzymes and glued using hydrogen bonds. He explains how gel electrophoresis can be used to sort DNA according to length and how the Polymerase Chain Reaction can be used to copy DNA. He finishes with a brief description of DNA sequencing.

Intro Music Atribution
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Artist: CosmicD
Link to sound:
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MICROBIOLOGY and MOLECULAR GENETICS

Microbiology outstanding senior Kristina Baker explains the value of learning new things, undergraduate research, preparing for graduate school, and her experience at OSU.
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Molecular Genetics

Please fill out the Questions About Molecular Genetics survey at

Molecular Genetics Part 20: Biotechnology

In this video from our course on molecular genetics, learn all about biotechnology.
Need more help? Check out our course page on Molecular Genetics here!
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Molecular Genetics Introduction

Mr. Lima introduces the topic of molecular genetics and talks about the importance of DNA for life and biology research

Unit 5 Review - Genetics

Paul Andersen reviews the major concepts within the fifth unit of the new AP Biology framework. He starts with a description of both DNA and RNA. He explains how DNA is copied during the S phase of mitosis. He explains how transcription produces a strand of mRNA that is translated at the ribosome into a polypeptide. He compares and contrasts mitosis and meiosis and differentiates between haploid and diploid cells. He finally discusses Mendelian and chromosomal genetics. He finishes the podcast with a discussing of operons and transcription factors.

Intro Music Atribution
Title: I4dsong_loop_main.wav
Artist: CosmicD
Link to sound:
Creative Commons Atribution License

47. Unit 4. Molecular genetics 5 of 5

This video looks at the structure of DNA and the nucleotides that make it. We then look at how DNA is packaged into chromosomes, and some important concepts for when we talk about numbers of chromosomes in cells (ploidy).
The video then moves into some further information of transcription (you should know both transcription and translation for Unit 4).
Finally we look at how DNA is replicated (for example when a cell divides!) in a process called semi conservative replication.
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Lecture 10 - Tonu Esko - Basics of Molecular Genetics I

2016 Summer Institute in Social-Science Genomics
Russell Sage Foundation

DNA replication and RNA transcription and translation | Khan Academy

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Biology on Khan Academy: Life is beautiful! From atoms to cells, from genes to proteins, from populations to ecosystems, biology is the study of the fascinating and intricate systems that make life possible. Dive in to learn more about the many branches of biology and why they are exciting and important. Covers topics seen in a high school or first-year college biology course.

About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content.

For free. For everyone. Forever. #YouCanLearnAnything

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Basics of Molecular Genetics

Bare Basics of Molecular Genetics examining how DNA is used for:
1. replication(only when cell reproduces) or
2. transcription and translation to produce RNA and protein (used continuously by cell)

Introduction to genetic engineering | Molecular genetics | High school biology | Khan Academy

Introduction to genetic engineering. Human breeding. Recombinant DNA. Bioethics.

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DNA, Hot Pockets, & The Longest Word Ever: Crash Course Biology #11

Hank imagines himself breaking into the Hot Pockets factory to steal their secret recipes and instruction manuals in order to help us understand how the processes known as DNA transcription and translation allow our cells to build proteins.

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Table of Contents:
1) Transcription 2:12
A) Transcription Unit 3:00
B) Promoter 3:10
C) TATA Box 3:32
D) RNA Polymerase 4:12
E) mRNA 4:15
F) Termination signal 5:21
G) 5' Cap & Poly-A Tail 5:34
2) RNA Splicing 6:08
A) SNuRPs & Spliceosome 6:26
B) Exons & Introns 6:56
3) Translation 7:28
A) mRNA & tRNA 8:01
B) Triplet Codons & Anticodons 8:39
4) Folding & Protein Structure 10:51
A) Primary Structure 11:11
B) Secondary Structure 11:23
C) Tertiary Structure 11:58
D) Quaternary Structure 12:44


Links to episodes referenced in the video:
DNA structure episode:
Animal cells episode:
Fold-it SciShow episode:

REFERENCES for this video can be found in the Google document here:

This video contains the following sounds from Freesound.org:
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swishes.wav by pogotron

tags: crashcourse, science, biology, DNA, titin, hot pocket, transcription, translation, gene, RNA, enzyme, transcription unit, adenine, thymine, cytosine, guanine, TATA box, DNA strand, mRNA, messenger RNA, RNA polymerase, uracil, termination signal, RNA splicing, SNuRPs, spliceosome, exons, introns, ribosome, tRNA, transfer RNA, amino acid, nitrogenous base, codon, anticodon, polypeptide chain, folding, helix, pleated sheets, protein biosynthesis, gene expression Support CrashCourse on Subbable:

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