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Key Concepts in Cell Biology, Genetics, and Molecular Biology: Guided Study

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Biological Membranes

  • Biological Membranes Example 1
    02:21
  • Biological Membranes
    06:04

Introduction to Membrane Transport

  • Map of the Lesson on Membrane Transport
    02:33
  • Introduction to Membrane Transport
    02:47
  • Which Molecules Freely Cross Membranes?
    07:10

Osmosis

  • Osmosis Example 1
    02:18
  • Osmosis
    05:59
  • Direction of Osmosis
    06:48

Simple and Facilitated Diffusion

  • Simple and Facilitated Diffusion
    05:10
  • Transport Proteins of Facilitated Diffusion
    04:49

Active Transport

  • Secondary Active Transport
    07:06
  • Active Transport
    02:37
  • Primary Active Transport
    02:53

Prokaryotic & Eukaryotic Cells

  • Recap: Prokaryotic vs. Eukaryotic Cells
    04:26
  • Prokaryotic & Eukaryotic Cells
    05:54
  • Features of Bacterial Cells
    03:54

Introduction to Cell Division

  • Asexual vs. Sexual Reproduction
    04:45
  • Introduction to Cell Division
    09:40
  • Importance of Cell Division
    03:19

Phases of Mitosis

  • Phases of Mitosis
    03:21
  • Metaphase
    01:58
  • Prometaphase
    03:20

Genes & Alleles

  • Genes & Alleles Example 1
    02:09
  • Genes & Alleles
    05:02
  • Haploid vs. Diploid Cells
    04:14

Genotype vs. Phenotype

  • Genotype & Phenotype
    06:36
  • Dominant vs. Recessive Alleles
    03:39

Monohybrid Crosses

  • Monohybrid Crosses Example 1
    03:12
  • Genotypic vs. Phenotypic Ratio
    02:48
  • Monohybrid Crosses
    02:05

Introduction to the Cell Cycle

  • Introduction to the Cell Cycle
    04:46

Organization of DNA in the Cell

  • DNA Replication
    05:46
  • Organization of DNA in the Cell
    06:52

Central Dogma

  • Central Dogma
    05:45

Introduction to Transcription

  • Overview of Transcription
    07:44
  • Introduction to Transcription
    05:51

Introduction to Types of RNA

  • Introduction to Types of RNA
    07:20

Introduction to Translation

  • Ribosomal tRNA Binding Sites
    06:16
  • Ribosome Subunits
    08:42
  • Introduction to Translation
    06:12

DNA Polymerases

  • DNA Polymerase Requirements
    05:03
  • DNA Polymerases
    04:01

Steps of DNA Replication

  • Steps of DNA Replication
    09:29

Introduction to Regulation of Gene Expression

  • Positive vs Negative Gene Regulation
    02:17
  • Introduction to Regulation of Gene Expression
    06:40

The Trp Operon

  • In the Presence of Tryptophan
    03:11
  • The Trp Operon
    05:30
  • In the Absence of Tryptophan
    03:42

Eukaryotic Chromatin Modifications

  • Eukaryotic Chromatin Modifications
    03:55
  • Histone Acetylation
    04:14
  • DNA Methylation
    03:39

Viruses

  • Virus Structure
    04:50
  • Lytic and Lysogenic Cycles
    08:04
  • Viroids and Prions
    04:22