All Chapters
Ch. 1 - Introduction to Biology
Ch. 2 - Chemistry
Ch. 3 - Water
Ch. 4 - Biomolecules
Ch. 5 - Cell Components
Ch. 6 - The Membrane
Ch. 7 - Energy and Metabolism
Ch. 8 - Respiration
Ch. 9 - Photosynthesis
Ch. 10 - Cell Signaling
Ch. 11 - Cell Division
Ch. 12 - Meiosis
Ch. 13 - Mendelian Genetics
Ch. 14 - Chromosomal Theory of Inheritance
Ch. 15 - DNA Synthesis
Ch. 16 - Gene Expression
Ch. 17 - Regulation of Expression
Ch. 18 - Viruses
Ch. 19 - Biotechnology
Ch. 20 - Genomics
Ch. 21 - Development
Ch. 22 - Evolution by Natural Selection
Ch. 23 - Evolution of Populations
Ch. 24 - Speciation
Ch. 25 - History of Life on Earth
Ch. 26 - Phylogeny
Ch. 27 - Prokaryotes
Ch. 28 - Protists
Ch. 29 - Plants
Ch. 30 - Fungi
Ch. 31 - Overview of Animals
Ch. 32 - Invertebrates
Ch. 33 - Vertebrates
Ch. 34 - Plant Anatomy
Ch. 35 - Vascular Plant Transport
Ch. 36 - Soil
Ch. 37 - Plant Reproduction
Ch. 38 - Plant Sensation and Response
Ch. 39 - Animal Form and Function
Ch. 40 - Digestive System
Ch. 41 - Circulatory System
Ch. 42 - Immune System
Ch. 43 - Osmoregulation and Excretion
Ch. 44 - Endocrine System
Ch. 45 - Animal Reproduction
Ch. 46 - Nervous System
Ch. 47 - Sensory Systems
Ch. 48 - Muscle Systems
Ch. 49 - Ecology
Ch. 50 - Animal Behavior
Ch. 51 - Population Ecology
Ch. 52 - Community Ecology
Ch. 53 - Ecosystems
Ch. 54 - Conservation Biology
Genes & Alleles
Homologous Chromosomes
Life Cycle of Sexual Reproducers
Introduction to Meiosis
Meiosis I
Meiosis II
Genetic Variation During Meiosis
Mitosis & Meiosis Review

Example #1: Which of the following statements describes a difference between mitosis and meiosis I in a diploid organism?

Practice: During which of the following processes do sister chromatids separate from each other?

a) During meiosis I only.

b) During meiosis II only.

c) During both mitosis and meiosis I.

d) During both mitosis and meiosis II.

Practice: Which of the following statements describes a difference between meiosis II and mitosis in a diploid organism?

a) Sister chromatids align along the metaphase plate in mitosis while homologous chromosomes align in meiosis II.

b) Sister chromatids separate in mitosis and homologous chromosomes separate in meiosis II.

c) Meiosis II occurs in a haploid cell, while mitosis occurs in a diploid cell.

d) Crossing over of chromosomes takes place in meiosis II and does not take place in mitosis.

Practice: Which of the following processes occurs in meiosis but not in mitosis?

a) Chromosome replication during interphase.

b) Synapsis of chromosomes during prophase.

c) Alignment of chromosomes at the center of the cell.

d) Condensation of chromosomes during prophase.

e) None of the above.

Practice: What does it mean when we say that mitosis and meiosis II are forms of “equational division” while meiosis I is a form of “reductional division”?

a) Daughter cells of mitosis and meiosis II are both diploid while the daughter cells of meiosis I are haploid.  

b) The number of chromosomes in daughter cells of meiosis I is half the number of chromosomes of the parent cell.  

c) The number of chromosomes in daughter cells of mitosis and meiosis II is equal to the number of chromosomes in the parent cells.  

d) A and B.

e) B and C.

f) All of the above.