Types of Reproduction Chromosomes Key Concepts 1 What

Types of Reproduction& Chromosomes Key Concepts: 1. What are the Differences between asexual and sexual reproduction? 2. What is a chromosome? 3. Why do different cells have different numbers of chromosomes? Key Vocabulary: • Asexual • Sexual • Chromosome • Haploid • Diploid

Reproduction: Producing Offspring Asexual Reproduction Sexual Reproduction • One Parent • Two Parents • Offspring Identical • Offspring Different • “clones” • Variation (differences) • Mitosis (making body cells) • Meiosis (making sex cells) • Advantage: • Fast • Disadvantages: • At risk for disease! • Advantages: • Genetic Diversity Survival • Disadvantages: • slower

Types of Asexual Reproduction Binary Fission Fragmentation Budding Vegetative Reproduction

What Are Chromosomes?

Our Chromosome Number HUMANS HAVE: 46 total (2 sets of 23) __23_____chromosomes in sperm (haploid) __23_____ chromosomes in Egg (haploid) 46 chromosomes in every body Cell. (diploid)

Key Terms Haploid Cells: Diploid Cells: Somatic Cells: Gametes: Fertilization Zygote

Karyotypes: and Homologous Chromosomes (pairs):

Comparison of Reproduction with Cell Divisions MITOSIS • ASEXUAL • Makes Body cells (somatic) • 1 cell 2 cells • 1 division • Genetically identical Cells (clones) • Diploid cell Diploid MEIOSIS • SEXUAL • Makes Sex cells (gametes) • 1 cell 4 cells • 2 divisions • Genetically Diverse (4 dif sperm/eggs) • Diploid cell Haploid

• • CROSSWORD INSTRUCTIONS: Give your crossword puzzle a name. Choose at least 15 words for your puzzle Make a clue list for both across and down Decorate Crossword! STEP 1: MAKE A KEY STEP 2: MAKE A BLANK PUZZLE STEP 3: Make the CLUES!