Reproduction

• What are the two main ways organisms can reproduce?

  Sexual reproduction and asexual reproduction
• Which organisms can reproduce through both sexual and asexual reproduction?

  Some plants
• What type of reproduction do most animals rely on?

  Sexual reproduction
• How do bacteria reproduce?

  Asexually
• What is the key point of sexual reproduction?

  It involves the fusion of male and female gametes
• What is fertilization in sexual reproduction?

  The fusion of male and female gametes
• Why are offspring from sexual reproduction genetically different?

  They contain a mixture of their parents' genes
• How many chromosomes does a normal human cell have?

  46 chromosomes
• How many chromosomes do human gametes have?

  23 chromosomes
• What happens when two gametes fuse together?

  The resulting cell has 46 chromosomes
• What process produces gametes?

  Meiosis
• Does sexual reproduction require sexual intercourse?

  No, it refers to gamete fusion
• How do plants reproduce sexually?

  Through the combination of pollen and egg cells
• What is a key characteristic of asexual reproduction?

  It involves only one parent
• What is the result of asexual reproduction?

  Identical clones of the parent
• How do eukaryotic organisms reproduce asexually?

  Through mitosis
• How do bacteria reproduce asexually?

  By binary fission
• What are the differences between sexual and asexual reproduction?

  • Sexual reproduction:
  • Involves two parents
  • Fusion of gametes
  • Offspring are genetically varied
  • Asexual reproduction:
  • Involves one parent
  • No fusion of gametes
  • Offspring are identical clones
• What processes are involved in gamete formation for different organisms?

  • Eukaryotic organisms (plants, fungi, animals):
  • Gametes formed through meiosis
  • Bacteria:
  • Gametes formed through binary fission
• What are the two ways organisms can reproduce?

  Sexual and asexual reproduction
• What is sexual reproduction?

  Fusion of two gametes like sperm and egg
• What is asexual reproduction?

  Mitosis forms an identical clone of the parent
• What are the advantages of asexual reproduction?

  • Only one parent needed
  • Very quick process
  • Rapid colonization of new areas
• How quickly can a single bacterium reproduce under ideal conditions?

  Within just a couple of days
• What is a downside of asexual reproduction?

  No genetic variation among offspring
• How does lack of genetic variation affect a population?

  Increases susceptibility to diseases
• What are the advantages of sexual reproduction?

  • Leads to genetic variation
  • Reduces risk of population wipeout
  • Allows for adaptation and evolution
• Why is genetic variation important in a population?

  It helps resist diseases and adapt
• What is evolution?

  Process by which species change over time
• What is the main disadvantage of sexual reproduction?

  It requires more time and energy
• Why do some birds have colorful feathers?

  To impress their potential mates
• What is the purpose of impressing a mate in sexual reproduction?

  To attract potential mates for reproduction
• What happens when a single seed lands in a new habitat?

  • It can grow and reproduce asexually
  • May lead to colonization of the area