Environmental influences on variation

• What types of gametes are produced through meiosis?

  Genetically diverse gametes
• What is the effect of water access on growth?

  It impacts growth, especially in dependent organisms
• What is the effect of light on plant growth?

  Plants in sunlight are taller and bushier
• What are some characteristics influenced by both genetic and environmental factors?

  Skin color and hair color
• How does adequate nutrition influence organism growth?

  It makes organisms grow larger
• How do genetic and environmental factors interact to influence a person's characteristics according to the image?

  • Characteristics can be inherited from parents (genetic)
  • Characteristics can also be a result of the environment or influenced by both genetic and environmental factors
• What role do genes play in determining height?

  Genes influence height potential
• How might a mutation affect height?

  It could make someone taller than others
• What role does meiosis play in genetic variation?

  It shuffles and rearranges genes during reproduction
• How is genetic variation controlled?

  By DNA
• What are genetic mutations?

  Random changes in genes that create variations
• How do genes from parents affect traits?

  They determine traits like height and eye color
• How can temperature affect plant characteristics?

  Cooler temperatures can make plants shorter
• What is genetic variation inherited from?

  Parents
• What is environmental variation influenced by?

  External factors
• What role do nutrients play in growth?

  Adequate nutrients enhance growth
• How can genetic factors influence height in students?

  Genes inherited from parents encourage growth
• What are the two main factors that cause variation?

  Genetic and environmental factors
• What are the main differences between genetic and environmental variation?

  • Genetic Variation:
  • Source: Parents' genes
  • Control: DNA
  • Environmental Variation:
  • Source: External factors
  • Control: Conditions
• How can environmental factors affect height in students?

  Diet or lifestyle can influence height
• What is the result of combining genes from two parents?

  Each offspring inherits a unique mix of genes
• How does genetic variation manifest in a classroom setting?

  • Height differences among students
  • Some students are taller due to growth-promoting genes
  • Others are shorter due to different genetic combinations
• How does sexual reproduction contribute to variation?

  It combines genes from two parents
• What is the result of having adequate nutrients?

  It leads to larger organisms
• How do genes and the environment interact to shape characteristics?

  • Genes set the potential for characteristics
  • The environment determines gene expression
  • Example: Height influenced by genes, diet, and exercise
• What is the control mechanism for environmental variation?

  Conditions
• What environmental factor can stunt growth in organisms?

  Temperature
• According to the image, what are the two main factors that can influence a person's characteristics?

  Genetic and environment
• What does variation mean in biology?

  Differences between organisms in a population
• What are the characteristics listed in the image that can be influenced by both genetic and environmental factors?

  • Blood type
  • Tongue roll
  • Freckles
  • Skin colour
  • Hair colour
  • Accent
  • Tattoo
  • Scar
• How do genetic and environmental factors interact in determining characteristics?

  They combine to create final traits
• How does light influence plant growth?

  Plants in shady areas grow differently
• How do genetic and environmental factors interact to influence variation?

  • Genetic factors determine potential traits
  • Environmental factors can enhance or limit expression
  • Example: Students with exercise and balanced diet may be taller
• What is the definition of variation according to the image?

  Characteristics can be inherited from your parents (genetic), as a result of our environment or influenced by both.
• How do cooler temperatures affect growth?

  They might stunt growth, affecting size and height
• What creates unique individuals among offspring?

  Different gene combinations
• How does the environment shape characteristics compared to genes?

  The environment determines how genes are expressed
• What factors besides genes can influence height?

  Diet and exercise can influence height
• What is the main source of variation in individuals?

  Genetic sources