inheritance, variation and evolution

    Cards (30)

    • What is the topic of the video?
      Inheritance, variation, and evolution
    • What is the structure of DNA?
      DNA has a double helix structure
    • What do the multicolored lines in DNA represent?
      Base pairs that make up genetic code
    • What is a gene?
      A tiny section of a chromosome
    • What is a genome?
      The entire set of genetic material
    • How does genetic material vary among organisms?
      Everyone has different DNA
    • What are the two types of reproduction?
      Sexual and asexual reproduction
    • What is sexual reproduction?
      Involves two parents and produces gametes
    • What is a key characteristic of asexual reproduction?
      Produces identical offspring via mitosis
    • What is meiosis?
      A type of cell division that produces gametes
    • What happens to chromosomes during meiosis?
      They duplicate and then divide into gametes
    • What is a Punnett square used for?
      To predict offspring genetic traits
    • What is the probability of having a male or female offspring?
      50% chance for each gender
    • What do the letters XY and XX represent?
      Male and female chromosomes, respectively
    • What is genetic variation?
      Differences in genes and alleles among organisms
    • What can cause genetic variation?
      Mutations and environmental factors
    • What are two common genetic disorders?
      Polydactyly and cystic fibrosis
    • What is environmental variation?
      Changes caused by factors other than genes
    • How can identical twins show environmental variation?
      Different diets and lifestyles affect growth
    • What is speciation?
      When a species evolves into a new species
    • What is extinction?
      When a species is wiped out completely
    • What factors can cause extinction?
      Environmental changes, predators, and competition
    • What is Darwin's theory of natural selection?
      Survival of the fittest through natural variation
    • How does natural selection affect giraffes?
      Longer necks help them reach food
    • What is an advantageous allele?
      Allele that provides a survival advantage
    • What are the three domains of life in classification?
      • Archaea
      • Bacteria
      • Eukarya
    • What are the seven levels of classification?
      1. Kingdom
      2. Phylum
      3. Class
      4. Order
      5. Family
      6. Genus
      7. Species
    • What is a mnemonic for remembering the classification levels?
      Kevin's poor cow only feels good sometimes
    • What is the final topic mentioned in the video?
      Ecology
    • What should viewers do at the end of the video?
      Like and subscribe for more content