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Genetics Review

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  • This process makes identical body cells to allow organisms to grow and repair tissue. Also used for Asexual reproduction.
    Mitosis
  • If a flower is homozygous dominant and purple, what will its GENOTYPE be?
    BB, two copies of the dominant allele
  • Traits of organisms are passed down from __________ to ____________.
    parent to offspring
  • What are changes in an organisms' DNA sequence called? (typos)
    Mutations
  • The study of heredity is called...
    Genetics
  • If a flower is heterozygous for its purple petals, what is it genotype?
    Bb, one dominant allele and one recessive
  • A A diagram used to show all the possible combinations of alleles that can result from a genetic cross
    punnett square
  • what are the traits that are passed from parents to their offspring called?
    inherited traits
  • What word means different versions or variants of a gene?
    Allele
  • True or False: All genetic mutations are harmful.
    False
  • These are found in the nucleus and are tightly coiled bundles of DNA
    Chromosomes
  • Indicated by a capital letter. The stronger form of an allele that always shows up when present.
    Dominant
  • An allele that can be masked by a dominant gene form. Indicated by a lowercase letter.
    Recessive
  • How many total chromosomes do humans have?
    46, 23 pairs
  • What process makes identical body cells?
    Mitosis
  • _________ are segments of DNA that determine traits.
    Genes
  • What process makes gametes (sperm and egg cells)
    Meiosis
  • The GENETIC makeup of an organism; an organism's combination of alleles.
    Genotype
  • Deoxyribonucleic Acid is usually referred to as _______
    DNA
  • Who is considered the father of modern genetics?
    Gregor Mendel
  • What is a segment of DNA that controls a specific trait called?
    Gene