MECHANISM OF CHANGE

    Cards (29)

    • ALLELE - also known as an allelomorph.
    • ALLELE - any one of two or more genes that may be present in a chromosome.
    • ALLELE - may occur in pairs.
    • ALLELE - It can also be in multiple alleles which in turn may
      affect the phenotype of a particular trait.
    • GENOME - the genetic material of organisms.
    • GENOTYPE - is the combination of alleles that an organism has.
    • GENOTYPE - An organism’s genotype can be homozygous or heterozygous.
    • PHENOTYPE - the expression of an allele. It is manifested on a trait.
    • NATURAL SELECTION - is one of the mechanisms of
      evolution.
    • NATURAL SELECTION - It tells us that organisms which have
      traits that increase theiR chances of survival
      allows the organism to
      reproduce more.
    • ARTIFICIAL SELECTION - is also known as selective breeding.
    • ARTIFICIAL SELECTION - It is the process where there is a human interference in a change over time. Particularly,
      humans choose desirable trait in an agricultural product or animal rather than allowing it to evolve naturally compared to natural selection.
    • ARTIFICIAL SELECTION - is evident in domestication.
    • DOMESTICATION - is the process of choosing a small group of
      organisms from the main population and select a desired trait for breeding.
    • GENETIC DRIFT - is also known as genetic sampling error or Sewall Wright effect.
    • GENETIC DRIFT - It is a process where a change in the gene pool
      of a small population happened by chance.
    • GENETIC DRIFT - can be seen in bottleneck effect
    • GENETIC DRIFT - occurs when a random event causes some individuals to die without reproducing while others reproduce more often than usual.
    • GENETIC DRIFT - of a small population happened by chance.
      It happens when the subsample, (the small, isolated population), from the large sample set (the large population), is not a
      representative of the of the large sample set.
    • GENETIC DRIFT - exists when there is a bottleneck effect.
    • BOTTLENECK EFFECT - occurs when the the size of a population
      diminished severely.
    • BOOTTLENECK EFFECT - It occurs when most organism were were killed leaving small and random assortment of survivors. This is
      brought about by natural disasters such as but not limited to earthquakes, floods, and fires.
    • MUTATION - is the process of changing the genome of a living organism’s cell or a virus nearly permanent and is transmissible to
      the descendants of the cell or virus.
    • MUTATION - can happen in two ways, somatic mutation and germinal mutation.
    • SOMATIC MUTATION - is the mutation in the DNA of a
      body of a multicellular organism and is transmitted to the descendant cells by DNA replication.
    • SOMATIC MUTATION - It results to a group or patch of cells having abnormal function, for instance, cancer.
    • GERMINAL MUTATION - is the mutation in egg or sperm cells. It may result to a an offspring whose cells carry all the mutation. For instance, a human genetic disease called cystic fibrosis.
    • RECOMBINATION - occurs during the process of meiosis.
    • RECOMBINATION - It involves the process of crossing over
      where gene sequence, referred to as linkage groups are distorted, which as a result exchanges segments to chromosomes
      during the process of separation.