SCIENCE SUMMATIVE PREPARATION

• Genetics - It is a branch of biology concerned with the study of genes, genetic variation and heredity in organism.
• Inheritance - A process by which genetic information is passed on from parents to child.
• Genotype - is the genetic makeup of organism
• Heterozygous - This means having two different alleles of a particular gene.
• A Punnett square is a graphical representation of the possible genotypes of an offspring arising from a particular cross or breeding event.
• Variation - Any difference between cells, individual organisms or groups of organism of any species.
• Gene - It is a unit of heredity; a section of DNA that codes for a specific trait.
• Seven Different Traits

  A) purple

  B) white

  C) terminal

  D) axial

  E) short

  F) tall

  G) round

  H) wrinkled

  I) yellow

  J) green

  K) inflated

  L) constricted

  M) yellow

  N) green

  
• Non-Mendelian Inheritance - This is a type of inheritance wherein the patterns of phenotypes does not coincide with those that was presented in the Mendelian Law of inheritance
• Incomplete Dominance - It is a form of intermediate inheritance in which one allele does not completely dominate another allele, resulting in a new phenotype.
• Codominance - Both alleles are expressed equally in the phenotype of the heterozygote
• Multiple Alleles - A gene that is controlled by more than two alleles.
• The Four Blood Types

  A) Blood Type A

  B) Blood Type AB

  C) Blood Type B

  D) Blood Type O