inheritance

• allele


  different form of a gene
• homozygous


  genes are the same
• heterozygous

  genes are different
• genotype


  what genes you have
• phenotypes


  what characteristics you have
• what are the 2 different types of cell division and give two examples of it?

  mitosis-are diploids and they occur in plants .they involve in growth and repair . they contain 2 daughter cells meiosis-are haploids and they occur in gametes for sexual reproductions .they contain 4 different daughter cells
• give 2 types of genetic disorder

  polydactyl-having extra finger or a toe --caused by a dominant allele cystic fibrosis-producing a lot of mucus blocking air passages and the pancreas--caused by a recessive allele
• what is genetic engineering

  taking a gene for a specific protein from one species
• STEPS OF GENETIC ENGINEERING

  1.use enzymes to cut out gene 2.take out plasmid from bacteria cut open 3.insert insulin gene 4.plasmid multiplies within bacteria
• whats an good way of genetic engineering?

  producing insulin
• an advantage of genetic engineering

  +produce medicine +may reduce the use of pesticides
• disadvantage for genetic engineering

  +lack of evidence that they are safe for human health long term +concern that the gm plant may reproduce wild plants
• EXAM QUESTION_ whys it advantage to make crop plants resistance

  + herbicides kills weed but doesn't kill crops +kills weed so less competition +crops will grow better and higher yield