B6 Retrieval questions

• What does DNA code for?


  Proteins
• What is the name given to all of the genetic material in an organism?


  Genome
• A molecule of DNA is called a..

  Chromosome
• Which type of reproduction produces genetically different cells?

  Sexual
• Which type of reproduction produces genetically identical cells?


  Asexual
• Which type of reproduction involves two parents?

  Sexual
• What do we call offspring that are genetically identical to the parent?


  Clones
• What are gametes?


  Sex cells
• How many chromosomes are in a gamete?


  Half (Haploid)
• What is variation?


  Differences
• What is the chromosome combination that determines male sex?

  XY
• What is the chromosome that determines female sex?


  XX
• Characteristics you often have is called a..


  Phenotype
• A mix of alleles you have is called a..


  Genotype
• A different version of a gene is called a..

  Allele
• Having two different alleles for a characteristic is called..

  Heterozygous
• Having two of the same alleles for a characteristic is called..

  Homozygous
• What is mutation?


  A change in the DNA
• Variation can be genetic or..


  Environmental
• Which scientist developed the theory of evolution by natural selection?


  Charles Darwin
• What is survival of the fittest?


  When organisms that have the most suitable characteristics for an environment are more likely to survive
• What do we call the development of a new species?

  Evolution
• When no individual species are left it is called..

  Extinction
• What is the process called of selecting the best plants or animals and breeding them together to get the best possible offspring?


  Selective breeding
• Selective breeding is also known as..


  Artificial selection
• What is a drawback of selective breeding?


  Reduces genetic diversity
• What term is used to describe transferring genes between organisms?


  Genetic engineering
• Our understanding of how genes are inherited is mostly because of the work of..

  Mendel