NAME: ________________________

7th - Heredity (01-04-10) Test

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5 Written Questions

5 Matching Questions

  1. The science that deals with the study of heridity is _____________.
  2. sex-linked gene
  3. Human height, eye color, and skin color are all traits controlled by _____________.
  4. some causes of mutations
  5. phenotype
  1. a genetics
  2. b
    The physical trait that shows as a result of a genotype. (TT = tall; Tt = tall; tt = short; YY = yellow; yy = white))
  3. c chemicals, x-rays, and radioactive substances
  4. d some allele are on the sex chromosomes like color-blindness, which is sexlinked on the X chromosome.
  5. e genes

5 Multiple Choice Questions

  1. He was a monk who was born in Austria in 1822. He experimented with pea plants. He is known as the "Father of Genetics".
  2. replacing abnormal genetic material with normal genetic material
  3. sex-linked gene
  4. these genetic disorders occur when both parents have a recessive allele for a disorder; the parents my be heterozygous and not show any symptoms of a disorder, but if the child inherits a recessive gene from each parent, then the child will have ta recessive genetic disorder like cystic fibrosis.
  5. experimenting with biological and chemical methods to change the arrangement of DNA that makes up a gene

5 True/False Questions

  1. hereditythe passing of traits from parents to offspring


  2. heterozygousthe two alleles for an organism are exactly the same (TT or tt). This is also known as Purebred..


  3. recessive factora factor that is covered up by a dominant factor


  4. gender determination
    The female only provides an X chromosome, but the male may fertilize an egg with either an X or Y. If an X fertilizes the egg, then XX or a girl will result. If a Y fertilized the egg, then XY or a boy will result.


  5. pedigreeit is a visual tool for following traits through generations of a family


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