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If the frequency of thymine in a DNA is 22%, what is the frequency of guanine?

If the frequency of thymine in a DNA is 22%, what is the frequency of guanine? What is the monomer of a nucleic acid? List its components. Who (which scientist(s)) used bacteriophages in their experiments? Why? What is bacterial transformation? List the types of gene mutation.

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If the frequency of thymine in a DNA is 22%, what is the frequency of guanine?

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  1. If the frequency of thymine in a DNA is 22%, what is the frequency of guanine? • What is the monomer of a nucleic acid? List its components. • Who (which scientist(s)) used bacteriophages in their experiments? Why? • What is bacterial transformation? • List the types of gene mutation. • When does crossing over occurs? • When in the cell cycle does replication occur?

  2. List three differences between the replication of the lagging strand and the leading strand. • List three differences between the chromosome behavior during mitosis and meiosis. • Define nondisjunction and name one of its consequences. • Name two differences between spermatogenesis and oogenesis. • Define codominance. • Define the law of independent assortment.

  3. An animal has a diploid number 8. During meiosis, how many chromatids are present • In the tetrad stage • In late telophase of the first meiotic division • In metaphase of the second meiotic division • Define gene linkage. • Define epistasis. • The ABO blood type locus has been mapped on chromosome 9. A father who has type AB blood and a mother who has type O blood has a child with trisomy 9 and with A blood. Can you tell from the information in which parent the nondisjuction occurred? Explain.

  4. Which one of Mendel’s laws relates to the inheritance of alleles for a single character? Which law relates to the inheritance of alleles for two characters in a dihybrid cross? • In tigers, a recessive allele causes the absence of fur pigmentation (white color) and a cross-eyed condition. If two heterozygous tigers to this gene are mated, what percentage of their offspring will be cross-eyed? White? What type of inheritance is this?

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