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Home Q & A Board Biology-Related Homework Help General Biology
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michaela40 michaela40
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6 years ago
Which of the following statements about DNA profiles is false?
  1.Individuals vary in the length of certain DNA sequences called short tandem repeats located at many different chromosomal sites.
  2.Each locus can have dozens of alleles of short tandem repeats (STRs).
  3.In the U.S., DNA profiles utilize a standardized set of 13 STRs.
  4.STRs are amplified by PCR before Southern blotting and visualization.
  5.Due to environmental influences, STRs differ slightly between identical twins.
  6.Even very old samples of DNA can yield sequences that are appropriate for DNA profiling.

Question 2

To make a transgenic Huntington Disease mouse, a copy of the mutant human HD gene was cloned into a vector, and the next step was to _____.
  1.transfer the vector directly into the foster mother mouse
  2.microinject the vector into the nucleus of a fertilized mouse egg
  3.transform bacteria using the engineered plasmid
  4.insert the sequence into the genome of a virus and infect a mouse with the virus
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FnsameFnsame
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6 years ago
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michaela40 Author
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#2
6 years ago
What an excellent community, thanks for answering
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