TLS Online TPP Program

#Question id: 4257


An original section of DNA has the base sequence AGCGTTACCGT. A mutation in this DNA strand results in the base sequence AGGCGTTACCGT. What type of mutation does this change represent?

#Unit 3. Fundamental Processes
  1. a missense mutation

  2. a point mutation

  3. a silent mutation

  4. frameshift mutation

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TLS Online TPP Program

#Question id: 5215

#Unit 9. Evolution & Diversity of Life Forms

What is it about short tandem repeat DNA that makes it useful for DNA fingerprinting?

TLS Online TPP Program

#Question id: 5216

#Unit 9. Evolution & Diversity of Life Forms

Alu elements account for about 10% of the human genome. What does this mean?

TLS Online TPP Program

#Question id: 5217

#Unit 9. Evolution & Diversity of Life Forms

Multigene families include two or more nearly identical genes or genes sharing nearly identical sequences. A classical example is the set of genes for globin molecules, including genes on human chromosomes 11 and 16. How might identical and obviously duplicated gene sequences have gotten from one chromosome to another?

TLS Online TPP Program

#Question id: 5218

#Unit 9. Evolution & Diversity of Life Forms

Several of the different globin genes are expressed in humans, but at different times in development. What mechanism could allow for this?

TLS Online TPP Program

#Question id: 5219

#Unit 9. Evolution & Diversity of Life Forms

What is it that can be duplicated in a genome?

TLS Online TPP Program

#Question id: 5220

#Unit 9. Evolution & Diversity of Life Forms

In comparing the genomes of humans and those of other higher primates, it is seen that humans have a large metacentric pair we call chromosome #2 among our 46 chromosomes, while the other primates of this group have 48 chromosomes and any pair like the human #2 pair is not present; instead the primate groups each have two pairs of midsize acrocentric chromosomes. What is the most likely explanation?