Biology Basics Quiz

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Questions and Answers

What unifies biology as a single, coherent field?

  • The ability to regulate internal environments
  • The presence of cells processing hereditary information (correct)
  • The diversity of life forms studied
  • The use of the scientific method

What is a major theme in biology that explains the unity and diversity of life?

  • Energy processing
  • Cellular organization
  • Regulation of internal environments
  • Evolution (correct)

What allows organisms to move, grow, and reproduce?

  • Regulation of internal environments
  • Cellular organization
  • Energy processing (correct)
  • Hereditary information

At what levels of organization do biologists study life?

<p>From molecular biology to the evolution of populations (B)</p> Signup and view all the answers

What has immensely diverse forms of life, including prokaryotic and eukaryotic organisms?

<p>Life on Earth (D)</p> Signup and view all the answers

What are Y-DNA haplogroups defined by?

<p>Mutations in the non-recombining portions of the Y chromosome (A)</p> Signup and view all the answers

What do Y-DNA haplogroups represent?

<p>Major branches of the Y-chromosome phylogenetic tree (C)</p> Signup and view all the answers

How many mutations does the human Y-chromosome accumulate per generation?

<p>Roughly two mutations (A)</p> Signup and view all the answers

When is Y-chromosomal Adam estimated to have lived?

<p>Roughly 236,000 years ago in Africa (C)</p> Signup and view all the answers

How can Y-DNA haplogroups be defined into subclades?

<p>By a terminal SNP, the SNP furthest down in the Y-chromosome phylogenetic tree. (B)</p> Signup and view all the answers

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