Evolutionary Biology and Human Genome Project Quiz
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Questions and Answers

What is the primary function of 'dark DNA'?

  • It is non-coding DNA
  • It influences visible traits
  • It is easily detected in genetic tests
  • It is difficult to detect due to technical limitations (correct)

What concept does the 'C-value enigma' relate to?

  • The size of the genome and organism complexity (correct)
  • The number of chromosomes in a cell
  • The rate of protein synthesis
  • The variability of gene expression

Which protein has been used as a molecular clock to study evolutionary timelines?

  • Cytochrome C (correct)
  • Insulin
  • Collagen
  • TATA-binding protein

What is the role of gene duplication in evolution?

<p>Leads to new genes and functions (B)</p> Signup and view all the answers

What is the significance of the 'RNA world' hypothesis in the context of evolution?

<p>It suggests RNA was the first genetic material (D)</p> Signup and view all the answers

What does the term 'orthologous' refer to in evolutionary genetics?

<p>Genes in different species that evolved from a common ancestral gene (D)</p> Signup and view all the answers

What is the main function of chaperone proteins in cellular processes?

<p>Protein folding (C)</p> Signup and view all the answers

How does alternative splicing contribute to protein diversity?

<p>By producing different proteins from the same gene (B)</p> Signup and view all the answers

What does Hox transcription factors primarily regulate?

<p>Transcription regulation (B)</p> Signup and view all the answers

What does the relatively modest increase in gene numbers through evolution suggest about protein evolution?

<p>Protein diversity arises from domain recombination (A)</p> Signup and view all the answers

What was Ernst Walter Mayr's contribution to evolutionary biology?

<p>Proposed the hypothesis 'Differences among species require different genes' (A)</p> Signup and view all the answers

What was a key finding of the Human Genome Project (HGP) regarding the number of genes in humans?

<p>Around 25,000 genes (A)</p> Signup and view all the answers

Which protein is used as an example of conservation across species?

<p>Cytochrome C (A)</p> Signup and view all the answers

What is the role of Hox genes in embryonic development?

<p>Determining the type of segment structures (D)</p> Signup and view all the answers

What is the 'homeobox' in the context of Hox genes?

<p>A DNA sequence in Hox proteins (D)</p> Signup and view all the answers

What is a major theme of Mayr’s hypothesis from the 1960s?

<p>Species differences require different genes (C)</p> Signup and view all the answers

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