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TLS Online TPP Program

#Question id: 4254

Which of the following statements is the most current description of a gene?

#Unit 3. Fundamental Processes

  1. a unit of heredity that causes formation of a phenotypic characteristic

  2. a DNA subunit that codes for a single complete protein

  3. a DNA sequence that is expressed to form a functional product: either RNA or polypeptide

  4. a discrete unit of hereditary information that consists of a sequence of amino acids

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TLS Online TPP Program

#Question id: 9052

#Unit 9. Diversity of Life Forms

Which of the following causes seasons on Earth?
TLS Online TPP Program

#Question id: 9183

#Unit 9. Diversity of Life Forms

If you are interested in observing a relatively simple community structure in a clear water lake, you would do well to choose diving into ________.
TLS Online TPP Program

#Question id: 33496

#Unit 2. Cellular Organization

When alleles of the same locus are compared, a difference in a single nucleotide is called a single nucleotide polymorphism (SNP). On average, one SNP occurs for approximately every 
TLS Online TPP Program

#Question id: 12437

#Unit 10. Ecological Principles

An earthquake that kills an entire population of koalas would be
TLS Online TPP Program

#Question id: 1076

#Unit 4. Cell Communication and Cell Signaling

Why are viroids resistant to nucleases?