Genetics and Heredity Quiz

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Questions and Answers

What is heredity?

  • The passing on of traits from parents to their offspring through asexual or sexual reproduction (correct)
  • The complete set of observable traits of an organism
  • The study of genetics in biology
  • The process of species evolving by natural selection

What is genotype?

  • The complete set of genes within an organism's genome (correct)
  • The passing on of traits from parents to their offspring
  • The study of genetics in biology
  • The complete set of observable traits of an organism

What is phenotype?

  • The study of genetics in biology
  • The passing on of traits from parents to their offspring
  • The process of species evolving by natural selection
  • The complete set of observable traits of the structure and behavior of an organism (correct)

What is DNA?

<p>A molecule that encodes genetic information (A)</p> Signup and view all the answers

Which example illustrates a trait that is not inherited?

<p>Suntanned skin from the interaction between genotype and sunlight (C)</p> Signup and view all the answers

Through heredity, variations between individuals can accumulate and cause species to evolve by natural ______

<p>selection</p> Signup and view all the answers

The study of heredity in biology is ______

<p>genetics</p> Signup and view all the answers

Inherited traits are controlled by ______

<p>genes</p> Signup and view all the answers

The complete set of observable traits of the structure and behavior of an organism is called its ______

<p>phenotype</p> Signup and view all the answers

Heritable traits are known to be passed from one generation to the next via ______, a molecule that encodes genetic information

<p>DNA</p> Signup and view all the answers

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Study Notes

Heredity and Genetics

  • Heredity is the passing of traits from parents to offspring through the transmission of genetic information.

Key Concepts

  • Genotype refers to the genetic makeup of an organism, which is the set of genes an individual possesses.
  • Phenotype refers to the physical and behavioral characteristics of an organism that result from the interaction of its genotype and the environment.

DNA and Inheritance

  • DNA (Deoxyribonucleic acid) is a molecule that encodes genetic information and is responsible for passing heritable traits from one generation to the next.
  • DNA is the molecule that carries genetic information from one generation to the next.

Evolution and Heredity

  • Through heredity, variations between individuals can accumulate and cause species to evolve by natural selection.
  • The study of heredity in biology is genetics.

Traits and Characteristics

  • Inherited traits are controlled by genes.
  • The complete set of observable traits of the structure and behavior of an organism is called its phenotype.
  • Traits that are not inherited, such as a scar from an injury, are not passed down to offspring.

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