Organism Traits and Genetics Quiz

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Questions and Answers

Which of the following nitrogenous bases pairs with Guanine?

  • Cytosine (correct)
  • Adenine
  • Uracil
  • Thymine

Mutation refers to a change in the genetic code of an organism.

True (A)

What is the basic unit of heredity that codes for traits?

Gene

A process that modifies the genes of a living thing is called _________.

<p>genetic engineering</p> Signup and view all the answers

Match the following terms with their definitions:

<p>Adenine = A purine base that pairs with Thymine Chromosome = Thread-like structures containing genes Selective breeding = Choosing specific parents to produce desired traits Double helix = The physical structure of DNA</p> Signup and view all the answers

Which of the following terms refers to the process of modifying the genetic makeup of an organism?

<p>Genetic engineering (A)</p> Signup and view all the answers

Adenine pairs with Cytosine in DNA and RNA.

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

What is the term for the building blocks of proteins?

<p>Amino acids</p> Signup and view all the answers

Match the nitrogenous bases with their pairs:

<p>Adenine = Thymine Cytosine = Guanine Guanine = Cytosine Thymine = Adenine</p> Signup and view all the answers

Which term describes the process of selecting parents with specific characteristics to breed together?

<p>Selective breeding (D)</p> Signup and view all the answers

Adenine pairs with Cytosine in DNA.

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

What is the term for the double-stranded structure of DNA?

<p>double helix</p> Signup and view all the answers

________ is a change or mistake in an organism's DNA.

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

Match the following terms with their definitions:

<p>Gene splicing = Modification in which a single gene can code for multiple proteins Genetic engineering = Process of altering the genetic makeup of an organism Inheritance = Transmission of genes from parent to offspring Chromosome = Strands that contain hundreds or thousands of genes</p> Signup and view all the answers

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Study Notes

Organism Traits (7)

  • Adenine is a purine nitrogenous base that pairs with Thymine in DNA and RNA.
  • Amino acids are the building blocks of proteins.
  • Chromosomes are thread-like strands containing hundreds or thousands of genes.
  • Cytosine is a pyrimidine nitrogenous base that pairs with Guanine in DNA and RNA.
  • Double helix describes the physical structure of DNA.
  • Genes are the basic units of heredity that code for traits.
  • Guanine is a purine nitrogenous base that pairs with Cytosine in DNA and RNA.
  • Mutation is a mistake or change in a living thing's DNA.
  • Proteins are important nutrients made of amino acids.
  • Thymine is a pyrimidine nitrogenous base that pairs with Adenine in DNA and RNA.
  • Agriculture is another word for farming.
  • Gene splicing is a post-transcriptional modification where a single gene can code for multiple proteins.
  • Genetic engineering involves modifying or changing the genes of a living organism.
  • Gene modification is the process of altering an organism's genetic makeup.
  • Inheritance is the transmission of genes from parents to offspring.
  • Selective breeding involves choosing parents with desirable characteristics to breed together and produce offspring with those characteristics.
  • Sexual reproduction involves the combination of genetic information from two individuals of different sexes to create new organisms.

Organism Traits

  • Adenine is a nitrogenous base found in DNA and RNA, pairing with Thymine.
  • Amino acid is a building block of proteins.
  • Chromosome is a thread-like strand that contains genes.
  • Cytosine is a nitrogenous base in DNA and RNA, pairing with Guanine.
  • Double helix is the physical structure of DNA.
  • Gene is the basic unit of heredity responsible for traits.
  • Guanine is a nitrogenous base in DNA and RNA, pairing with Cytosine.
  • Mutation is a change in a living thing's DNA.
  • Protein is an essential nutrient made of amino acids.
  • Thymine is a nitrogenous base in DNA and RNA, pairing with Adenine.
  • Agriculture is another word for farming.
  • Gene splicing allows a single gene to code for multiple proteins through post-transcriptional modification.
  • Genetic engineering manipulates an organism's genes through modification.
  • Gene modification alters the genetic makeup of an organism.
  • Inheritance is transferring genes from parents to offspring.
  • Selective breeding intentionally chooses parents with desirable traits to produce offspring with those characteristics.
  • Sexual reproduction combines genetic information from two individuals of different sexes to create a new organism.

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