DNA and Mutations

What are the four bases of DNA?

• Adenine, Thymine, Guanine, Cytosine

• Adenine, Uracil, Guanine, Cytosine

• Adenine, Thymine, Guanine, Uracil

• Cytosine, Thymine, Guanine, Adenine

What is a mutation?

• A change in the DNA sequence that can affect how genes function.

• A type of genetic disorder that is inherited from parents.

• A process by which organisms adapt to their environment over time.

• A technique used in genetic engineering to create clones.

What is the complementary strand of DNA for AGCTAGC?

• TCGATCG

• AGCTAGC

• GCTAGCT

• ATCGATC

What is a codon?

• A strand of three bases that get read on the DNA strand.

• A type of protein that helps in DNA replication.

• A sequence of amino acids in a protein.

• A molecule that carries oxygen in the blood.

What are the possible effects of a mutation?

• A mutation can be harmful, helpful, or neutral.

• A mutation always leads to harmful effects.

• A mutation has no effect on an organism.

• A mutation only results in beneficial changes.

Can a mutation be helpful for survival?

• Yes, if a mutation helps a creature survive in its environment, it can be passed on to future generations.

• No, mutations are always harmful to organisms.

• Yes, but only if the mutation occurs in a specific environment.

• No, mutations do not affect survival.

What type of mutation is represented by the change from GAC to CAC?

• Insertion

• Deletion

• Substitution

• Duplication

What is the significance of complementary base pairing in DNA?

• It ensures accurate replication and transcription of genetic information.

• It allows for the formation of hydrogen bonds between nucleotides.

• It determines the physical structure of the DNA molecule.

• It prevents mutations from occurring during cell division.

What is an insertion mutation?

• A mutation where one or more bases are added to the DNA sequence.

• A mutation where one or more bases are deleted from the DNA sequence.

• A mutation that changes one base to another base in the DNA sequence.

• A mutation that occurs only in RNA sequences.

What is DNA?

• Deoxyribonucleic Acid: the blueprint and directions for building an organism.

• Dioxyribonucleic Acid: a type of protein in cells.

• Deoxyribonucleic Acid: a form of RNA found in viruses.

• Deoxyribonucleic Acid: a carbohydrate that provides energy.