7. which of the following is a characteristic of mutations in dna? course hero

What is the cause of mutation in DNA?

D. Mutations can only be caused by environmental factors such as radiation. A. Mutations can spontaneously occur during DNA replication. To reproduce, bacteria clone themselves through an asexual process called binary fission.

Where do mutations occur in an organism?

B. Mutations can only occur in the body cells of an organism. C. Mutations can only occur in the sex cells of an organism. D. Mutations can only be caused by environmental factors such as radiation. A. Mutations can spontaneously occur during DNA replication.

Is it true that humans can manipulate their DNA?

False, scientists have been manipulating DNA for some time. Diabetic humans inject themselves with human insulin. However, the human insulin is made by a bacterium called Escherichia coli (E. coli). This is a result of which method of DNA manipulation?

What happens if you don't have enough nucleotides to synthesize DNA?

Nothing will happen because there are no nucleotides from which to synthesize the new DNA. A scientist uses techniques that allow her to determine that a person left DNA at a crime scene. The scientist used True or false: DNA profiling relies on matching entire genomes.

How do mutations affect genes?

Sometimes, gene variants (also known as mutations) prevent one or more proteins from working properly. By changing a gene's instructions for making a protein, a variant can cause a protein to malfunction or to not be produced at all.

What are point mutations quizlet?

changes in a single nucleotide pair of a gene.

Which type of mutation has occurred?

Types of Changes in DNAClass of MutationType of MutationHuman Disease(s) Linked to This MutationPoint mutationSubstitutionSickle-cell anemiaInsertionOne form of beta-thalassemiaDeletionCystic fibrosisChromosomal mutationInversionOpitz-Kaveggia syndrome5 more rows

How do mutations affect an organism?

Mutations can affect an organism by changing its physical characteristics (or phenotype) or it can impact the way DNA codes the genetic information (genotype). When mutations occur they can cause termination (death) of an organism or they can be partially lethal.

What are DNA mutations quizlet?

mutation. any change in the genetic message, in DNA bases or chromosome... results from errors in DNA replication or exposure to radiation, chemicals, or viruses. germ line cell.

What is a gene mutation quizlet?

gene mutations. spontaneous changes in DNA (nucleotide) sequence of a gene. Caused by mistakes made during replication or by mutagens. muatagens.

What characteristics do mutations have?

A mutation is a change in a genetic sequence. Mutations include changes as small as the substitution of a single DNA building block, or nucleotide base, with another nucleotide base.

What are DNA mutations?

A mutation is a change in the sequence of genetic letters, called bases, within a molecule of DNA.

Which of the following is a cause of a DNA mutation?

Mutations can result from errors in DNA replication during cell division, exposure to mutagens or a viral infection.

Which of the following is true about mutation?

The correct answer to this question is B. They always cause a change to an organism's genotype. Regardless of the cause of the change, a DNA sequence...

Which characteristic of a protein may change during a DNA mutation?

What are mutations, and how can they affect proteins? - Mutations are permanent changes in the DNA sequence of a gene. - Mutations can affect the shape of the protein that is produced. - A change in the shape of the protein affects the function of the protein, which may affect the trait that is seen.

Which of the following is the most likely explanation for how a mutation in the DNA could result?

Which of the following is the most likely explanation for how a mutation in the DNA could result in the loss of the carboxyl terminus of the HBB protein? The mutation changes a codon in the coding region of the HB transcription to a stop codon such that translation terminates earlier than it should.

Why is the diagram of DNA replication not accurate?

The diagram is not accurate because it suggests that after replication, you end with entirely new and original DNA molecules.

How does a virus make DNA?

When a virus of this type takes over a host cell, it makes DNA from its RNA. The viral DNA is then used to make an RNA copy, which is used to make viral proteins. In all cells, the flow of genetic information is from DNA à RNA à proteins. Explain how this differs from viruses (which are not considered cells) like HIV.

What are the steps of transcription?

List the following steps of transcription in order: RNA polymerase makes RNA; mRNA leaves the nucleus; RNA polymerase binds the promoter; RNA splicing. RNA polymerase binds the promoter, RNA polymerase makes RNA, RNA splicing, and mRNA leaves the nucleus.

What is the terminator of a gene?

True or false: The terminator is the sequence of DNA in front of the gene that tells the RNA polymerase where to begin transcription. If false, make it a correct statement. False, the terminator is the sequence of DNA at the end of the gene that tells the RNA polymerase to stop transcription.

Why is mRNA a good name?

mRNA is a good name because it contains the "message," or code, for how to make a protein, and transfers it from the nucleus to the ribosomes in the cytoplasm.

What are the steps of DNA replication?

Place the following steps of DNA replication in the proper order: DNA fragments are fused together; double helix is pulled apart; new strands of DNA are synthesized. Double helix is pulled apart, new strands of DNA are synthesized, and DNA fragments are fused together .

What is the name of the method used to increase the number of copies of DNA?

A method for quickly increasing the number of copies of a piece of DNA is called. PCR (polymerase chain reaction). True or false: If a criminal leaves behind even a single cell at the crime scene, a scientist can make many copies of specific DNA sequences from that cell. If false, make it a true statement.