Which of the following is a correct definition of genetics?
|A)||The study of transmission of traits from parent to offspring.|
|B)||The study of genes and traits defined by genes.|
|C)||The study of DNA.|
|D)||The study of variation between members of a species.|
Which statement about nucleic acids is not correct?
|A)||They are macromolecules.|
|B)||They are organic molecules.|
|C)||They are typically long, linear molecules.|
|D)||None; all of these statements are correct.|
What is the main function of DNA?
|A)||It stores information for protein synthesis.|
|B)||It can be mutated.|
|C)||It directs the process of protein synthesis.|
|D)||It provides energy for the cell.|
Identify the correct order of organization of genetic material, from largest to smallest.
|A)||Genome, chromosome, gene, nucleotide|
|B)||Gene, chromosome, nucleotide, genome|
|C)||Chromosome, gene, genome, nucleotide|
|D)||Chromosome, genome, nucleotide, gene|
Which statement is correct about Rieger syndrome in humans? (See Fig 1.1)
|A)||The gene which, when mutant, causes this syndrome is located on the X chromosome.|
|B)||This gene is required for production of an essential blood clotting factor, Factor XI.|
|C)||It is located on the same chromosome as genes which, when mutant, cause Huntington disease and Hepatocellular carcinoma.|
|D)||Rieger syndrome has not been demonstrated to have a genetic cause.|
Which of these might be a valid scientific reason for creating mice that glow green?
|A)||We thought they might make popular pets.|
|B)||It served as an effective demonstration that an extra gene could be incorporated into and expressed in most tissues of a model organism.|
|C)||Glowing mice might be effective "flashlights" in search and rescue applications.|
|D)||Glowing mice could be easily distinguished from unmanipulated animals.|
|A)||Can be described as a unit of heredity.|
|B)||Contains information to produce a particular protein.|
|C)||Affects traits at the cellular level.|
|D)||Can exist in many forms.|
|E)||All of the above.|
Haploid cells in the human body:
|A)||Are a typical example of human cells.|
|B)||Are caused by allelic variation.|
|C)||Are gametes, which allow sexual reproduction.|
|D)||Contain 46 chromosomes.|
Which field of genetics is the oldest?
Which technique is most likely to be used by a molecular geneticist?
|A)||Production of a new mutant allele of an interesting gene.|
|B)||Establishing crosses between genetic variants.|
|C)||Analysis of the amount of genetic variation in a population of individuals.|
|D)||Identification of a previously unknown species.|
Morphs are an example of which level of genetic variation?
|E)||All of the above|
Which is an example of a study that might be done by a transmission geneticist?
|A)||A comparison between many individuals indicates that the "short" variant of a particular gene seems to increase risk for alcoholism.|
|B)||DNA sequencing allows geneticists to determine the difference between the short and long variants of a newly discovered gene.|
|C)||Geneticists are able to clone and express a gene to produce human insulin.|
|D)||A geneticist collects family histories in order to study the mechanism of transmission of a genetic disorder.|
The human genome is distributed over 24 chromosomes.
Development of genetic technologies are often rejected at first even though they may be used to create great advances in medicine, agriculture, and many other fields.
Gene expression can be defined as the process of transcription and translation.
DNA is the most important macromolecule for correct cellular function.
The major difference between different cells in the same organism is that they have different DNA.
All sexually reproducing organisms are diploid.
Genetic composition of a species is stable over time.
Most traits are controlled by genetic variation.