Blog

Identify all of the following choices that are examples of causes of induced mutations.

Which of the following is NOT true regarding how genetic variants/mutations occur and result in genetic diseases and disorders?

In dairy cattle, milk yield and compositions are the most important economical traits. These traits are controlled by genes such as GHR (Growth Hormone Receptor). Your prized cattle, Moostache, has greatly increased milk production, and her genome reveals the variant of GHR that has been associated with increased milk production. A lab collects mammary cells from your prized cattle, Moostache, and uses somatic cell nuclear transfer to clone Moostache. The resulting blastocyst is placed into a surrogate mother to complete develpment and after several months the clone Mini Moostache is born. What type of cloning is this an example of?

A yeast strain was exposed to a chemical mutagen. As expected, exposure to mutagen resulted in a DNA sequence change in an essential gene (required for survival) you examined. Yet this mutation did not result in any lethal phenotype (cause death). Which of the following answers would BEST explain this apparent discrepancy?

The World Anti-Doping Agency currently bans gene doping.

At this point, the FDA will not even consider approving a gene therapy that involves using CRISPR/Cas9 technology to edit somatic cells. 

If you are to have genetic testing done which of the following protections is NOT provided by the Genetic Information Non-Discrimination Act (GINA)?

The 2023 Guardian article discusses the positive impacts of delaying fatherhood on children’s health, with older fathers contributing 1-2 fewer SNPs/year than younger fathers.   

The recent cloning of two endangered black-footed ferrets marks the third successful cloning of black-footed ferrets from frozen tissue. 

Refer to the diagram below to answer the following questions. Which karyotype(s) represents the cell(s) that would be used for cloning? [1] Which karyotype(s) represents the cell(s) that would be used for three-parent babies? [2]