For a particular rabbit breed, black fur (B) is dominant to…

For a particular rabbit breed, black fur (B) is dominant to brown fur (b), long ears (L) are dominant to short ears (l).  The genes for the fur color and ear length are on different chromosomes. You have a P generation with two true- breeding rabbits – one exhibits both dominant traits and the other exhibits both recessive traits. You cross the true-breeding rabbits and get several F1 offspring. You then cross two F1 individuals.  What gametes are made by the F1 individuals?

You put yeast cells in a fermentation vessel with water, mal…

You put yeast cells in a fermentation vessel with water, malt (a source of glucose), and hops (flavoring). The yeast  cells carry out cellular respiration and eventually use up all the oxygen in the vessel. Which of the following is TRUE regarding the yeast in this anaerobic environment? Select all correct choices.

To move quickly, a breed of domesticated rabbit called saute…

To move quickly, a breed of domesticated rabbit called sauteur d’Alfort sends its back legs sky high and walks on its front paws. That strange gait (handstand gait) may be the result of a gene called RORB, which is tied to limb movement.   (you do not have to watch the six second video to answer the question)   Imagine the pedigree below belongs to a family of rabbits where some members have the handstand gait.  Based on this pedigree, what is the best conclusion regarding the mode of inheritance of this trait? What is the genotype of individual II-8? If II-5 and II-6 had bunnies, what would be their phenotype?     M. Carneiro et al. A loss-of-function mutation in RORB disrupts saltatorial locomotion in rabbits. PLOS Genetics. Published online March 25, 2021. doi: 10.1371/journal.pgen.1009429.   

You are studying mice that are obese due to a mutation in th…

You are studying mice that are obese due to a mutation in the gene encoding the leptin receptor.  The obese phenotype is an autosomal recessive condition.    Which of the following statements is ACCURATE regarding obese mice with a defect in the leptin receptor?