Which of the following sleep related breathing disorders usually begins with central apnea (no breathing effort) that is followed by obstructive apnea (breathing effort without air flow).

The patient presents with a sand-paper rash on trunk, no fever, does have occasional sore throat.  What is your diagnosis? Correct Answer: scarlet fever

The patient presents with a history of fever, up to 102.4, for 3 days.  At the office, the temperature is 99.6 with last fever reducer given 14 hours ago.  Mom noticed the rash this morning on the child’s trunk.  What is your diagnosis? correct answer: roseola

Bonus: Tautomerization of an adenine can result in the __________ of an A-T base pair into a ____ base pair.

Which of the following is FALSE about Gene Density?

What RNA molecule is widely used by the engineered CRISPR-Cas system for gene editing?

What structure present on chromosomes solves the end of replication problem for linear chromosomes?

The exchange of a purine for pyrimidine base is a _____ mutation.

If a sample of DNA contained 30% thymine, which of the following is CORRECT?

Which of the following best describes DNA?