During which phase are sister chromatids separated and pulled to opposite poles of the cell?

A cell biologist produces a karyotype of mouse somatic cells arrested in mitosis. She sees 40 chromosomes, which is completely normal for mice. Based on this information, what is the haploid number of chromosomes for mice?

At the end of oogenesis in humans:

Homologous chromosomes pair along their length during prophase I of meiosis. While two homologues are paired, genetic exchange may occur between them in a process called _________

Which of the following is the MOST appropriate dose of activated charcoal for a 45-pound child?

When attempting resuscitation of a child with pulseless electrical activity, you should:

The MOST important initial treatment for a child in respiratory failure due to suspected croup is:

You are dispatched to a daycare center for a 5-year-old girl with trouble breathing. Upon arriving at the scene, you assess the child and note that she is responsive to pain only, has weak intercostal retractions, and is breathing at a slow rate with shallow depth. You should:

Epiglottitis in children:

A 6-year-old girl who has been running a fever for the past 2 days presents with lethargy and tachycardia. Her heart rate is 170 beats/min and varies with activity. Her skin is cool and clammy, and her capillary refill time is 4 seconds. The cardiac monitor reveals a narrow complex tachycardia with a rate that varies between 150 and 170 beats/min. You should: