Every cell in the human body has two alleles that condense into single chromosomes held together by a centromere. These “sister” chromaatids replicate and pair with the newly made homologous chromosomes. In this exercise we will follow the movement of the chromosomes through meiosis I and II to create haploid […]

Biology in the news – Below are links for your first biology in the news assignment.  Please pick one of these topics and: 1. Agree or disagree with this comment using scientific literature (i.e. if you state an opinion or assumption you must back this up with scientific fact) 2. […]

Q. At puberty, the adolescent female body changes in both structure and function of several organ systems, primarily under an influence of changing concentrations of estrogen and other steroid hormones. How can one hormone, such as estrogen, mediate so several effects? a. Estrogen is kept away from the surface of […]

Case study: Part Two (graded) Further questioning for Cathy: Uses < 1 albuterol inhaler/year. Has noticed chest feels a little tight upon waking, has had increased morning headaches and white thin nasal discharge. She denies sputum. No new allergy triggers noted. She denies heartburn. PE: Height 5’5″, Weight 148 pounds […]