You are excited because your lab is studying the first microorganisms retrieved from Mars! Interestingly, their genetic material consists of a single-stranded nucleic acid with six different nitrogenous bases. Like organisms from Earth, segments of the nucleic acid contain the code for making proteins. If the genetic code in these […]

Mary is 20 months old and has been hospitalized with a fever, irritability, and moderate dehydration. Blood work suggests a bacterial infection, with elevated neutrophils (>96%; normal: ~70%), although the chest radiograph and urinalysis are normal. Computed tomography (CT) indicated intracranial evidence for generalized edema with some compression of the […]

The fluorescence of each of a series of acidic solutions of quinine was determined five times. The results are given below. Concentration, ng ml-1 0 10 20 30 40 50 Fluorescence intensity 4 22 44 60 75 104 (arbitrary units) 3 20 46 63 81 109 4 21 45 60 […]

We wish to check if two RFLP markers in corn are linked. RFLP1 can be found in 4,000 bp and 5,000 bp lengths while RFLP2 can be found in a 3,000 bp and 6,000 bp. A homozygote 4,000 bp and 3,000 bp, was crossed with a homozygote 5,000 bp and […]