#Question id: 1343
#Unit 4. Cell Communication and Cell Signaling
Which of the following is not an example of a type of extracellular matrix?
#Question id: 391
#Unit 1. Molecules and their Interaction Relevant to Biology
In a hospital laboratory, a 10.0 mL sample of gastric juice, obtained several hours after a meal, was titrated with 0.1 M NaOH to neutrality; 7.2 mL of NaOH was required. The patient’s stomach contained no ingested food or drink, thus assume that no buffers were present. What was the pH of the gastric juice?
#Question id: 7092
#Unit 5. Developmental Biology
A gap gene mutation might cause which of the following defects in the embryonic body plan?
#Question id: 15857
#Unit 12. Applied Biology
#Question id: 5781
#Unit 8. Inheritance Biology
A ____ mutation affects the phenotype only under certain conditions.