Group items matching

in title, tags, annotations or url

This case study centers on symbiotic relationships between insects and bacteria using Drosophila melanogaster, the common fruit fly, and the recently discovered bacterial species Sodalis praecaptivus. Until recently, the only known Sodalis species of bacteria were symbiotically associated with several different species of insects. However, free-living non-symbiont Sodalis species are being tested in several different insect species to determine if they can transition into symbiotic relationships. A pre-class assignment (see Supplemental Materials) directs students to read an open access research journal article providing a comprehensive review of S. praecaptivus and describing an experimental weevil model that parallels that of the fruit fly. A PowerPoint presentation shown in class (see Supplemental Materials) provides further background before students work in small groups to complete the case study focusing on results from D. melanogaster and S. praecaptivus model experiments.  Although developed for a genetics course, this interrupted case is appropriate for an upper-level biology course. It can be completed within a 75-minute class meeting, or adapted for shorter time periods.

Séguin, a research scientist in forest genomics with the Canadian Forest Service, inserted bacterial DNA into spruces that effectively made them immune to spruce budworm, a pest that can chew needles off tens of millions of hectares of trees in a single outbreak. While there is controversy over genetic engineering, some scientists say it could also help fight climate change by creating trees that grow bigger, faster, resist disease and can even turn carbon into a stable white powder that falls to the ground - in other words, trees that would be better at pulling carbon from the atmosphere.

We are under attack - by germs. Drug-resistant bacteria are invading organisms, and hospitals are their favorite breeding ground. Scientists are studying the genetics of bacteria and trying to find

College Board- Biotechnology lab manual

Alternative labs list- AP biology teachers submit a curriculum for review and approval and must include laboratory exercises that align with their core ideas. Some of the recommended labs may be too expensive or too time consuming for your class. Listed below are some alternatives that may be acceptable as part of your overall biology curriculum.

Paul Andersen explains the two major portions of the molecular biology lab in AP Biology. He starts by discussing the process of transformation. He explains how you can use the pGLO plasmid to produce glowing E. coli bacteria. He then describes how you can use restriction enzymes and the process of gel electrophoresis to cut and separate DNA.

An outbreak of plague that affected four people and a dog in Colorado might be the first instance of person-to-person transmission of plague in the United States in 90 years, officials said Thursday. It started with a sick pit bull, and its owner, two vet techs and a close personal contact of the dog's owner all ended up infected. The dog died but all four people were treated with antibiotics and are okay.

Classroom resources to support Cell Day -Inside the Cell  - free poster -articles -images -crossword -interactice tour

Virtual lab activities