Bihar BSEB Intermediate Biology case studies
Bihar BSEB Intermediate Biology · Put your knowledge to work in context.
The Bihar School Examination Board (BSEB) Intermediate Biology examination is the Class 12 Biology paper taken by science-stream students in Bihar who are completing the two-year Intermediate (+2) course. It is a school-leaving and university-entrance credential: results feed directly into admission decisions at Bihar universities and are widely used alongside competitive entrance examinations for medical, agricultural, and life-science courses. The Bihar BSEB Intermediate Biology case studies are 5 cases and about 4,073 words.
1Three Years of Infertility: Choosing the Right Assisted Technique
Sunita, 33, and Rakesh, 38, have been trying to conceive for three years. Sunita's cycles are irregular, ranging from 35 to 50 days, and an ultrasound shows polycystic ovaries with an anti-Mullerian hormone level of 7.8 ng/mL.
788 words, about 4 min2A Blood Group That Should Not Be Possible
A district hospital types a newborn's blood as group O, Rh positive, during a workup for jaundice. The mother is group O and the father group AB, and their first child, now four years old, is group B.
852 words, about 4 min3Why the Insulin Batch Was Inactive
A small fermentation unit tries to make human insulin in Escherichia coli. A technician homogenises leftover human pancreatic tissue from a surgery, extracts high-molecular-weight DNA, digests it with BamHI, ligates the fragments into the BamHI site of pBR322 and transforms E.
804 words, about 4 min4Fish Kill at Dawn in a Sewage-Fed Pond
A 12-hectare pond on the edge of a town receives untreated domestic sewage from a new housing colony through a single drain. In May, residents report a dense green surface scum, first of Microcystis and later of floating filamentous algae, a foul smell, and hundreds of dead fish found at dawn.
833 words, about 4 min5Pale Tomato Leaves in a Salty Polyhouse
A farmer in Nalanda grows tomato in a 0.5-hectare polyhouse. Forty-five days after transplanting, the lower leaves show yellowing between the veins while the veins stay green; the pale band moves upward and the oldest leaves develop brown necrotic patches.
796 words, about 4 min