If a coding sequence in DNA read CAT, what would the anticodon of the associated tRNA read?

A. CAT D. CAU
B. GTA E. GAT
C. GUA


D

Biology & Microbiology

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In chordates, the ____ is a digestive system structure just posterior to the mouth

a. pharynx b. neural crest c. oral hood d. notochord e. cranium

Biology & Microbiology

Which pest has thrived in urban centers due to their ability to adapt rather quickly?

a. Fruit flies b. Crows c. Mice d. Bacteria e. Rats

Biology & Microbiology

What does ribisco do?

a. reduces CO2 to G3P b. regenerates RuBP with the aid of ATP c. combines electrons and H+ to reduce NADP+ to NADPH d. adds CO2 to RuBP in the carbon fixation stage e. transfers electrons from NADPH to 1,3 bisphosphoglycerate to prodcue G3P

Biology & Microbiology

A Case Study. The sputum from two patients was being tested for the presence of M. tuberculosis . Patient 1exhibited clinically obvious TB. Patient 2 did not exhibit clinically obvious TB, but had been in contact with patient 1. The process of testing the sputum samples from patients 1 and 2 included the use of a positive control (test sample/culture). M. tuberculosis was isolated from the sputum samples of both patients. DNA fingerprinting revealed that the isolates from patients 1 and 2 were not identical. Which of the following possibilities most likely occurred?

A) Both patients were infected from a common source B) Laboratory error resulted in one patient specimen being contaminated with another patient specimen C) Poor handling of the test culture allowed cross contamination to patient 2

Biology & Microbiology