Page 07 12. Which of the following diagrams represents the sequence of stages involved in mitosis? Telophase Prophase Prophase Anaphase Anaphase Metaphase Anaphase Prophase Metaphase Anaphase Metaphase Telophase Prophase Telophase Telophase Metaphase C B A D 13. Bacteriophage M13 is a virus that can infect bacteria. When bacteria in the lab are infected with M13, it is essential to use the correct ratio of one virus particle to two bacterial cells. A 0·25 cm3 sample of an E. coli culture having a concentration of 8 × 108 cells per cm3 is placed into a tube. What volume of a bacteriophage stock having a concentration of 2 × 109 bacteriophage per cm3 should be added to the cell sample to give a bacteriophage to bacteria ratio of 1:2? A 0·05 cm3 B 0·2 cm3 C 5 cm3 D 20 cm3 [Turn over
Get full Socratic AI guidance on this question — free in the Applaa desktop app
Appy Buddy guides you step-by-step toward the answer without giving it away. Type your attempt and get instant, mark-scheme-aware clues that teach you to think like an examiner.
Join Applaa Community
Create your own games, learn AI concepts, program interactive apps, and share with a kid-safe community approved by parents. Free forever on Windows and Mac.
Available for Windows and macOS · COPPA Compliant
Exam Specification Info
This question is part of the UK A-Level Biology syllabus. In the actual exam, structured questions typically require linking specific keywords to gain full marks. Applaa helps you drill these topics.
While Other Kids Get an AI Head Start, Is Yours Falling Behind?
Give your child the same AI app-building, exam prep and tutoring edge — free for the first month, no credit card needed.
Join 10,000+ students building their first AI-powered apps with Applaa