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DNA profiling, PCR and gel electrophoresis

Why are STRs useful in DNA profiling?

A

Chromosome number varies, producing different fragment lengths between people.

B

Gene number varies, producing different fragment lengths between people.

C

Base sequence is identical, producing matching fragment lengths between people.

D

Repeat number varies, producing different fragment lengths between people.

DNA profiling, PCR and gel electrophoresis Flashcards

  1. A Level
  2. /Biology
  3. /DNA profiling, PCR and gel electrophoresis

Flashcards for Edexcel A A Level Biology DNA profiling, PCR and gel electrophoresis, covering the key terms, definitions and processes you need to recall for Paper 1, Paper 2 and Paper 3. 24 cards, matched to the Edexcel A A Level Biology (9BN0) specification.

Flashcards