Virtual Labs

Tools

Aim

Theory

Pretest

Procedure

Simulation

Posttest

References

Feedback

Aim

Theory

Pretest

Procedure

Simulation

Posttest

References

Feedback

To analyze the sequence of a given DNA and find out sequence composition

Choose difficulty:

Beginner

Intermediate

Advanced

Identify the equation to calculate GC content (in percentage) in a given DNA sequence

a: ( (A+T) / A + T + C + G )) * 100 Explanation

Explanation

b: ( (G+C) / A + T + C + G )) * 100 Explanation

Explanation

c: ( (T+C) / C - G + A)) * 100 Explanation

Explanation

d: ( (A+C) / C + G )) * 100 Explanation

Explanation

Identify the one that determines the amount of G equals C, and the amount of A equals T

a: X-ray diffusion Explanation

Explanation

b: Chargaff’ rule Explanation

Explanation

c: DNA Sequencing Explanation

Explanation

d: None Explanation

Explanation

GC ratio analysis is applicable in

a: Understanding the statistical significance of a DNA sequence Explanation

Explanation

b: Ecological and evolutionary significance of species Explanation

Explanation

c: Identifying annealing temperature of a DNA sequence Explanation

Explanation

d: All the above Explanation

Explanation

Identify the reverse complement of ACCTGAG

a: TGGACTC Explanation

Explanation

b: GAGTCCA Explanation

Explanation

c: CTCAGGT Explanation

Explanation

d: GTCACCT Explanation

Explanation

According to Chargaff's rule, ratio of purines and pyrimidines in a DNA sequence

a: 2:1 Explanation

Explanation

b: 1:2 Explanation

Explanation

c: 1:1 Explanation

Explanation

d: 2:2 Explanation

Explanation

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