MGG Exam 4 questions well answered graded A+ 2025/2026

MGG Exam 4 questions well answered
graded A+ 2025/2026

A FASTA file always begins with a:

a. <

b. @

c. /

d. > - correct answer ✔✔D



Besides the > sign, the first line of a FASTA file includes:

a. the read quality data

b. the sequence

c. the accession number for the sequence

d. the type of sequencing equipment used in obtaining the sequence - correct answer ✔✔C



The second line of a FASTA file comprises:

a. the sequence

b. the read quality data

c. the accession number for the sequence

d. the type of sequencing equipment used in obtaining the sequence - correct answer ✔✔A



A FASTQ file always begins with a:

a. <

b. >

c. @

, d. / - correct answer ✔✔C



The second line of a FASTQ file comprises:

a.the read quality data

b. the accession number for the sequence

c. the sequence

d. the type of sequencing equipment used in obtaining the sequence - correct answer ✔✔C



The fourth line of FASTQ line comprises:

a. the accession number for the sequence

b. the type of sequencing equipment used in obtaining the sequence

c. the read quality data

d. the sequence - correct answer ✔✔C



A PHRED score of 40 for a particular base call corresponds to the probability of 1 base call error
in how many base calls? [Note: this is a Review Quiz question; you won't be asked to memorize
the formula for the exam]

a. 40

b. 4,000

c. 10,000

d. 40,000 - correct answer ✔✔C



What does a PHRED score of 30 or above indicate?

a. Low error rate for the entire read; acceptable quality

b. Low error rate for that base call; acceptable quality

c. High error rate for that base call; unacceptable quality

d. High error rate for the entire read; unacceptable quality - correct answer ✔✔B