153k views
0 votes
During electrophoresis, the band with fragment A travels the same length along the gel as the band with fragment B. The band with fragment A is darker than the band with fragment B. What can you infer from this?

1) Fragment A has a higher molecular weight than fragment B
2) Fragment A has a lower molecular weight than fragment B
3) Fragment A has a higher charge than fragment B
4) Fragment A has a lower charge than fragment B

User Ashfaque
by
8.5k points

1 Answer

6 votes

Final answer:

Fragment A has a higher molecular weight than Fragment B.

Step-by-step explanation:

During electrophoresis, the band with fragment A travels the same length along the gel as the band with fragment B. The band with fragment A is darker than the band with fragment B. From this, we can infer that Fragment A has a higher molecular weight than Fragment B. The darkness of the band indicates a higher concentration of DNA, which is likely due to the larger size of Fragment A.

User Huy Hoang Pham
by
8.7k points
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.