Biochemistry - Genetic Code and Regulation - Discussion
Discussion Forum : Genetic Code and Regulation - Section 1 (Q.No. 11)
11.
The sequence of one strand of DNA is: 5' ATTGCCA 3', what is the sequence of the other strand?
Discussion:
11 comments Page 1 of 2.
Rathi said:
1 decade ago
@Olumide Adewumi.
Why option B is correct?
According to Erwin Chargaff A bonds with T and C with G i.e A<->T and C<->G.
5' - 3'
A - T
T - A
T - A
G - C
C - G
C - G
A - T
3' - 5'
So 3' TAACGGT 5' or 5' TGGCAAT 3' is the Answer.
B is correct answer. Hope its clear now.
Why option B is correct?
According to Erwin Chargaff A bonds with T and C with G i.e A<->T and C<->G.
5' - 3'
A - T
T - A
T - A
G - C
C - G
C - G
A - T
3' - 5'
So 3' TAACGGT 5' or 5' TGGCAAT 3' is the Answer.
B is correct answer. Hope its clear now.
(1)
Bela said:
8 years ago
B is the correct answer because you have to read it 5' to 3'. The complementary strand is 3' TAACGGT 5' but you have only answers with 5' to 3' so the right answer is 5' TGGCAAT 3'.
Hope I have helped :).
Hope I have helped :).
Olumide Adewumi said:
1 decade ago
Option B is a very wrong answer, the second strand is a complimentary strand and according to Erwin Chagaff A bonds with T and C with G, that is why the number of A=T and C=G.
Salum Makamba said:
9 years ago
"B" is a wrong answer. The correct answer is"A". Always DNA is formed in a 5' to 3' direction. Antiparallel arise only during pairing and not during formation.
Ayesha momina said:
5 years ago
Option B is the correct answer.
Because DNA one strand in 5'to3' direction but another complementary strand in 3'to5' directions.
Because DNA one strand in 5'to3' direction but another complementary strand in 3'to5' directions.
(1)
Dexcy said:
9 years ago
This is absolutely wrong. A is the Correct answer. Option B is the reading for mRNA. Not for the complementary strand of the DNA.
Harnisha said:
9 years ago
@Rathi.
Why did you read the sequence of the other strand from the bottom?
Why did you read the sequence of the other strand from the bottom?
Shallaw Haji Ahmad said:
6 years ago
Sure A is the suitable answer. I also agree.
AsungJr said:
6 years ago
Option B is the correct answer. I agree.
Kandamba said:
6 years ago
A is the correct answer. I also agree.
Post your comments here:
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers