Given the following sequences for one strand of a double- stranded oligonucleoti

Question

Given the following sequences for one strand of a double- stranded oligonucleotide: 5 ACCGTAAGGCTTTAG3/ (a) Write the sequence for the complementary DNA strand. (b) Suppose you know that the strand shown above had phosphate on both ends. Using an accepted nomenclature, write the sequence so as to show this. (c) Write the sequence of the RNA complementary to the strand shown above. (3 points) Some naturally occurring polynucleotide sequences arc palindromic, that is, they are self-complementary about an axis of symmetry. Such a sequence is TCAAGTCCATGGACTTGG AGTTCAGGTACCTGAACC Show how the structure might form a double hairpin, or cruciform, conformation. Indicate the center of symmetry in the sequence and the bounds of the cruciform.

Explanation / Answer

answer for the first question ;

1.complemetary strand;

3'' -TGGCATTCCGAATC 5''

2 . PHOSPHATE AT BOTH ENDS

the phosphate molecule is present at the 5prime end of the DNA strand . in both the strands .

3. RNA complemetary ;

3' UGGCAUUCCGAAUC 5''

ANSWER FOR THE SECOND QUESTION ;

These are formed at the double hairpin loops at the inverted repeats five prime side TCAAG AND 3 prime side of AGTTCA sequence in the complemetary DNA and 3 prime stand of one side GGTTC and five prime side CCAAG , they form the invertd repeats to form the hairpin loops in the ds DNA

Related Questions

Navigate

• Browse (All)
• Browse G
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.