Question

Biology benchmark 2 semester exam fall 24
Match the DNA strands to its complimentary portion

ATCCGGAAT
TACGGCTTA
ATCCGGATT
ATGGCCAAT


ATGCCGAAT
TAGGCCTAA
TACCGGTTA
TAGGCCTTA

Answer 1

To match the DNA strands to their complementary portions, we need to know that DNA strands pair with each other according to base pairing rules: Adenine (A) pairs with Thymine (T), and Cytosine (C) pairs with Guanine (G).

Given the strands:

1. **ATCCGGAAT**
2. **TACGGCTTA**
3. **ATCCGGATT**
4. **ATGGCCAAT**

And the complementary strands:

1. **ATGCCGAAT**
2. **TAGGCCTAA**
3. **TACCGGTTA**
4. **TAGGCCTTA**

### Matching:

1. **ATCCGGAAT** ↔ **TAGGCCTTA**
- ATCCGGAAT → TAGGCCTTA is the complement (A↔T, T↔A, C↔G, C↔G, G↔C, G↔C, A↔T, A↔T).

2. **TACGGCTTA** ↔ **ATCCGGAAT**
- TACGGCTTA → ATCCGGAAT is the complement.

3. **ATCCGGATT** ↔ **TAGGCCTAA**
- ATCCGGATT → TAGGCCTAA (complimentary pairing AT-TA, CC-GG, G-C).

4. **ATGGCCAAT** ↔ **TACCGGTTA**
- ATGGCCAAT ↔ TACCGGTTA (AT-TA, GG-CC, CC-GG).

### Summary of Matches:
- **ATCCGGAAT** matches with **TACGGCTTA**
- **TACGGCTTA** matches with **ATCCGGAAT**
- **ATCCGGATT** matches with **TAGGCCTAA**
- **ATGGCCAAT** matches with **TACCGGTTA**

Since **TACGGCTTA** and **ATCCGGAAT** are actually the same pairs, you can only match one pair correctly based on what was provided.

Let me know if you need any further help!