Which statement about Thermus aquaticus is false?
a. The DNA polymerase from T . aquaticus is used in molecular biology for a procedure called polymerase chain reaction (PCR).
b. The DNA polymerase from T . aquaticus is able to withstand very high temperatures.
c. T . aquaticus can survive high temperatures and low pH.
d. T . aquaticus is found in the frozen lakes of Antarctica.
Correct Answer: ✅ (d) T. aquaticus is found in the frozen lakes of Antarctica.
Explanation
Thermus aquaticus (T. aquaticus) is a thermophilic bacterium known for its ability to survive and thrive at high temperatures. It was first discovered in the hot springs of Yellowstone National Park. The key feature of T. aquaticus is its production of Taq DNA polymerase, which is widely used in molecular biology for the Polymerase Chain Reaction (PCR) due to its thermostability.
🔬 1. Thermus aquaticus and Its Role in PCR
- T. aquaticus produces Taq polymerase, which remains stable and functional at high temperatures (up to 95°C).
- PCR involves repeated heating and cooling cycles, which require a heat-stable enzyme for DNA amplification.
- Most enzymes would denature at high temperatures, but Taq polymerase remains active, making it ideal for PCR.
✅ 2. Why the Other Statements Are True
| Statement | Explanation | True/False |
|---|---|---|
| (a) The DNA polymerase from T. aquaticus is used in molecular biology for a procedure called polymerase chain reaction (PCR). | Taq polymerase is the most commonly used enzyme in PCR because of its heat stability. | ✅ True |
| (b) The DNA polymerase from T. aquaticus is able to withstand very high temperatures. | Taq polymerase remains stable at temperatures up to 95°C. | ✅ True |
| (c) T. aquaticus can survive high temperatures and low pH. | T. aquaticus is a thermophile and acidophile, tolerating extreme conditions. | ✅ True |
| (d) T. aquaticus is found in the frozen lakes of Antarctica. | T. aquaticus thrives in hot springs, not cold environments. | ❌ False |
🌡️ 3. Why Statement (d) is False
- T. aquaticus is a thermophile — it requires high temperatures to grow, usually between 70°C to 80°C.
- It was discovered in the hot springs of Yellowstone National Park (USA), not in cold regions like Antarctica.
- Psychrophiles, not thermophiles, are adapted to survive in frozen environments.
🧬 4. Characteristics of Thermus aquaticus
| Feature | Description |
|---|---|
| Type | Thermophilic bacterium |
| Optimum Growth Temperature | 70°C to 80°C |
| Enzyme | Taq polymerase |
| Survival Conditions | High temperatures, low pH |
| Discovery Location | Yellowstone National Park, USA |
🔎 5. How Taq Polymerase Works in PCR
- Denaturation – DNA strands are separated by heating to 94–98°C.
- Annealing – Primers bind to the target sequence at 50–65°C.
- Extension – Taq polymerase synthesizes a new DNA strand at 72°C.
💡 6. Why Taq Polymerase is Ideal for PCR
✅ Thermostability → Functions at high temperatures.
✅ Fast replication rate → Efficient DNA amplification.
✅ High fidelity → Minimal errors during DNA synthesis.
🚀 7. Applications of Taq Polymerase
✅ 1. Genetic Research
- DNA cloning and sequencing
- Genotyping and mutation analysis
✅ 2. Medical Diagnosis
- Detecting infectious diseases
- Identifying genetic mutations
✅ 3. Forensic Science
- DNA fingerprinting
- Crime scene investigation
✅ 4. Evolutionary Biology
- Studying ancient DNA
- Phylogenetic analysis
Summary
- T. aquaticus is a thermophilic bacterium found in hot springs.
- Its enzyme Taq polymerase is widely used in PCR due to its heat stability.
- It cannot survive in cold environments like Antarctica, making statement (d) false.
- ✅ Correct Answer: (d) T. aquaticus is found in the frozen lakes of Antarctica.
76 Comments
Akshay mahawar
March 17, 2025Done 👍
Mahima Sharma
August 24, 2025Frozen lacks of antartica
Ujjwal
March 17, 2025Okh
Suman bhakar
March 17, 2025💯
Nisha
March 17, 2025Done
Arushi
March 17, 2025👍👍
Parul
March 22, 2025Done sir. Easy
Roopal Sharma
August 24, 2025Taq polymerase find in hotsprings .
Soniya Shekhawat
August 24, 2025Taq Polymerase is be thermos Aquatics which is the thermophilic and acetophilic tolerate in extinct harsh condition and it is a found in a hot spring of Yellowstone National Park USA ,
Tag polymers are widely used in PCR and remains table at temperature 95degree celsius.
Mohd juber Ali
August 24, 2025Option d
Taq polymerase found in Yellowstone National park used in PCR
– High temp 95° low pH
Khushi Pareek
August 24, 2025Found in hot spring it is thermophillic
Sakshi yadav
August 24, 2025Therma Aquatica found in hot springs not in cold area bcz it’s survive at high temp.and also binds with strands at high temp.and low ph
Avni
August 24, 2025Correct Answer: (d) T. aquaticus is found in the frozen lakes of Antarctica because Therma Aquatica is found in hotspring not in frozen lakes
Arushi Saini
August 24, 2025Taq polymerase thrives not hot springs
Mansukh Kapoor
August 24, 2025The correct answer is option 4th
T. aquaticus is found in the frozen lakes of Antarctica statment is false for it
Neha Yadav
August 24, 2025Wrong statement : T.aquaticus is found in the frozen lakes of Antarctica because T.aquaticus is thermophilic as it is thrives in hot spring
Khushi Agarwal
August 24, 2025Option d is false about T.aquaticus
It is found in the frozen lakes of Antarctica.
T. aquaticus thrives in hot springs, not cold environments.
karishma don
August 24, 2025taq polymerase doesnt found in frozen lake of antartica
Anurag Giri
August 24, 2025Thermus aquaticus (T. aquaticus) is a thermophilic bacterium known for its ability to survive and thrive at high temperatures So and d is incorrect
Aafreen Khan
August 24, 2025Ans – T. aquaticus is found in the frozen lakes of Antarctica
Thermus aquaticus is a bacterium known for its ability to survive at high temperatures.
Dharmpal Swami
August 24, 2025Thermus aquatics was obtain in hot springs
So incorrect statement is 4
Aakanksha Sharma
August 24, 2025Option D bcz it found in hot springs
Niti Tanwar
August 24, 2025D is incorrect Answer
Dipti Sharma
August 24, 2025Thermus aquaticus was discovered in the hot springs of Yellowstone National Park
Karishma
August 24, 2025D option is correct answer
Priyanka Choudhary
August 24, 2025T.aquaticus It is found in the frozen lakes of Antarctica,but it’s a hot springs, not cold environments.
HIMANI FAUJDAR
August 24, 2025Ans Taq polymerase is a Thermus aquaticus bacterium live in hot springs and at high temperature so it cannot found in Frozen lakes.
Priya dhakad
August 24, 2025T . aquaticus is not found in the frozen lakes it live in hot springs and at a High temperature.
AKANKSHA RAJPUT
August 24, 2025Done sir. Easy
Santosh Saini
August 24, 2025Thermus aquaticus (taq poly.) can survive high temp. And low pH because thermus aquaticus is thermophile tolerating extreme conditions, so it cannot survive in cold temperatures ex. Antarctica
Sneha Kumawat
August 24, 2025T aquatics high temp vale environment me paya jata h . It is not found in the frozen lakes
Payal Gaur
August 24, 2025T aquaticus is not found in frozan lakes of Antarctica because this is hot spring bacteria
anjani sharma
August 24, 2025T aquacticus are found in hot springs with high temperature
They are not found in frozen lakes where temperature is very low
Heena Mahlawat
August 24, 2025Thermus aquaticus is found in hot springs not frozen lakes
Tanvi Panwar
August 24, 2025Thermus aquaticus bacterias are found in hot springs in high temperatures not in frozen lakes.
MOHIT AKHAND
August 24, 2025Done sir ✅
Ayush Dubey
August 24, 2025T. aquaticus is found in the frozen lakes of Antarctica.
Surbhi Rajawat
August 24, 2025D is the incorrect option because thermus aquaticus is found in hot springs and not in frozen lakes
Neelam Sharma
August 24, 2025T. aquaticus thrives in hot springs, not cold environments.
Bhawna Choudhary
August 24, 2025Option D is incorrect about thermus aquaticus bcz T. aquaticus found in high temp not in cold temperatures nd environment
Aman Choudhary
August 24, 2025T. Aquaticus are found in hot springs not in cold environment
Option D is incorrect statement
Monika jangid
August 24, 2025Option d
Bharti Yadav
August 24, 2025T . aquaticus is found in the frozen lakes of Antarctica is incorrect because T.aquaticus thrive in hot spring.
Varsha Tatla
August 25, 2025T.aquticus survive in hot spring region not at cold reason because it act on very high temperature
Divya rani
August 25, 2025D option is wrong because thermus aquaticus found in hot spring of yellowstone national park.
shruti sharma
August 25, 2025T aquaticus found in frozen lake of antartica
Minal Sethi
August 25, 2025Option D T aquaticus is isolated from hot springs not frozen ring
Bhavana kankhedia
August 26, 2025T. aquaticus is found in the frozen lakes of Antarctica.
Surendra Doodi
August 26, 2025Option D -T. aquaticus is found in the frozen lakes of Antarctica.
Thermus aquaticus bacterias are found in hot springs in high temperatures.
Vanshika Sharma
August 26, 2025Ans is D bc thermus aquaticus is found in hot springs not in cold lake
Manisha
August 26, 2025Taq polymerase found in hot springs not in vold
Shivani
August 26, 2025Thermus aquaticus was discovered in the hot springs of Yellowstone National Park
Rishita
August 26, 2025Opt d is incorrect
Alec
August 26, 2025option d is the correct ans.
Taq polymerase is found in yellowstone national park.
Devika
August 26, 2025Option D is incorrect
Pallavi Ghangas
August 26, 2025Thermus aquaticus Is found inYellowstone National Park
Simran Saini
August 26, 2025Option D.
Thermus aquatics is found in the frozen lakes of antarctic.
Sakshi Kanwar
August 27, 2025Thermus aquaticus survive in high temperature not in low temperature . So the false statement is 4th one
Muskan singodiya
August 28, 2025Option d
Kanica Sunwalka
August 28, 2025T.aquaticus comes from hot spring nd is thermostable
Nilofar Khan
August 28, 2025Option d is incorrect.
d.T . aquaticus is found in the frozen lakes of Antarctica becouse T.aquaticus was discovered in the hot springs of Yellowstone National Park
Kajal
August 28, 2025Option d is correct as thermus aquaticus is found in hot springs not in frozen areas
Deepika Sheoran
August 28, 2025Option D is incorrect.
Because Thermus aquaticus are found in hot springs not in cold environment.
Anisha Beniwal
August 28, 2025Option D
Neeraj Sharma
August 28, 2025Option d is correct
Mitali saini
August 29, 2025Correct Answer: ✅ (d) T. aquaticus is found in the frozen lakes of Antarctica.
Asha Gurzzar
August 30, 2025D is false statement because taq.polymerase is a thermostable enzyme,
Khushi Singh
August 30, 2025Found in hot lake
Sonam Saini
August 30, 2025टी एक्वेटिक अंटार्कटिका की जमी हुई झीलों में में पाया जाता है
Kirti Agarwal
August 31, 2025Opt d
Kajal
August 31, 2025Correct Answer is (d) T. aquaticus is found in the frozen lakes of Antarctica
Aartii sharma
August 31, 2025T.aquaticus is found in the frozen lakes of Antarctica
Meenakshi Choudhary
September 3, 2025Thermus aquaticus is found in the frozen lakes of Antarctica.
So option d is correct answer
Konika Naval
August 31, 2025Done
Konika Naval
August 31, 2025Done👍
Muskan Yadav
September 8, 2025T . aquaticus is found in the frozen lakes of Antarctica.