उत्तरों सहित नर्सिंग प्रवेश परीक्षाओं के लिए जीव विज्ञान वर्कशीट

How many micrometres (µm) are in one millimetre?

1. A1000
2. B10
3. C100
4. D1 000 000

What is a decomposer?

1. AAn organism that makes food from sunlight
2. BAn animal that eats only plants
3. CAn animal that hunts other animals
4. DAn organism that breaks down dead material

What does the polymerase chain reaction (PCR) do?

1. AIt cuts DNA at specific sequences
2. BIt turns RNA into protein
3. CIt makes many copies of a piece of DNA
4. DIt separates proteins by their charge

A tall pea plant could be TT or Tt. Which cross will best reveal its genotype?

1. ACross it with a short (tt) plant
2. BCross it with a TT plant
3. CCross it with another tall plant
4. DLet it grow for a longer time

जीवाणु सामान्यतः प्रजनन कैसे करते हैं?

1. Aबीज बनाकर
2. Bद्विविखंडन द्वारा
3. Cअर्धसूत्री विभाजन द्वारा
4. Dविषाणुओं को मुकुलित करके

Researchers randomly assign patients to receive either a new wound dressing or the standard dressing and compare healing times. What type of study is this?

1. AA survey
2. BA case report
3. CA controlled experiment
4. DAn observational study

Why are organ transplant patients usually given drugs that suppress the immune system?

1. AThe donor organ contains bacteria that must be killed
2. BThe drugs change the donor organ's DNA so that it matches the patient
3. CTheir immune system would recognise the donor cells as foreign
4. DThe drugs help the new organ to grow larger

प्रत्येक एंज़ाइम सामान्यतः केवल एक प्रकार के क्रियाधार पर ही क्यों काम करता है?

1. Aउसके सक्रिय स्थल का आकार केवल उसी क्रियाधार से मेल खाता है
2. Bप्रत्येक एंज़ाइम में उसके क्रियाधार का DNA होता है
3. Cएंज़ाइम केवल केंद्रक के भीतर काम कर सकते हैं
4. Dक्रियाधार स्वयं एंज़ाइम द्वारा बनाए जाते हैं