उत्तरों सहित नर्सिंग प्रवेश परीक्षाओं के लिए जीव विज्ञान वर्कशीट

Who first worked out the basic rules of inheritance by breeding pea plants?

1. ARobert Hooke
2. BLouis Pasteur
3. CCharles Darwin
4. DGregor Mendel

What are homologous chromosomes?

1. AA matching pair, one from each parent, that carry the same genes
2. BTwo chromosomes that are always the X and the Y
3. CTwo identical copies of one chromosome made when DNA is replicated
4. DChromosomes that are found only in gametes

Which codon signals the start of translation in most genes?

1. AUAG
2. BAUG
3. CUGA
4. DUAA

वैज्ञानिक प्रयोग को दोहराते या अनेक प्रतिदर्शों का उपयोग क्यों करते हैं?

1. Aपरिणामों पर संयोग का प्रभाव घटाने के लिए
2. Bनियंत्रण समूह की ज़रूरत से बचने के लिए
3. Cयह सुनिश्चित करने के लिए कि परिकल्पना सत्य सिद्ध हो जाए
4. Dहर बार स्वतंत्र चर बदलने के लिए

In a food chain, producers hold 10 000 units of energy. Roughly how much is passed on to the primary consumers?

1. AAbout 1000 units
2. BAbout 5000 units
3. CAbout 10 000 units
4. DAbout 10 units

A study finds a positive correlation between hours of exercise and lung capacity. What does this mean?

1. AExercise has been proven to cause higher lung capacity
2. BAs exercise increases, lung capacity tends to increase
3. CAs exercise increases, lung capacity tends to decrease
4. DThere is no link between the two variables

Two populations of one species live on separate islands for many thousands of years. When brought together, they can no longer interbreed. What has happened?

1. AArtificial selection by humans
2. BHybrid vigour from crossbreeding
3. CHomeostasis in both populations
4. DSpeciation after geographic isolation

Finches on the Galápagos Islands have different beak shapes on islands with different foods. What is the best explanation?

1. AThe beaks changed because the birds chose to eat new food
2. BEach bird changed its beak by using it more
3. CThe birds were all created with the same beak and it never changed
4. DNatural selection favoured beaks suited to each food source