उत्तरों सहित नर्सिंग प्रवेश परीक्षाओं के लिए जीव विज्ञान वर्कशीट

Which pigment absorbs light energy for photosynthesis?

1. AMelanin
2. BKeratin
3. CHaemoglobin
4. DChlorophyll

DNA में ऐडेनिन हमेशा किस क्षारक के साथ युग्म बनाता है?

1. Aग्वानिन
2. Bथाइमिन
3. Cयूरेसिल
4. Dसाइटोसिन

किसी प्रयोग में आश्रित चर क्या होता है?

1. Aवह कारक जिसे प्रभाव देखने के लिए मापा जाता है
2. Bकोई भी कारक जिसे स्थिर रखा जाता है
3. Cवह कारक जिसे शोधकर्ता जान-बूझकर बदलता है
4. Dपरीक्षण की जा रही परिकल्पना

Drugs against fungal infections often cause more side effects than drugs against bacteria. Why?

1. AFungi reproduce only by binary fission
2. BFungal cells are eukaryotic, like human cells
3. CFungi are much smaller than bacteria
4. DFungi have no cell membrane for drugs to act on

When most people in a community are vaccinated, people who cannot be vaccinated are also protected. Why?

1. AThe pathogen mutates into a harmless form
2. BThe pathogen has too few hosts to spread easily
3. CVaccinated people make antibodies for others
4. DThe vaccine spreads from person to person

लाल फूलों वाले पौधे का संकरण सफ़ेद फूलों वाले पौधे से कराया जाता है और सभी संतानों के फूल गुलाबी होते हैं। यह क्या दर्शाता है?

1. Aपूर्ण प्रभाविता
2. Bअपूर्ण प्रभाविता (इनकम्प्लीट डोमिनेंस)
3. Cसह-प्रभाविता (कोडोमिनेंस)
4. Dलिंग-सहलग्न लक्षण

Griffith injected mice with heat-killed harmful bacteria mixed with live harmless bacteria. The mice died, and live harmful bacteria were found in them. What did this show?

1. AThe mice were killed by the dead bacteria alone
2. BBacteria can be killed by the immune system of mice
3. CHeat makes harmless bacteria become harmful when they are injected
4. DA substance from the dead bacteria changed the harmless ones

How does the CRISPR-Cas9 gene-editing system find the right place to cut DNA?

1. AIt binds only to the start codon of every gene
2. BIt reads the amino acid sequence of the protein
3. CThe Cas9 protein cuts DNA at random sites
4. DA guide RNA pairs with the matching DNA sequence