उत्तरों सहित नर्सिंग प्रवेश परीक्षाओं के लिए जीव विज्ञान वर्कशीट

What is a heterotroph?

1. AAn organism that makes its own food by photosynthesis
2. BAn organism that lives only in water
3. CAn organism with no cells
4. DAn organism that gets its food from other organisms

What do bacteria use flagella for?

1. AMoving from place to place
2. BCopying their DNA
3. CStoring food
4. DMaking proteins from amino acids

यूकैरियोटिक कोशिका का अधिकांश DNA कहाँ पाया जाता है?

1. Aकेंद्रक में
2. Bलाइसोसोम में
3. Cकोशिका भित्ति में
4. Dकोशिका झिल्ली में

What is meant by independent assortment in meiosis?

1. ADNA is copied separately in each chromosome
2. BHomologous pairs line up randomly, so gametes get different mixes of chromosomes
3. CAll chromosomes from the mother go into the same gamete
4. DSister chromatids stay joined until the end of meiosis, so all gametes are identical

A bone marrow transplant can treat some blood cancers. Why does it work?

1. AThe donor stem cells produce new, healthy blood cells
2. BThe donor marrow contains antibiotics that kill cancer
3. CThe donor red cells divide to make more red cells
4. DThe transplant replaces the patient's bones

किसी प्रयोग के परिणाम परिकल्पना के पूर्वानुमानों से मेल खाते हैं। सबसे अच्छा निष्कर्ष क्या है?

1. Aपरिकल्पना सभी मामलों के लिए सत्य सिद्ध हो गई है
2. Bआगे किसी प्रयोग की कभी ज़रूरत नहीं
3. Cपरिकल्पना समर्थित है, पर सिद्ध नहीं
4. Dपरिकल्पना अब प्रकृति का नियम बन गई है

A karyotype shows 45 chromosomes, with a single X chromosome and no Y. Which condition is this?

1. ADown syndrome
2. BKlinefelter syndrome
3. CTurner syndrome
4. DA typical male karyotype

A pre-mRNA is 3000 bases long, and 1200 bases of introns are removed. If all remaining bases code for amino acids, what is the largest number of amino acids in the protein?

1. A400
2. B1000
3. C600
4. D1800