उत्तरों सहित नर्सिंग प्रवेश परीक्षाओं के लिए जीव विज्ञान वर्कशीट

यूकैरियोटिक कोशिका का अधिकांश DNA कहाँ पाया जाता है?

1. Aकोशिका झिल्ली में
2. Bकेंद्रक में
3. Cकोशिका भित्ति में
4. Dलाइसोसोम में

कोशिका का आकार बताने के लिए सबसे अधिक कौन-सी इकाई इस्तेमाल होती है?

1. Aमीटर (m)
2. Bकिलोमीटर (km)
3. Cलीटर (L)
4. Dमाइक्रोमीटर

Which codon signals the start of translation in most genes?

1. AUGA
2. BUAG
3. CAUG
4. DUAA

Why do red blood cells have a flattened, biconcave disc shape?

1. AIt gives a large surface area for gas exchange
2. BIt makes them stick to vessel walls
3. CIt helps them divide faster
4. DIt lets them hold a larger nucleus and more DNA

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

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

Why does ice float on liquid water?

1. AIce contains more air than liquid water
2. BIce molecules are lighter than liquid water molecules
3. CIce is denser than liquid water
4. DHydrogen bonds hold ice in an open, less dense structure

The number of bacteria in a sample rises from 200 to 500. What is the percentage increase?

1. A250%
2. B60%
3. C300%
4. D150%

The coding part of an mRNA is 900 bases long, including the start codon and the stop codon. How many amino acids are in the protein?

1. A300
2. B299
3. C900
4. D298