उत्तरों सहित नर्सिंग प्रवेश परीक्षाओं के लिए जीव विज्ञान वर्कशीट

What does homozygous mean?

1. AHaving two identical alleles for a gene
2. BHaving an extra chromosome
3. CHaving only one copy of a gene
4. DHaving two different alleles for a gene

What is the SI base unit of mass?

1. APound
2. BLitre
3. CGram
4. DKilogram

What are the parts of a triglyceride (a fat molecule)?

1. AOne glycerol and three fatty acids
2. BOne amino acid and three fatty acids
3. CThree glucose units and one phosphate
4. DTwo glycerols and one fatty acid

A woman with blood type O has a child with a man of type AB. Which blood types can their children have?

1. AA or B
2. BO only
3. CO or AB
4. DA, B, AB or O

दो विषमयुग्मजी जनकों (Aa × Aa) का संकरण कराया जाता है। अपेक्षित जीनोटाइप अनुपात क्या है?

1. A1 AA : 1 aa
2. B2 AA : 1 Aa : 1 aa
3. C1 AA : 2 Aa : 1 aa
4. D3 AA : 1 aa

Why do many plants close their stomata on hot, dry days?

1. ATo release more oxygen
2. BTo reduce water loss
3. CTo take in more carbon dioxide
4. DTo speed up photosynthesis

A patient with type A blood is given type B red blood cells by mistake. What is the cause of the reaction that follows?

1. AAnti-A antibodies on the donor cells attack the patient's plasma
2. BThe patient's A antigens dissolve the donor's haemoglobin
3. CThe donor's B antigens destroy the patient's white blood cells
4. DAnti-B antibodies in the patient's plasma attack the donor cells

एक जीवाणु हर 20 मिनट में विभाजित होता है। यदि कोई नहीं मरता, तो 2 घंटे बाद कितने जीवाणु होंगे?

1. A32
2. B128
3. C64
4. D12