उत्तरों सहित नर्सिंग प्रवेश परीक्षाओं के लिए जीव विज्ञान वर्कशीट

In biology, what is a clone?

1. AAn organism that carries genes from two different species
2. BA cell with an extra chromosome
3. CA genetically identical copy of an organism, cell or gene
4. DAn offspring of two different parents

What is an organism's genome?

1. AThe traits that can be seen
2. BThe proteins made by one cell
3. CAll of its genetic material
4. DA single gene on one chromosome

What is a chromosomal deletion?

1. AThe loss of a piece of a chromosome
2. BThe swap of a single DNA base
3. CA piece of chromosome that is turned around
4. DAn extra copy of a whole chromosome

How does cytokinesis differ between animal cells and plant cells?

1. AAnimal cells pinch in with a furrow; plant cells build a cell plate
2. BOnly plant cells carry out cytokinesis
3. CAnimal cells build a cell plate; plant cells pinch in with a furrow
4. DOnly animal cells carry out cytokinesis

Researchers randomly assign patients to receive either a new wound dressing or the standard dressing and compare healing times. What type of study is this?

1. AA case report
2. BAn observational study
3. CA controlled experiment
4. DA survey

What happens in the Calvin cycle of photosynthesis?

1. ACO₂ is built into sugar using ATP and NADPH
2. BWater is split to release oxygen
3. CGlucose is broken down to release energy
4. DLight is absorbed by chlorophyll

A drug lowered blood pressure in a study of 20 men aged 40 to 50. Why might the result not apply to women over 70?

1. AThe study had a dependent variable
2. BBlood pressure cannot be measured in older women
3. CThe sample did not represent that group
4. DThe results were too precise to be trusted

A cell is 0.00002 m wide. Which value is equal to this width?

1. A20 µm
2. B0.2 mm
3. C2 µm
4. D200 µm