उत्तरों सहित नर्सिंग प्रवेश परीक्षाओं के लिए जीव विज्ञान वर्कशीट

Which sex chromosomes does a typical human male have?

1. AXY
2. BYY
3. CX only
4. DXX

What do centrioles do in an animal cell?

1. AThey capture light for photosynthesis
2. BThey make lipids for the cell membrane
3. CThey help organise the spindle during cell division
4. DThey store the cell's digestive enzymes until they are needed

In which stage of the cell cycle does a cell spend most of its time?

1. AProphase
2. BInterphase
3. CMetaphase
4. DAnaphase

Which process removes carbon dioxide from the atmosphere?

1. ADecomposition
2. BPhotosynthesis
3. CCellular respiration
4. DBurning fossil fuels

What does Mendel's law of segregation state?

1. AThe two alleles of a gene separate so each gamete gets only one
2. BGenes on different chromosomes are always inherited together
3. CDominant alleles are more common in a population than recessive ones
4. DEach gamete receives both alleles of every gene

Which is the correct way to write the scientific name of the gut bacterium?

1. AEscherichia coli
2. Bcoli Escherichia
3. CEscherichia Coli
4. DEscherichia Coli

In snapdragons, flower colour shows incomplete dominance: RR is red, RW is pink and WW is white. Two pink plants are crossed. What phenotype ratio is expected?

1. AAll pink, like the parents
2. B1 red : 1 white
3. C3 red : 1 white
4. D1 red : 2 pink : 1 white

Which parent's gamete decides the biological sex of a human baby, and why?

1. ABoth equally, because each gives one Y chromosome
2. BThe father's, because a sperm carries either an X or a Y
3. CThe mother's, because an egg carries either an X or a Y
4. DThe mother's, because she gives two X chromosomes