Biology for nursing entrance exams worksheet with answers

What is cell differentiation?

1. AThe process by which cells become specialised
2. BThe process by which a cell divides into two
3. CThe process by which DNA is copied
4. DThe process by which cells die on purpose

What are the three domains of life?

1. ABacteria, Archaea and Eukarya
2. BProkaryotes, plants and animals
3. CBacteria, viruses and protists
4. DPlants, animals and fungi

What is an antigen?

1. AA molecule that the immune system sees as foreign
2. BA white blood cell that engulfs and digests bacteria
3. CA protein that carries oxygen
4. DA drug that kills viruses

A student tests how the amount of light affects the growth of bean plants. Which should be a controlled variable?

1. AThe amount of light each plant receives
2. BThe height of the plants at the end
3. CThe amount of water each plant receives
4. DThe conclusion of the experiment

A plant with genotype Aa is crossed with an aa plant. What fraction of the offspring is expected to show the recessive trait?

1. A1/2
2. B1/4
3. CNone of them
4. D3/4

What is a chromosomal translocation?

1. AA piece of one chromosome attaches to a non-matching chromosome
2. BA piece of a chromosome is flipped around in place
3. CA piece of a chromosome is copied twice and stays in the same place
4. DOne DNA base is replaced by another base

A child's DNA profile has bands A, B, C and D. The mother has bands A and C. Man 1 has bands B and D, man 2 has A and E, and man 3 has C and F. Which man could be the biological father?

1. ANone of them
2. BMan 2
3. CMan 3
4. DMan 1

In the Hershey–Chase experiment, viruses were labelled with radioactive phosphorus in their DNA or radioactive sulfur in their protein. Only the phosphorus entered the infected bacteria. What did this show?

1. AProtein, not DNA, is the genetic material of the virus
2. BBacteria take up any radioactive substance
3. CDNA, not protein, is the genetic material of the virus
4. DViruses contain no DNA at all