Biology for nursing entrance exams worksheet with answers

Free printable Biology for nursing entrance exams worksheet: 8 problems from easy to exam level, with an answer key. Print it or save it as a PDF.

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1.Easy

What does the polymerase chain reaction (PCR) do?

  1. AIt cuts DNA at specific sequences
  2. BIt turns RNA into protein
  3. CIt separates proteins by their charge
  4. DIt makes many copies of a piece of DNA
2.Easy

What does gel electrophoresis separate?

  1. AChromosomes by their colour
  2. BCells by their shape
  3. CDNA fragments by size
  4. DBlood into plasma and cells
3.Easy

What is a mutagen?

  1. ASomething that can cause changes in DNA
  2. BAn enzyme that copies DNA
  3. CA cell that divides without control
  4. DA protein that repairs damaged DNA
4.Medium

Which DNA bases are purines?

  1. AAdenine and thymine
  2. BAdenine and guanine
  3. CCytosine and thymine
  4. DCytosine and guanine
5.Medium

A seedling is 4 cm tall at week 1, 8 cm at week 2, 12 cm at week 3 and 16 cm at week 4. If the trend continues, how tall will it be at week 6?

  1. A20 cm
  2. B32 cm
  3. C24 cm
  4. D18 cm
6.Medium

What does "diploid" mean?

  1. AThe cell can divide only once
  2. BThe cell has two sets of chromosomes
  3. CThe cell has no nucleus
  4. DThe cell has one set of chromosomes
7.Hard

Starch and cellulose are both made of glucose. Why can humans digest starch but not cellulose?

  1. AStarch is a protein, and cellulose is a lipid
  2. BCellulose contains no glucose units at all, only fructose
  3. CHumans lack an enzyme that breaks the bonds in cellulose
  4. DCellulose dissolves in water but starch does not
8.Hard

Some snakes and whales have tiny remains of hip bones that are not used for walking. What do these structures suggest?

  1. AThe bones are needed for swimming
  2. BTheir ancestors had legs
  3. CThey were caused by a recent mutation
  4. DThey will grow legs in the future

Answer key

  1. 1. D · It makes many copies of a piece of DNA
  2. 2. C · DNA fragments by size
  3. 3. A · Something that can cause changes in DNA
  4. 4. B · Adenine and guanine
  5. 5. C · 24 cm
  6. 6. B · The cell has two sets of chromosomes
  7. 7. C · Humans lack an enzyme that breaks the bonds in cellulose
  8. 8. B · Their ancestors had legs

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