1.Easy
Which of these hormones is a steroid?
- AGrowth hormone
- BTestosterone
- CGlucagon
- DInsulin
2.Easy
Which of these is a fungus?
- AInfluenza virus
- BEscherichia coli
- CAmoeba
- DYeast
3.Easy
What do bacteria use flagella for?
- AStoring food
- BCopying their DNA
- CMoving from place to place
- DMaking proteins from amino acids
4.Medium
When does crossing over between homologous chromosomes happen?
- AIn telophase II of meiosis
- BIn prophase I of meiosis
- CIn anaphase of mitosis
- DIn the S phase of interphase
5.Medium
A patient's blood type is B positive. What does this mean?
- ATheir red cells carry the A antigen and no RhD antigen
- BTheir red cells carry the B antigen and the RhD antigen
- CTheir plasma contains anti-B antibodies
- DTheir red cells carry no antigens at all
6.Medium
A red blood cell is placed in pure water. What is most likely to happen?
- AIt shrinks and wrinkles
- BIt swells and may burst
- CIt divides into two cells
- DIt stays the same size
7.Hard
Under the microscope, homologous chromosomes are moving to opposite poles, and each is still made of two chromatids. Which stage is this?
- AAnaphase II of meiosis
- BProphase of mitosis
- CAnaphase I of meiosis
- DAnaphase of mitosis
8.Hard
Where is the main chromosome of a bacterium found, and what extra DNA may it carry?
- AIn the nucleoid, with small plasmids
- BIn the nucleus, with mitochondrial DNA
- CIn the ribosomes, with extra chromosomes
- DIn the cell wall, with RNA genes
Answer key
- 1. B · Testosterone
- 2. D · Yeast
- 3. C · Moving from place to place
- 4. B · In prophase I of meiosis
- 5. B · Their red cells carry the B antigen and the RhD antigen
- 6. B · It swells and may burst
- 7. C · Anaphase I of meiosis
- 8. A · In the nucleoid, with small plasmids
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