Cevaplı Hemşirelik giriş sınavları için biyoloji çalışma kâğıdı

In science, what is an observation?

1. AA rule that explains all known facts
2. BA conclusion drawn before any data are collected
3. CA guess about why something happens
4. DInformation gathered with the senses or instruments

In the scientific name Homo sapiens, what does Homo name?

1. AThe kingdom
2. BThe species
3. CThe genus
4. DThe family

What do bacteria use flagella for?

1. AMaking proteins from amino acids
2. BCopying their DNA
3. CStoring food
4. DMoving from place to place

Why does each type of virus infect only certain kinds of cells?

1. AIt can only enter cells that are dividing by meiosis at that time
2. BIt must attach to specific receptor proteins on the cell surface
3. CIt must find cells with the same DNA as its own
4. DIt can only enter cells that have no nucleus

In gel electrophoresis, why does DNA move towards the positive electrode?

1. ADNA has a negative charge from its phosphate groups
2. BDNA is pulled by gravity through the gel
3. CDNA has no charge and moves at random
4. DDNA has a positive charge from the nitrogen bases it contains

In which phase of mitosis do the chromosomes condense and the nuclear envelope break down?

1. ATelophase
2. BProphase
3. CAnaphase
4. DMetaphase

Fertiliser washes from farmland into a lake. Algae grow rapidly, then die, and later many fish die. What is the main cause of the fish deaths?

1. AThe algae release carbon dioxide that poisons fish
2. BThe fertiliser is directly poisonous to fish
3. CBacteria decomposing the dead algae use up the oxygen
4. DThe fish eat too many algae and become ill

Why can standard DNA profiling not tell identical twins apart?

1. AIdentical twins have no non-coding DNA
2. BIdentical twins come from one zygote and have the same DNA
3. COnly one twin inherits the father's DNA
4. DTwins always share the same fingerprints on their hands