Phiếu bài tập Sinh học cho kỳ thi đầu vào điều dưỡng có đáp án

What is a scientific law?

1. AA statement of what always happens under certain conditions
2. BA rule that scientists vote to accept
3. CAn explanation that has been proven wrong
4. DA guess about the cause of something that has not yet been tested

What does the polymerase chain reaction (PCR) do?

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

Which elements make up carbohydrates?

1. ACarbon, nitrogen and sulfur
2. BHydrogen, oxygen and phosphorus
3. CCarbon, hydrogen and nitrogen
4. DCarbon, hydrogen and oxygen

How does cytokinesis differ between animal cells and plant cells?

1. AAnimal cells build a cell plate; plant cells pinch in with a furrow
2. BAnimal cells pinch in with a furrow; plant cells build a cell plate
3. COnly plant cells carry out cytokinesis
4. DOnly animal cells carry out cytokinesis

What is the difference between an antiseptic and a disinfectant?

1. AAntiseptics are used on living tissue; disinfectants are used on objects
2. BAntiseptics are antibiotics; disinfectants are vaccines
3. CAntiseptics are used on objects and floors; disinfectants are used on skin
4. DAntiseptics kill all spores; disinfectants kill none

Which sequence describes the usual flow of genetic information in a cell?

1. ADNA to RNA to protein
2. BProtein to RNA to DNA
3. CDNA to protein to RNA
4. DRNA to DNA to protein

Which statement correctly compares DNA replication and transcription?

1. ABoth use thymine and deoxyribose in the new strand
2. BReplication makes RNA from DNA; transcription makes DNA from RNA
3. CBoth take place on ribosomes in the cytoplasm
4. DReplication copies all the DNA; transcription copies one gene

Two parents who both have a genetic condition have a child who does not. Assuming a single gene, what inheritance pattern does this show?

1. AAutosomal recessive, with both parents homozygous
2. BAutosomal recessive, with both parents heterozygous
3. CX-linked recessive, with the father as a carrier
4. DAutosomal dominant, with both parents heterozygous