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

What does DNA replication produce?

1. AFour different DNA molecules
2. BOne mRNA molecule
3. CA new protein
4. DTwo identical DNA molecules

What is the correct order of levels of organisation, from smallest to largest?

1. ACell, tissue, organ, organ system, organism
2. BTissue, cell, organ, organism, organ system
3. COrgan, tissue, cell, organ system, organism
4. DCell, organ, tissue, organism, organ system

What is a decomposer?

1. AAn animal that eats only plants
2. BAn organism that makes food from sunlight
3. CAn organism that breaks down dead material
4. DAn animal that hunts other animals

What is a bacterial endospore?

1. AA hair-like structure used to swim towards food
2. BA tough, dormant form that survives heat, drying and many disinfectants
3. CA reproductive cell that bacteria use to make new colonies quickly
4. DA small ring of DNA that carries antibiotic resistance genes

What does the enzyme lipase break down?

1. AStarch into sugars
2. BProteins into amino acids and peptides
3. CFats into fatty acids and glycerol
4. DDNA into nucleotides

Trình tự nào bổ sung với mạch DNA A-T-G-C-C-A?

1. AU-A-C-G-G-U
2. BT-A-C-G-G-T
3. CG-C-A-T-T-G
4. DA-T-G-C-C-A

How does the CRISPR-Cas9 gene-editing system find the right place to cut DNA?

1. AThe Cas9 protein cuts DNA at random sites
2. BIt binds only to the start codon of every gene
3. CA guide RNA pairs with the matching DNA sequence
4. DIt reads the amino acid sequence of the protein

Why are organ transplant patients usually given drugs that suppress the immune system?

1. AThe drugs help the new organ to grow larger
2. BThe donor organ contains bacteria that must be killed
3. CThe drugs change the donor organ's DNA so that it matches the patient
4. DTheir immune system would recognise the donor cells as foreign