Werkblad Biologie voor toelatingsexamens verpleegkunde met antwoorden

What are the bacteria called that normally live on the skin and in the gut without causing disease?

1. APrions
2. BVectors
3. CNormal flora
4. DPathogens

What is cell differentiation?

1. AThe process by which a cell divides into two
2. BThe process by which DNA is copied
3. CThe process by which cells die on purpose
4. DThe process by which cells become specialised

What is peer review?

1. AAsking patients for their opinion of a treatment
2. BExperts checking a study before it is published
3. CRepeating your own experiment many times
4. DReading a textbook to learn a topic

Why does PCR use a DNA polymerase taken from bacteria that live in hot springs?

1. AIt copies RNA as well as DNA
2. BIt makes the DNA strands stick together
3. CIt survives the high temperatures used to separate the strands
4. DIt works only in the dark, like the bacteria it comes from

Welke structuur komt in zowel prokaryote als eukaryote cellen voor?

1. AMitochondriën
2. BEen celkern
3. CHet endoplasmatisch reticulum
4. DRibosomen

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

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

Plasmids with an ampicillin-resistance gene are mixed with bacteria, which are then spread on a plate containing ampicillin. Why do only a few colonies grow?

1. AAmpicillin makes some bacteria take up the plasmid
2. BThe plasmid kills the bacteria that do not grow
3. COnly the bacteria that took up the plasmid can survive
4. DAll the bacteria die, and the colonies are fungi

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

1. AIt reads the amino acid sequence of the protein
2. BA guide RNA pairs with the matching DNA sequence
3. CIt binds only to the start codon of every gene
4. DThe Cas9 protein cuts DNA at random sites