ورقة عمل الأحياء لامتحانات القبول في التمريض مع الإجابات

What does the polymerase chain reaction (PCR) do?

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

What is an organism's genotype?

1. AThe alleles it carries for a trait
2. BThe traits that can be seen or measured
3. CThe number of cells in its body
4. DThe environment in which it lives

Which type of microscope is needed to see a virus?

1. AA dissecting microscope
2. BA light microscope
3. CA magnifying glass
4. DAn electron microscope

أين تحدث الترجمة؟

1. Aداخل النواة
2. Bفي الجدار الخلوي
3. Cفي الجسيمات الحالّة
4. Dعند الريبوسومات

A woman with blood type O has a child with a man of type AB. Which blood types can their children have?

1. AO or AB
2. BA or B
3. CO only
4. DA, B, AB or O

A patient's heart rate is measured four times: 70, 72, 74 and 80 beats per minute. What is the mean?

1. A73 beats per minute
2. B74 beats per minute
3. C80 beats per minute
4. D72 beats per minute

Cystic fibrosis is caused by a faulty CFTR protein, which forms a chloride channel in the cell membrane. Which process is directly affected?

1. ADiffusion of oxygen molecules through the lipid bilayer
2. BProduction of ATP in the mitochondria
3. CCopying of DNA in the nucleus
4. DMovement of chloride ions through a membrane protein

A diploid cell contains 10 units of DNA in G1. How many units are in each cell at the end of meiosis II?

1. A20 units
2. B10 units
3. C5 units
4. D2,5 units