Биология для вступительных экзаменов на сестринские программы: лист заданий с ответами

What is an organism's genome?

1. AAll of its genetic material
2. BA single gene on one chromosome
3. CThe traits that can be seen
4. DThe proteins made by one cell

Глюкоза — это пример какого вида молекул?

1. AПолисахарида
2. BБелка
3. CЛипида
4. DМоносахарида

In which stage of the cell cycle does a cell spend most of its time?

1. AAnaphase
2. BInterphase
3. CProphase
4. DMetaphase

What do the spindle fibres do during cell division?

1. AThey make the new nuclear envelope
2. BThey digest the old cell membrane
3. CThey attach to chromosomes and move them to the poles
4. DThey copy the DNA of each chromosome before the cell divides

Lactose (milk sugar) is a disaccharide. Which two monosaccharides is it made of?

1. AGlucose and galactose
2. BGlucose and glucose
3. CFructose and galactose
4. DGlucose and fructose

Which DNA bases are purines?

1. ACytosine and thymine
2. BAdenine and guanine
3. CAdenine and thymine
4. DCytosine and guanine

A scientist wants to show that a particular microbe causes a disease. According to Koch's postulates, which step is needed?

1. AThe disease must be treated successfully with antibiotics
2. BThe microbe must be found in healthy hosts just as often as in sick hosts
3. CThe microbe must be seen in the blood under a light microscope
4. DThe microbe grown from a sick host must cause the disease in a healthy host

Paper discs with antibiotics X, Y and Z are placed on a plate covered with bacteria. The clear zones around them are 2 mm, 15 mm and 0 mm wide. What is the best conclusion?

1. AX is most effective, and the bacteria are resistant to Y
2. BAll three are equally effective against these bacteria
3. CZ is most effective, because no bacteria grew under the disc
4. DY is most effective, and the bacteria are resistant to Z