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

Каковы строительные блоки (мономеры) белков?

1. AЖирные кислоты
2. BМоносахариды
3. CАминокислоты
4. DНуклеотиды

In genetics, what is a carrier?

1. AA person with two recessive alleles who has the disorder
2. BA person who has a dominant disorder
3. CA person with one recessive allele for a disorder but no symptoms
4. DA person who has lost both alleles for the gene, so shows no trait

What do bacteria use flagella for?

1. AMaking proteins from amino acids
2. BCopying their DNA
3. CStoring food
4. DMoving from place to place

Which polymer is correctly matched with its monomer?

1. AStarch and glucose
2. BGlycogen and fatty acid
3. CDNA and amino acid
4. DProtein and nucleotide

Why do plants wilt when the soil around their roots becomes very salty?

1. AThe roots take in too much water
2. BWater leaves the root cells by osmosis
3. CSalt makes the root cells swell and burst
4. DSalt blocks sunlight from reaching the leaves

Когда в клеточном цикле происходит копирование ДНК?

1. AВ S-фазе интерфазы
2. BТолько во время мейоза II
3. CВо время цитокинеза
4. DВо время метафазы митоза

Some chemotherapy drugs stop spindle fibres from forming. Why do they often cause hair loss and damage to the gut lining?

1. AThese cells have no mitochondria
2. BThese tissues are made only of haploid cells
3. CThese tissues also contain rapidly dividing cells
4. DThese cells divide by meiosis instead of mitosis

Five recovery times in days are 5, 6, 6, 7 and 30. Which value best describes a typical recovery time, and why?

1. AThe maximum of 30, because it shows the worst case
2. BThe mean of 10,8, because it uses every value
3. CThe median of 6, because the outlier pulls the mean up
4. DThe range of 25, because it shows the spread