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

Which sugar is found in DNA?

1. AFructose
2. BDeoxyribose
3. CRibose
4. DGlucose

Who first used the word "cells" after looking at thin slices of cork under a microscope?

1. AGregor Mendel
2. BRobert Hooke
3. CLouis Pasteur
4. DCharles Darwin

Каковы строительные блоки (мономеры) белков?

1. AЖирные кислоты
2. BНуклеотиды
3. CМоносахариды
4. DАминокислоты

In which phase of mitosis do the chromosomes condense and the nuclear envelope break down?

1. AProphase
2. BMetaphase
3. CTelophase
4. DAnaphase

What is the role of ribosomal RNA (rRNA)?

1. AIt stores genetic information in the nucleus
2. BIt carries the code from DNA to the ribosome
3. CIt forms part of the ribosome and helps join amino acids
4. DIt brings single amino acids to the ribosome

Когда происходит кроссинговер между гомологичными хромосомами?

1. AВ телофазе II мейоза
2. BВ S-фазе интерфазы
3. CВ анафазе митоза
4. DВ профазе I мейоза

In snapdragons, flower colour shows incomplete dominance: RR is red, RW is pink and WW is white. Two pink plants are crossed. What phenotype ratio is expected?

1. AAll pink, like the parents
2. B1 red : 2 pink : 1 white
3. C1 red : 1 white
4. D3 red : 1 white

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

1. AProduction of ATP in the mitochondria
2. BCopying of DNA in the nucleus
3. CDiffusion of oxygen molecules through the lipid bilayer
4. DMovement of chloride ions through a membrane protein