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

What does it mean that a cell membrane is selectively permeable?

1. AIt lets no substance cross at all
2. BIt lets every substance cross freely in both directions
3. CIt lets some substances cross but not others
4. DIt lets only water molecules cross

What is the aim of gene therapy?

1. ATo give a patient antibiotics through a vein to kill a virus
2. BTo remove all the genes from a patient's cells
3. CTo treat a disease by adding a working copy of a faulty gene
4. DTo change the patient's blood type

Which carbohydrate forms plant cell walls and acts as dietary fibre?

1. AGlucose
2. BLactose
3. CGlycogen
4. DCellulose

Which statement about Archaea is correct?

1. AThey are prokaryotes, and many live in extreme environments
2. BThey are multicellular plants
3. CThey are a type of virus
4. DThey are eukaryotes that have a nucleus and membrane-bound organelles

Результаты эксперимента совпадают с предсказаниями гипотезы. Какой вывод лучший?

1. AГипотеза подтверждена, но не доказана
2. BГипотеза доказана для всех случаев
3. CГипотеза теперь стала законом природы
4. DДальнейшие эксперименты больше никогда не нужны

What does Mendel's law of segregation state?

1. AThe two alleles of a gene separate so each gamete gets only one
2. BEach gamete receives both alleles of every gene
3. CGenes on different chromosomes are always inherited together
4. DDominant alleles are more common in a population than recessive ones

A cell is 0,00002 m wide. Which value is equal to this width?

1. A2 µm
2. B200 µm
3. C0,2 mm
4. D20 µm

Which evidence supports the theory that mitochondria came from bacteria that lived inside an ancient cell?

1. AThey are found in all prokaryotic cells
2. BThey have their own circular DNA, ribosomes and a double membrane
3. CThey make the proteins used by the whole cell, including the nucleus
4. DThey have a cell wall made of peptidoglycan