Робочий аркуш «Біологія для вступних іспитів на медсестринство» з відповідями

В якому органоїді відбувається фотосинтез?

1. AВ апараті Гольджі
2. BВ ядрі
3. CУ хлоропласті
4. DУ мітохондрії

Which enzyme unwinds the DNA double helix and separates the two strands for copying?

1. AAmylase
2. BLipase
3. CLigase
4. DHelicase

What is the job of messenger RNA (mRNA)?

1. AIt stores genetic information in the nucleus permanently
2. BIt carries amino acids to the ribosomes
3. CIt carries the genetic code from DNA to the ribosomes
4. DIt forms the main structure of the ribosome

In evolution, what does an organism's fitness mean?

1. AHow strong and fast the organism is compared with others
2. BHow long the organism lives
3. CHow large the organism grows
4. DHow many offspring it leaves that survive and reproduce

Скільки хромосом містить нормальна яйцеклітина людини?

1. A22
2. B92
3. C23
4. D46

Why is a buffer system important in blood?

1. AIt raises the blood glucose level
2. BIt carries oxygen to the tissues
3. CIt resists changes in pH
4. DIt makes the blood clot faster

How does the CRISPR-Cas9 gene-editing system find the right place to cut DNA?

1. AIt reads the amino acid sequence of the protein
2. BThe Cas9 protein cuts DNA at random sites
3. CA guide RNA pairs with the matching DNA sequence
4. DIt binds only to the start codon of every gene

Plasmids with an ampicillin-resistance gene are mixed with bacteria, which are then spread on a plate containing ampicillin. Why do only a few colonies grow?

1. AAmpicillin makes some bacteria take up the plasmid
2. BAll the bacteria die, and the colonies are fungi
3. COnly the bacteria that took up the plasmid can survive
4. DThe plasmid kills the bacteria that do not grow