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

What does transfer RNA (tRNA) do?

1. AIt brings amino acids to the ribosome
2. BIt carries the code out of the nucleus
3. CIt joins two DNA strands together
4. DIt copies DNA in the nucleus

Which kind of organism causes malaria?

1. AA bacterium carried in water
2. BA virus spread by coughing
3. CA protist carried by mosquitoes
4. DA fungus that grows on skin

What is a model in science?

1. AThe control group of a study
2. BA simplified representation of a real system
3. CA single measurement from an experiment
4. DAn exact copy that has no limitations

Which sequence describes the usual flow of genetic information in a cell?

1. AProtein to RNA to DNA
2. BDNA to RNA to protein
3. CRNA to DNA to protein
4. DDNA to protein to RNA

Чому вчені повторюють експеримент або використовують багато об'єктів?

1. AЩоб не потребувати контрольної групи
2. BЩоб щоразу змінювати незалежну змінну
3. CЩоб зменшити вплив випадковості на результати
4. DЩоб гарантувати, що гіпотезу доведено

A greenhouse is warm and brightly lit, but the air has very little carbon dioxide. What is most likely limiting the rate of photosynthesis?

1. AThe carbon dioxide concentration
2. BThe number of stomata
3. CThe light intensity in the greenhouse
4. DThe temperature

A single-celled microbe has a nucleus and a cell wall made of chitin, and it reproduces by budding. What is it most likely to be?

1. AA virus
2. BAn amoeba
3. CA yeast
4. DA bacterium

A man has Klinefelter syndrome (XXY). Which error most likely produced it?

1. ACrossing over between chromosome 21 and the X chromosome
2. BA frameshift mutation in one of the genes on the father's Y chromosome
3. CNondisjunction of the sex chromosomes during meiosis in a parent
4. DExtra mitosis in the zygote after fertilisation