Lembar kerja Biologi untuk ujian masuk keperawatan dengan jawaban

Which definition of a species is most often used for animals?

1. AAny organisms that look alike
2. BAll the animals that eat the same food
3. CA group that can interbreed and have fertile offspring
4. DAll of the different organisms that live together in one area

What is a monomer?

1. AA small unit that joins with others to form a polymer
2. BAn enzyme that breaks down polymers
3. CA very large molecule that is made of many smaller units
4. DA molecule that contains no carbon

What is cell differentiation?

1. AThe process by which cells die on purpose
2. BThe process by which DNA is copied
3. CThe process by which cells become specialised
4. DThe process by which a cell divides into two

Researchers randomly assign patients to receive either a new wound dressing or the standard dressing and compare healing times. What type of study is this?

1. AA case report
2. BA survey
3. CA controlled experiment
4. DAn observational study

A bone marrow transplant can treat some blood cancers. Why does it work?

1. AThe donor marrow contains antibiotics that kill cancer
2. BThe transplant replaces the patient's bones
3. CThe donor red cells divide to make more red cells
4. DThe donor stem cells produce new, healthy blood cells

What is a random sample?

1. AA group chosen by the researcher because they are easy to reach and willing
2. BA group chosen because they are likely to support the hypothesis
3. CA group where everyone in the population has an equal chance of being chosen
4. DA group made only of people who volunteer to take part

Sebuah sel hewan memiliki 20 kromosom. Berapa kromosom pada setiap gametnya setelah meiosis normal?

1. A20
2. B10
3. C5
4. D40

Ignoring crossing over, how many different combinations of chromosomes can one person's gametes have because of independent assortment?

1. A46, one for each chromosome
2. B23², about 529
3. C2²³, about 8 million
4. D2 × 23, which is 46