Lembar kerja Biologi untuk ujian masuk keperawatan dengan jawaban

What is the main role of the cytoskeleton?

1. AIt stores the genetic code of the cell
2. BIt controls which substances enter the cell
3. CIt joins amino acids into proteins
4. DIt gives the cell its shape and helps it move

How many micrometres (µm) are in one millimetre?

1. A10
2. B1000
3. C1 000 000
4. D100

Who first worked out the basic rules of inheritance by breeding pea plants?

1. ARobert Hooke
2. BGregor Mendel
3. CLouis Pasteur
4. DCharles Darwin

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

1. ARNA to DNA to protein
2. BDNA to protein to RNA
3. CDNA to RNA to protein
4. DProtein to RNA to DNA

What do the spindle fibres do during cell division?

1. AThey make the new nuclear envelope
2. BThey digest the old cell membrane
3. CThey copy the DNA of each chromosome before the cell divides
4. DThey attach to chromosomes and move them to the poles

A deletion removes exactly three bases, forming one whole codon, from the middle of a gene. What is the most likely result?

1. AEvery amino acid after the deletion is changed to a new one
2. BThe protein lacks one amino acid but the rest is unchanged
3. CThe protein becomes three times longer
4. DNo protein can be made at all

A breastfed baby receives antibodies from its mother's milk. Why does this protection last only a short time?

1. AThe baby did not make these antibodies and forms no memory cells
2. BThe antibodies from breast milk attack the baby's own red blood cells
3. CThe baby's stomach makes the antibodies more active
4. DThe antibodies turn into memory cells after a few weeks

Satu basa tambahan disisipkan di dekat awal sebuah gen. Mengapa hal ini biasanya berdampak besar pada protein?

1. AHanya mengubah satu asam amino dalam protein
2. BMenggeser kerangka baca semua kodon berikutnya
3. CTidak berdampak karena kodenya redundan
4. DMengubah gen itu menjadi kromosom yang berbeda