Lembar kerja Biologi untuk ujian masuk keperawatan dengan jawaban

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

1. AHelicase
2. BLigase
3. CLipase
4. DAmylase

What is the aim of gene therapy?

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

Di organel mana fotosintesis berlangsung?

1. ABadan Golgi
2. BNukleus
3. CMitokondria
4. DKloroplas

Red-green colour blindness is X-linked recessive. A colour-blind woman (XᵇXᵇ) has children with a man with normal colour vision (XᴮY). What fraction of their sons is expected to be colour-blind?

1. AOne half
2. BAll
3. COne quarter
4. DNone

What is the job of the checkpoints in the cell cycle?

1. ATo join the two daughter cells back together
2. BTo stop the cycle if the DNA is damaged or the cell is not ready
3. CTo copy the DNA a second time before mitosis
4. DTo speed up division whenever the cell is short of nutrients or space

Apa itu mutasi?

1. APemasangan kromosom homolog
2. BPenyalinan DNA yang normal sebelum pembelahan
3. CPerubahan urutan basa DNA
4. DPerubahan jumlah sel dalam suatu jaringan

PCR starts with one double-stranded DNA molecule, and the number of copies doubles each cycle. How many copies are there after 10 cycles?

1. A512
2. B1024
3. C20
4. D100

A nurse notices that patients who used a new mouthwash had few mouth infections. No other patients were studied. What is most needed before concluding that the mouthwash works?

1. AA longer explanation in the report
2. BA larger bottle of the same mouthwash for each patient
3. CA survey asking patients if they liked it
4. DA comparable group that does not use the mouthwash