Lembaran kerja Biologi untuk peperiksaan kemasukan kejururawatan dengan jawapan

What does transfer RNA (tRNA) do?

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

Berapakah bilangan kromosom dalam sel badan manusia yang biasa?

1. A23
2. B46
3. C92
4. D44

Apakah unit terkecil yang dianggap hidup?

1. ATisu
2. BAtom
3. CSel
4. DMolekul

During childbirth, pressure on the cervix causes oxytocin release, which causes stronger contractions and more pressure. What kind of control is this?

1. ANatural selection
2. BNegative feedback
3. CPositive feedback
4. DHomeostatic balance

Which element is found in all amino acids but not in carbohydrates?

1. AHydrogen
2. BCarbon
3. COxygen
4. DNitrogen

What does Mendel's law of segregation state?

1. AGenes on different chromosomes are always inherited together
2. BThe two alleles of a gene separate so each gamete gets only one
3. CDominant alleles are more common in a population than recessive ones
4. DEach gamete receives both alleles of every gene

Two genes lie very close together on the same chromosome. In a test cross, most offspring look like the parents instead of the expected 1:1:1:1 ratio. Why?

1. AA frameshift mutation happened in both genes
2. BThe genes are on different chromosomes and assort independently
3. CBoth genes show incomplete dominance
4. DThe genes are linked and are rarely separated by crossing over

A survey finds that students who sleep more get higher test scores. Which study would best test whether more sleep causes better scores?

1. AAsk the students with the highest scores how they study
2. BRandomly assign students to different sleep times and compare their scores
3. CCompare the test scores of students at two different schools
4. DSurvey a much larger group of students about their sleep habits