Lembar kerja Biologi untuk ujian masuk keperawatan dengan jawaban

What is a heterotroph?

1. AAn organism that lives only in water
2. BAn organism with no cells
3. CAn organism that makes its own food by photosynthesis
4. DAn organism that gets its food from other organisms

Which codon signals the start of translation in most genes?

1. AUAA
2. BUGA
3. CUAG
4. DAUG

What does homozygous mean?

1. AHaving two identical alleles for a gene
2. BHaving an extra chromosome
3. CHaving only one copy of a gene
4. DHaving two different alleles for a gene

Human adult height varies across a smooth, continuous range rather than falling into a few separate groups. What is the best explanation?

1. AIt is controlled by many genes and also affected by environment
2. BIt is an X-linked recessive trait
3. CIt is controlled only by the environment
4. DIt is controlled by one gene with two alleles and full dominance

Seorang siswa menguji bagaimana jumlah cahaya memengaruhi pertumbuhan tanaman kacang. Manakah yang harus menjadi variabel kontrol?

1. ATinggi tanaman pada akhir percobaan
2. BKesimpulan percobaan
3. CJumlah air yang diterima setiap tanaman
4. DJumlah cahaya yang diterima setiap tanaman

When most people in a community are vaccinated, people who cannot be vaccinated are also protected. Why?

1. AVaccinated people make antibodies for others
2. BThe pathogen has too few hosts to spread easily
3. CThe pathogen mutates into a harmless form
4. DThe vaccine spreads from person to person

An old idea says giraffes got long necks because each one stretched to reach leaves and passed the longer neck to its young. Why is this idea rejected?

1. AOnly plants can pass on traits to offspring
2. BChanges acquired in a lifetime are not passed on in the genes
3. CGiraffes do not eat leaves from tall trees, so stretching is not needed
4. DNeck length is not affected by any genes

Sebuah protein panjangnya 150 asam amino. Tanpa menghitung kodon stop, berapa basa mRNA yang mengkodenya?

1. A150
2. B50
3. C300
4. D450