Lembaran kerja Biologi untuk peperiksaan kemasukan kejururawatan dengan jawapan

What is an adaptation?

1. AA disease that weakens a population
2. BAny mutation that damages a gene
3. CAn inherited trait that helps an organism survive in its environment
4. DA change an organism makes during its lifetime that it then passes on

What is true of a recessive allele?

1. AIt is always harmful to the organism
2. BIt is found only on the X chromosome
3. CIts trait shows whenever one copy is present
4. DIts trait shows only when two copies are present

What is a Punnett square used for?

1. AShowing the order of genes on a chromosome
2. BCounting the chromosomes in a cell
3. CMeasuring the size of a cell
4. DPredicting the possible genotypes of offspring

Apakah maksud "diploid"?

1. ASel itu mempunyai dua set kromosom
2. BSel itu mempunyai satu set kromosom
3. CSel itu tidak mempunyai nukleus
4. DSel itu hanya boleh membahagi sekali

Sel darah merah diletakkan dalam larutan yang sangat masin (hipertonik). Apakah yang berlaku?

1. AGaram masuk ke dalam sel dan sel membengkak
2. BAir keluar dari sel dan sel mengecut
3. CTiada apa-apa berubah kerana garam tidak boleh merentas
4. DAir masuk ke dalam sel dan sel pecah

During which division of meiosis do homologous chromosomes separate?

1. AMeiosis II
2. BMeiosis I
3. CNeither, because they separate in mitosis
4. DBoth meiosis I and meiosis II

A restriction enzyme cuts at three sites in a linear piece of DNA. How many fragments are produced?

1. A4
2. B3
3. C2
4. D6

Fleming saw a clear area with no bacteria around a Penicillium mould growing on a bacterial plate. What was the best explanation?

1. AThe bacteria had moved away to find more food
2. BThe mould used up all of the oxygen that the nearby bacteria needed
3. CThe bacteria had turned into mould cells
4. DThe mould released a substance that killed or stopped the bacteria