一、名词解释与名词比对

1.核定位信号(nuclear localization signal, NLS)

2.X染色体失活(X chromosome inactivation)

3.动粒(kinetochore)/端粒(telomere)

4.核型(karyotype)

5.核纤层(nuclear lamina)

6.核孔复合体(nuclear pore complex)

7.染色质(chromatin)/染色体(chromosome)

8.组蛋白(histone)/非组蛋白(nonhistone)

9.核小体(nucleosome)

10.常染色质(euchromatin)/异染色质(heterochromatin)

11.结构异染色质(constitutive heterochromatin)/兼性异染色质(facultative heterochromatin)

12.核仁组织区(nucleolar organizing region, NOR)

13.多线染色体(polytene chromosome)/灯刷染色体(lampbrush chromosome)

  1. 端粒(telomere)/端粒酶(telomerase)

二、选择题

  1. operons ()

A. consist of multiple transcription units

B. are a cluster of genes that are transcribed into a single mRNA

C. are common in eukaryotes