DP Biology (last assessment 2024)
Question 18M.2.HL.TZ1.4b
| Date | May 2018 | Marks available | [Maximum mark: 2] | Reference code | 18M.2.HL.TZ1.4b |
| Level | HL | Paper | 2 | Time zone | TZ1 |
| Command term | List | Question number | b | Adapted from | N/A |
b.
[Maximum mark: 2]
18M.2.HL.TZ1.4b
(b)
DNA codes for the amino acid sequence of polypeptides. List two other functions of DNA.
[2]
Markscheme
a. promotion/repression/regulation of gene expression
b. introns (have functions in regulation of gene expression)
c. telomeres (form caps at the end of chromosomes)
d. coding for tRNAs/rRNAs
e. allows genes/traits/heritable characteristics to be passed to offspring
