Research Article
A Cross-National Study of Students’ Understanding of Genetics Concepts: Implications from Similarities and Differences in England and Turkey
Table 4
Incorrect responses of students (more than 10%), which were not considered as alternative conception.
| Incorrect responses | England | Turkey |
| (i) The chromosome number of an organism with the formula of = 30 + XY is . (Item (3)) | 42 | 3 | (ii) If = 30 + XY then the chromosome number of this organism is 32 × 2 = 64. (Item (3)) | 10 | 1 | (iii) Somatic cells have chromosomes. (Item (7)) | 31 | 1 | (iv) A zygote has 23 (22 + X) chromosomes. (Item (9)) | 16 | 1 |
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