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