CIE iGCSE Co-Ordinated Science B16.1 Chromosomes and genes Exam Style Questions Paper 1
Question
Which statement is correct?
A An allele is a version of a gene.
B DNA is only found in gametes.
C A gene is a length of DNA that codes for fats.
D Cells of human males contain two X chromosomes.
▶️Answer/Explanation
Ans :A
Question
Which diagram correctly shows sex inheritance in humans?
▶️Answer/Explanation
Ans: C
Question
Which sex chromosomes are found in a healthy male human?
(A) XO
(B) XX
(C) XY
(D) YY
▶️Answer/Explanation
Ans : C
Question
The diagram shows eggs and sperm containing sex chromosomes.
Which row gives the correct combination of sex chromosomes for a male and female offspring?
▶️Answer/Explanation
Ans : B