1. Which of the following is an example of continuous variation?Antara yang berikut, yang manakah contoh bagi variasi selanjar?

Which of the following represent continuous variation?Antara yang berikut, yang manakah mewakili variasi selanjar?

Which of the following variations is caused by genetic factor only?

Antara variasi berikut, yang manakah disebabkan oleh factor genetic sahaja?

1. Which characteristic represents continuous variation?

Ciri manakah mewakili variasi selanjar?

1. Diagram 1 shows a type of chromosomal mutation.Rajah 1 menunjukkan sejenis mutasi kromosom.What type of mutation is this?Apakah jenis mutasi ini?

1. A girl has a sickle-cell anemia disease. What cause this disease?Seorang budak perempuan menghidap penyakit anemia sel sabit. Apakah yang menyebabkan penyakit ini?

1. Diagram shows a schematic diagram of a genetic disease.Rajah menunjukkan rajah skema perwarisan bagi satu penyakit genetik.What is the characteristic of child S?Apakah ciri bagi kanak-kanak S?

1. What is the number of chromosomes in an individual with Turner’s Syndrome?

Apakah bilangan kromosom bagi individu yang mempunyai Sindrom Turner?

1. Diagram 4 shows the light and dark Biston moths on the tree bark.Rajah 4 menunjukkan kupu-kupu Biston cerah dan kuku-kupu Biston gelap di atas kulit kayu.

What is the advantage of the variation to its survive?Apakah kepentingan variasi itu kepada kemandiriannya?