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GRADE 9-PISA TEST SAMPLE QUESTION
Quiz by Jeneley Amasol
Tag the questions with any skills you have. Your dashboard will track each student's mastery of each skill.
​This newspaper article refers to the substance DNA. What is DNA?
A protein found in the blood that helps carry oxygen to all the tissues.
A chemical substance that contains the instructions to build our bodies.
A hormone in blood that helps regulate glucose levels in the body cells.
A chemical substance in cell membranes that stops the cell contents leaking out.
This newspaper article refers to the substance DNA. What is DNA?
The newspaper article says that, except for identical twins, there is only a 1 in 100 million chance that two people will have the same DNA profile. Three students each gave an explanation of why there is such a variety of DNA. Gina said that a person's DNA is made up at conception. It is not inherited. Anna said that DNA can be altered by mutations to produce many different forms. Tom said that each person gets a new mix of DNA as half comes from each parent. Which one or more of the students gave a correct explanation?