Question2 Paper 3

Problem Statement:

What is the percentage of vitamin C content in papaya, orange and water melon?

Hypothesis:

Orange has the highest percentage of vitamin C content.

Variables:...............

Happy revising :)

Define Operationally

It must be done BASED ON EXPERIMENT GIVEN.

How to define operationally

How to go about answering question : Define operationally.

1. Do respond to the question..

2. Observe the proper way to write it by looking at the following examples.

Bida and Wardah : I hope it will be clearer :)

Sample Answer Paper 3 Qs2

Hello students..

Please go through the corrections that I have made~ with the latest format, there are a few changes to be observed !

Ady : Please look at the ways to write procedure.

Sample Question

Answer:

· DNA fingerprinting is a technique used to identify parents of a child based on DNA banding similarity

· Generally, the DNA profile of a child is the combination of the mother and father.

· A child inherit half of the chromosomes number from father and half from mother.

· DNA fingerprinting gives more details and information regarding the identity of a person while thumbprints give general information as it is based on a few different types.

· A blood sample, seminal fluid or any tissue can be analysed and its result is compared with thatof an individual who is a suspect.

* In conclusion, man P is the father of the child as the similarity of his DNA is higher

Sample Qs

1. (a) Explain the principle involved in genetic engineering [2 marks]

· Genetic engineering is a technique of manipulating the genes in an organism by removing a gene from one organism and transferring it to another organism

(b) Discuss the importance of genetic engineering in the medical and agricultural field. [4 marks]

The importance of genetic engineering in the medical field.

· Production of insulin from bacteria.

· Gene from the pancreas that can produce insulin is removed and inserted into the DNA molecule of bacteria.

· The bacteria that can produce insulin grows very fast in a suitable nutrient medium.

· Insulin can be produced in large quantities in a short time.

Genetic engineering in agriculture.

· Produce food or plants which are genetically modified to produce high quality yield.

· Produce plants with high quality yield as they are resistant to viral attacks, pesticides or predators.

Quadrat Sampling

Quadrat Sampling Technique.

4 Gastisia girls were at the school field to investigate the distribution of plants using the quadrat sampling technique ...
It was noon.....and its a bright sunny day.
They used a prepared metal frame quadrat..


They were counting the coverage of the species..





And later calculating it...

Sample Question

I like this question :)TQ

Sample Question

Its haemophilia......

Credit to Perfect Score Panels :)

Paper 3 Technique Latest

Starting 2010, The format of answering for Paper3 QUESTION 2 has changed slightly. It is not announced widely which I dont think it is wise..Below is the marks allocated for your answers. You have to observe and follow closely the requirement of the question...meaning that ..you have to read the question CAREFULLY...

Make sure you answer according to the bullets provided..

PAPER 3 , QUESTION 2, SPM 2010

PAPER 3, QUESTION 2, SPM 2009