GENERAL SCIENCE CLASS 8 MCQS

The information in the DNA is stored in the form of code having ____ organic bases:

1. 3
2. 2
3. 4
4. 5

Which of the following is not the organic bases of DNA:

1. Adenine
2. Cytosine
3. Thymine
4. Uracil

The process of making copies of DNA is called:

1. Transcription
2. Replication
3. Mutation
4. Translation

The ___is made up of a double helix of two complementary strands:

1. RNA
2. Chromosome
3. DNA
4. Protein

In the bacterial cell, the DNA is found floating in the:

1. Mitochondria
2. Nucleus
3. Cell Wall
4. Cytoplasm

Small pieces of DNA are called:

1. Plasmids
2. Replica
3. Template
4. Clone

Which is used in genetic engineering because of its ability to multiply in shortest span of time:

1. Virus
2. Bacteria
3. Algae
4. Fungi

Which vitamin whose gene is inserted in the rice plant creating a genetically modify rice variety:

1. Vitamin C
2. Vitamin D
3. Vitamin E
4. Vitamin A

In which organism, the human insulin is inserted for the commercial preparation of insulin:

1. Algae
2. Fungi
3. Bacteria
4. Virus

Which of the following substances contain disease producing pathogens in the weakened form:

1. Vaccines
2. Antibiotics
3. Antibodies
4. Plasmids