Free Biotechnology MCQs with Answers

• A. Replacing
• B. Slicing of DNA
• C. Replication
• D. To search the genetic library

Explanation: DNA polymerase is the enzyme responsible for replicating DNA - for using a template strand to construct a complimentary sequence of…

• A. Sanger's method
• B. To diagnose viral infection
• C. Maxam and Gilbert method
• D. RFLPs

Explanation: Restriction fragment length polymorphism (abbreviated RFLP) refers to differences (or variations) among people in their DNA sequences at…

• A. As evidence for paternity
• B. RFLPs
• C. Maxam and Gilbert method
• D. To diagnose viral infection

Explanation: DNA finger prints shows comparison of child's inger print with that of his parents. The child has received DNA from both of his parents.

• A. RFLPs
• B. To diagnose viral infection
• C. Maxam - Gilbert method
• D. Sanger's method

Explanation: PCR-based strategies have propelled huge scientific endeavors such as the Human Genome Project.

• A. Bacteria that reproduce in large vats
• B. Viruses
• C. Smallest chromosome
• D. A restriction enzyme cuts DNA

Explanation: When the DNA sequence of human chromosome no. 22, one of the smallest human chromosomes.

• A. Smallest chromosome
• B. Bacteria that reproduce in large vats
• C. A restriction enzyme cuts DNA
• D. Viruses

Explanation: A restriction enzyme is a protein isolated from bacteria that cleaves DNA sequences at sequence-specific sites, producing DNA fragments…

• A. Viruses
• B. Smallest chromosome
• C. A restriction enzyme cuts DNA
• D. Determines the order of base pairs

Explanation: DNA sequence is now completely automated, robotic devices mix the reagents and then load, run and read the order of the nucleotide bases…

• A. Promote health of plants
• B. Used to make holes in the plasma membrane
• C. An organic chemical used to make aspartame
• D. Used to stimulate the sperms to divide

Explanation: Transgenic bacteria have been produced to promote health of plants for example, bacteria that normally live on plants and encourage the…

• A. Promote health of plants
• B. Used to stimulate the sperms to divide
• C. An organic chemical used to make aspartame
• D. Used to make holes in the plasma membrane

Explanation: Biochemists discovered a strain of bacteria that is specially good at producing phenylalanine; an organic chemical needed to make…

• A. Promote health of plants
• B. Used to make holes in the plasma membrane
• C. An organic chemical used to make aspartame
• D. Used to stimulate the sperms to divide

Explanation: The electric current makes tiny, selfscaling holes in the plasma membrane through which genetic material can enter.

• A. Used to stimulate the eggs to dive
• B. Promotes health of plants
• C. An organic chemical used to make aspartame
• D. Used to make holes in the plasma membrane

Explanation: A specially prepared chemical bath was used to stimulate the eggs to divide and begin development. Now that scientists

• A. Kills the cancer cells
• B. High level of blood cholesterol
• C. Is also done in cancer patients
• D. A condition in which liver cells lack receptor for removing cholesterol

Explanation: Hypercholesterolemia a condition that develops when liver cells lack a receptor for removing cholesterol from the blood.

• A. Kills the cancer cells
• B. A condition in which liver cells lack receptor for removing cholesterol
• C. High level of blood cholesterol
• D. Is also done in cancer patients

Explanation: The high levels of blood cholesterol make the patient subject to fatal heart attacks at a young age.

• A. Kills the cancer cells
• B. High level of blood cholesterol
• C. A condition in which liver cells lack receptor for removing cholesterol
• D. Is also done in cancer patients

Explanation: Once the bone marrow stem cells were protected it was possible to increase the level of chemotherapy to kill the cancer cells.

• A. Kills the cancer cells
• B. High level of blood cholesterol
• C. Is also done in cancer patients
• D. A condition in which liver cells lack receptor for removing cholesterol

Explanation: Once the bone marrow stem cells were protected it was possible to increase the level of chemotherapy to kill the cancer cells.

• A. Develop into mature plants
• B. Cytokinin
• C. Mature flower
• D. To cure hemophilia

Explanation: Perhaps it will be possible to used in vivo therapy to cure hemophilia, diabetes. Parkinson disease, or AIDS.

• A. Mature flower
• B. Cytokinin
• C. Develop into mature plants
• D. To cure hemophilia

Explanation: Coconut milk contains the plant hormone cytokinin)

• A. Mature flower
• B. Make the plants less productive
• C. Develop into mature plants
• D. Cytokinin

Explanation: The presence of plant viruses weakens plants and makes them less productive

• A. Cytokinin
• B. Make the plants less productive
• C. Develop into mature plants
• D. Mature flower

Explanation: A mature plant develops from each somatic embryo

• A. Quinine
• B. Direct way to produce plants
• C. Produce proembryos
• D. Releasing haploid embryos

Explanation: The haploid tube cells with in the pollen grains divide, producing proembryos consisting of as many as 20 to 40 cells.