Genetics and Biotechnology Quiz
Preview:
How can CRISPR technology be used in genetic research?
A. To amplify DNA strands for study
B. To precisely edit or modify specific genes in an organism
C. To create hybrid organisms
D. To measure protein levels in cells
What is the shape of a DNA molecule?
A. Linear chain
B. Double helix
C. Spiral staircase
D. Circular ring
Who is known as the father of genetics?
A. Charles Darwin
B. Gregor Mendel
C. James Watson
D. Francis Crick
What is biotechnology?
A. The study of ecosystems
B. The use of living organisms or their components for human purposes
C. The study of evolution
D. The classification of plants
Which molecules store genetic information?
A. RNA
B. DNA
C. Protein
D. Lipid
What would happen if a mutation occurred in a gene responsible for protein synthesis?
A. The organism would stop functioning entirely.
B. A defective or different protein might be produced.
C. DNA would stop replicating.
D. The mutation would have no effect.
What does a dominant allele do?
A. It masks the effect of a recessive allele.
B. It prevents cell division.
C. It creates new genes.
D. It stops DNA replication.
What is genetic engineering?
A. Crossing plants to create hybrids
B. Manipulating an organism’s DNA to introduce new traits
C. Studying fossils
D. Observing cell division under a microscope
What is the basic unit of heredity?
A. DNA
B. Gene
C. Chromosome
D. Protein
Why do farmers use genetically modified (GM) crops?
A. To eliminate the need for water
B. To increase crop yield and resistance to pests
C. To decrease the growth time of weeds
D. To reduce the plant’s genetic diversity
Which type of organism is commonly used in genetic modification?
A. Mammals
B. Bacteria
C. Plants
D. Fish
Why is DNA fingerprinting considered a reliable method for identification?
A. Each person has a unique DNA sequence.
B. DNA can change over time.
C. All humans share identical DNA.
D. DNA analysis is immune to errors.
What is the role of restriction enzymes in genetic engineering?
A. They amplify DNA.
B. They cut DNA at specific sequences.
C. They replicate entire chromosomes.
D. They create new proteins.
What is a genome?
A. A specific gene that determines height
B. The complete set of an organism’s DNA
C. A single strand of RNA
D. A protein molecule
How could gene therapy be used to treat genetic disorders?
A. By removing all damaged cells
B. By inserting a healthy copy of a gene into the patient’s cells
C. By altering the patient’s RNA to prevent replication
D. By cloning the patient’s genes
