Genes and DNA Quiz
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What is the shape of the DNA molecule?
A. Double helix
B. Square
C. Single strand
D. Triangle
What is a dominant gene?
A. A dominant gene is a gene that is only expressed in males.
B. A dominant gene is a gene that skips generations.
C. A dominant gene is a gene that is always recessive.
D. A dominant gene is a gene that is always expressed, overriding the presence of a recessive gene.
What are the different patterns of inheritance?
A. Autosomal dominant, autosomal recessive, X-linked dominant, X-linked recessive, and mitochondrial inheritance.
B. Y-linked dominant, Y-linked recessive, and Z-linked inheritance
C. Mitochondrial dominant, mitochondrial recessive, and mitochondrial co-dominant inheritance
D. Autosomal co-dominant, autosomal incomplete dominant, and X-linked incomplete dominant inheritance
What are the four nitrogenous bases found in DNA?
A. Adenine (A), Thymine (T), Guanine (G), Cytosine (C)
B. Adenine (A), Thymine (T), Uracil (U), Cytosine (C)
C. Adenine (A), Uracil (U), Guanine (G), Cytosine (C)
D. Uracil (U), Thymine (T), Guanine (G), Cytosine (C)
Explain the role of enzymes in DNA replication.
A. Enzymes are involved in transcribing RNA during DNA replication
B. Enzymes help in unwinding the DNA double helix, synthesizing new DNA strands, and proofreading for accuracy during DNA replication.
C. Enzymes are responsible for maintaining the DNA structure
D. Enzymes are not essential for DNA replication
What is a recessive gene?
A. A recessive gene is passed down from both parents
B. A recessive gene is only expressed when an individual has one copy of it
C. A recessive gene is a gene that is only expressed when an individual has two copies of it, one from each parent.
D. A recessive gene is always dominant in an individual
What is the basic building block of DNA?
A. Nucleotide
B. Cell
C. Protein
D. Chromosome
Explain the process of DNA replication.
A. DNA replication involves the synthesis of proteins.
B. DNA replication is the process by which a DNA molecule is copied to produce two identical DNA molecules.
C. DNA replication is the process of creating RNA molecules.
D. DNA replication results in the production of non-identical DNA molecules.
How do environmental factors influence gene expression?
A. Environmental factors can influence gene expression by affecting transcription factors, DNA methylation, chromatin structure, and RNA processing.
B. Environmental factors only influence gene expression in non-human organisms
C. Gene expression is solely determined by genetics
D. Environmental factors have no impact on gene expression
How can genetic engineering be used in agriculture?
A. By modifying the plant’s DNA to introduce specific genes that confer desirable traits.
B. By using chemical fertilizers
C. By implementing traditional farming methods
D. By increasing water usage
What is a codon?
A. A codon is a type of fish.
B. A codon is a type of computer code.
C. A codon is a unit of measurement.
D. A codon is a sequence of three nucleotides.
Name a type of genetic mutation and explain how it can affect an organism.
A. Deletion mutation
B. Frame mutation
C. Insertion mutation
D. Point mutation
What are the ethical considerations surrounding genetic engineering?
A. Safety is not a concern in genetic engineering
B. Ethical considerations include issues related to consent, equity, safety, and potential misuse of technology.
C. Genetic engineering has no potential for misuse
D. Ethical considerations are not important in genetic engineering
What is a Punnett square used for?
A. Predicting genotypes and phenotypes of offspring in a genetic cross
B. A tool for cooking recipes
C. A method for solving algebraic equations
D. Used for predicting weather patterns
What is gene expression?
A. Gene expression is the process by which information from a gene is used in the synthesis of a functional gene product, such as proteins or RNA molecules.
B. Gene expression is the process of DNA replication
C. Gene expression is the process of photosynthesis
D. Gene expression is the process of cell division
What is the significance of the Human Genome Project?
A. It discovered a new species of bacteria
B. It aimed to explore the depths of the ocean
C. It focused on studying plant genetics
D. It provided a comprehensive understanding of human genetic makeup and its implications for various fields of study.
Explain the difference between genotype and phenotype.
A. Genotype is only relevant for plants, while phenotype is only relevant for animals.
B. Genotype is the physical characteristics, while phenotype is the genetic makeup.
C. Genotype is the genetic makeup, while phenotype is the physical characteristics.
D. Genotype and phenotype are interchangeable terms.
What is genetic engineering?
A. Genetic engineering is the process of manipulating an organism’s genetic material.
B. Genetic engineering is the process of altering an organism’s physical appearance
C. Genetic engineering is the process of changing an organism’s behavior
D. Genetic engineering is the process of creating new species
What is a genetic mutation?
A. A genetic mutation is a physical change in the appearance of an organism
B. A genetic mutation is a temporary alteration in the DNA sequence
C. A genetic mutation is a reversible change in the DNA sequence
D. A genetic mutation is a permanent alteration in the DNA sequence that makes up a gene.
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