15 Questions
Which term refers to the passing on of characteristics from one generation to the next by genes?
Heredity
What is a gene?
A length of DNA on a chromosome that codes for a protein
What is gene expression?
The process by which the information from a gene is used to produce a feature or a protein
What is the locus of a gene?
The specific position on a chromosome where a gene is located
What are alleles?
Different options of a gene, either dominant or recessive
What is the structure of a chromosome?
An organized length of DNA and proteins called histones
Who discovered the molecular structure of DNA?
James Watson and Francis Crick
Which of the following is true about DNA replication?
DNA replication requires ATP and DNA polymerase
Which of the following is a difference between RNA and DNA?
RNA has the base thymine while DNA has uracil
What is the function of messenger RNA (mRNA)?
Carries information from the DNA to the ribosomes
What is the purpose of DNA profiling?
To produce a unique pattern of bands from DNA
What is the role of gel electrophoresis in DNA profiling?
To separate DNA fragments based on their size
What is genetic screening used for?
To check for the presence or absence of a particular allele or gene
What is the purpose of adding a radioactive or fluorescent marker to a DNA sample in genetic screening?
To label a particular allele or gene
What are the four bases found in DNA?
Adenine, Thymine, Guanine, Cytosine
Test your knowledge on fundamental genetics concepts such as genes, gene expression, loci of genes, alleles, and chromosome structure. Learn about the passing on of characteristics from one generation to the next.
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