10 Questions
Which term refers to an inherited factor encoded in the DNA that helps determine a characteristic?
Gene
What is the term for one of two or more alternative forms of a gene?
Allele
What is the term for a specific place on a chromosome occupied by an allele?
Locus
What is the term for the set of alleles possessed by an individual organism?
Genotype
What is the term for the appearance or manifestation of a characteristic?
Phenotype
Which term refers to an individual organism possessing two different alleles at a locus?
Heterozygote
What is the term for an attribute or feature possessed by an organism?
Characteristic
What is the term for an individual organism possessing two of the same alleles at a locus?
Homozygote
What is the term for any of the 22 non-sex chromosomes?
Autosome
What are the chromosomes responsible for sex determination called?
Sex chromosomes
Study Notes
Genetic Terms
- A gene is an inherited factor encoded in the DNA that helps determine a characteristic.
- An allele is one of two or more alternative forms of a gene.
- A locus is a specific place on a chromosome occupied by an allele.
- A genotype is the set of alleles possessed by an individual organism.
- A phenotype is the appearance or manifestation of a characteristic.
- A heterozygote is an individual organism possessing two different alleles at a locus.
- A trait is an attribute or feature possessed by an organism.
- A homozygote is an individual organism possessing two of the same alleles at a locus.
- An autosome is any of the 22 non-sex chromosomes.
- Sex chromosomes are the chromosomes responsible for sex determination.
Test your knowledge on genetic terms such as gene, allele, locus, genotype, phenotype, and heterozygote in this informative quiz!
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