16 Questions
What is an allele?
An alternate version of a gene
What are amino acids?
The building blocks of proteins
What does autosomal refer to?
Non-sex chromosomes
What is the blood-brain barrier?
A selective barrier of endothelial cells
What is a carrier in genetics?
An organism possessing one copy of a recessive allele
What do carriers not express?
The phenotype of the recessive allele
What is chimerism?
When an organism or tissue contains at least two different complete diploid sets of DNA that originated from more than one zygote
What is a chromosome?
A physical structure that stores the genetic information, composed of long strands of RNA coiled around proteins
What is co-dominance?
Both alleles at a locus are expressed equally in an organism
What is a codon?
A sequence of three consecutive nucleotides in DNA or RNA that specifies the synthesis of a single amino acid or acts as a start or stop signal during translation
What is complete penetrance?
Traits with complete penetrance will be expressed in all individuals possessing the causal allele
What is a compound heterozygote?
An individual with two different mutant alleles at the same genetic locus (one on each chromosome)
What is a deletion mutation?
A mutation where part of the DNA sequence is lost
What are de novo variants?
Genetic variations that arise in a reproductive cell or the fertilized egg so that they are present in an individual animal but absent from both parents’ DNA
What causes dilution mutations in coat color?
A variant of a pigmentation gene that lightens the coat color of an animal
What does compound heterozygote refer to?
An individual with two different mutant alleles at the same genetic locus (one on each chromosome)
Test your knowledge of genetics vocabulary with this glossary quiz. Learn about alleles, amino acids, autosomal traits, and more!
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