What is a transgenic organism? - AnswersTerm used to refer to an organism that contains
genes from other organisms.
What does it mean for an animal to be homozygous for a particular gene? - AnswersIt has two
copies of the same allele for the same gene.
What is a genetic marker? - AnswersAlleles that produce detectable phenotypic differences,
useful in genetic analysis.
What is a plasmid? - AnswersSmall, circular piece of DNA located in the cytoplasm of many
bacteria.
What is recombinant DNA? - AnswersDNA produced by combining DNA from different sources
What is polymerase chain reaction? - AnswersTechnique used to create many copies of a
particular DNA segment.
What is inbreeding? - AnswersContinued breeding of individuals with similar characteristics to
maintain the derived characteristics of a kind of organism.
What is selective breeding? - AnswersMethod of breeding that allows only those organisms with
desired characteristics to produce the next generation.
What is hybridization? - Answersbreeding technique that involves crossing different individuals
to bring together the best traits of both organisms.
What is the term for an egg cell from which the nucleus has been removed? -
Answersenucleated egg
What is the function of messenger RNA (mRNA) in building proteins? - AnswersIt is part of the
first portion of protein synthesis, transcription.
What four nucleotides make up the code for genes within the DNA molecule? - AnswersThymine,
Adenine, Guanine, and Cytosine
What factor causes phenotypic differences in clones? - Answersepigenetics
What is gene therapy? - AnswersProcess of changing a gene to treat a medical disease or
disorder by replacing an absent or faulty gene with a normal working gene
What is a DNA microarray? - AnswersA glass slide or silicon chip to which spots of single-
stranded DNA have been tightly attached. Used to measure the expression of thousands of
genes.
What is DNA fingerprinting? - AnswersTool used by biologists that analyzes an individual's