Biology 189 Arizona College Final Exam | Questions & Answers (100 %Score) Latest
Updated 2024/2025 Comprehensive Questions A+ Graded Answers | With Expert Solutions
Allele - Gene for particular trait (T) (t)
Genotype - Letter combo that makes a trait (TT)(Tt)(tt)
Dominant Allele -
Recessive Allele -
Phenotype - physical characteristics of an organism
Purebred - An organism that always produces offspring with the same form of a trait as the parent.
Hybrid - Offspring of crosses between parents with different traits
Homozygous - An organism that has two identical alleles for a trait (TT) (tt)
Heterozygous - An organism that has two different alleles for a trait (Tt)
Gene - sequence of DNA that codes for a protein and thus determines a trait
Trait - specific characteristic of an individual
Heredity - Passing of traits from parents to offspring
dihybrid cross - A cross between individuals that have different alleles for the same gene
, incomplete dominance - Situation in which one allele is not completely dominant over another allele
Codominance - A condition in which neither of two alleles of a gene is dominant or recessive.
Phenotype ratio - Number of offspring. Particular trait or combo or traits
sex-linked traits - Genes that are carried by either of the sex chromosomes
Genotype ratio - Number of times the genotype trait shows up in offspring after a test cross
Pedigree - A diagram that shows the occurrence of a genetic trait in several generations of a family.
Punnett Square - diagram showing the gene combinations that might result from a genetic cross
genetic disorder - An abnormal condition that a person inherits through genes or chromosomes
Monomer - A simple compound whose molecules can join together to form polymers
Polymer - large compound formed from combinations of many monomers
Basic monomers and polymers of nucleic acids -
semiconservative model of DNA - Each of the two daughter molecules have one old strand, derived from
the parent molecule, and one newly made strand
DNA - A complex molecule containing the genetic information that makes up the chromosomes.
semi-conservative - relating to or denoting replication of a nucleic acid in which one complete strand of
each double helix is directly derived from the parent molecule.
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