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Ch. 5 7th Grade

Genetics

QuestionAnswer
dominant trait genetic factor that blocks another genetic factor
egg haploid sex cell formed in the female reproductive organ
genetics study of how traits are passed from parents to offspring
heredity passing of traits from parents to offspring
hybrid offspring of two plants or animals with different forms of the same trait
recessive trait genetic factor that is blocked by the presence of a dominant factor
sperm haploid sex cell formed in the male reproductive organs
allele different form of a gene
codominance occurs when both alleles can be observed in the offspring’s phenotype
conclude to reach a logically necessary end by reasoning
gene section on a chromosome that has genetic information for one trait
genotype two alleles that control the phenotype of a trait
heterozygous having two different alleles of a gene
homozygous having the same two alleles of a gene
incomplete dominance occurs when the offspring’s phenotype is a blend of the parents’ phenotypes
phenotype how a trait appears or is expressed
polygenic inheritance occurs when multiple genes determine the phenotype of a trait
Punnett square model used to predict possible genotypes and phenotypes of offspring
DNA organism’s genetic material
mutation change in the nucleotide sequence of a gene
nucleotide molecule made of a nitrogen base, a sugar, and a phosphate group that forms the basic structural unit of DNA
replication process of copying a DNA molecule to make another DNA molecule
RNA ribonucleic acid that carries the code for making proteins
transcription process of making mRNA from DNA
translation process of making a protein from RNA
Created by: SSmith01
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