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Science test #2

QuestionAnswer
the passing of genetic traits from parent to offspring. Heredity
An allele whose trait always shows up in the organism when the allele is present. dominant allele
An allele whose trait only shows up when no dominant allele is present. recessive allele
one set of instructions for an inherited trait Gene
one of the alternative forms of a gene that governs a characteristic, such as hair color Allele
an organism's appearance or other detectable characteristic Phenotype
genetic makeup. Always letters (Bb, BB) Genotype
the chances of something happening probability
having two of the same genes for the trait (sometimes called purebred). homozygous
having two different genes for a trait (sometimes called hybrid). heterozygous
father of genetics Gregor Mendel
Complex molecules which make up structures and carry out functions of an organism. MADE IN THE RIBOSOMES! Protein
A characteristic that an organism can pass on to its offspring through its genes Trait
Complex molecule that carries genetic information that defines an organism's traits. (found in the nucelus) DNA
A single piece of coiled DNA found in the cells; contains genes that encode traits. YOU HAVE 23 PAIRS OF THESE Chromosomes
the study of how characteristics of living things are controlled by genes Genetics
What are the different forms of a gene called? Allele
Which form of a gene is represented by a lowercase letter? Recessive
a change in the DNA sequence Mutation
Which form of a gene is represented by a capital letter? Dominant
What does purebred mean? An organism with all the same type of gene
what is an allele? a specific form of a gene
Gregor Mendel was a Monk
Gregor Mendel experimented pea plants
A chart used to show or predict the possible gene combination in a cross between two organisms for a given trait Punnett Square
How big did Gregor mendel expect the pea plants to be Medium
The actual size of the pea plant Tall
Gregor Mendel observed pea plants to determine the pair of Genes
Created by: JaydenWall13
 

 



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