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science 3 dna
Terms in this set (25)
pure substance that consists entirely of one type of atom
a thing that is composed of two or more separate elements; a mixture.
building blocks of proteins
A three dimensional polymer made of monomers of amino acids.
A type of protein that speeds up a chemical reaction in a living thing
DNA and RNA
deoxyribonucleic acid, contains the code to make proteins, located in the nucleus
Shape of DNA, twisted ladder
Molecules that contain nitrogen and other elements, these make up the rungs of DNA
threadlike structures made of DNA molecules that contain the genes, condensed DNA
Chromosomes that have the same sequence of genes and the same structure
A display of the chromosome pairs of a cell arranged by size and shape.
the process of making a copy of DNA
A change in a gene or chromosome.
a mutation in which one or more nucleotides are added to a gene
A single nucleotide is replaced by a different nucleotide
a mutation in which one or more pairs of nucleotides are removed from a gene
a sequence of three nucleotides that together determine an amino acid
An abnormal condition that a person inherits through genes or chromosomes
Chromosomes that determine the sex of an individual
gene located on a sex chromosome
Heterozygous individuals in which a disease causing allele remains hidden
A diagram that shows the occurrence of a genetic trait in several generations of a family.
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