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7 Sci Heredity
7th Grade Science Heredity Vocabulary
Question | Answer |
---|---|
HEREDITY | THE PASSING OF TRAITS FROM PARENT TO OFFSPRING. |
ALLELES | THE DIFFERENT FORMS A GENE MAY HAVE FOR A TRAIT. |
MEIOSIS | PROCESS BY WHICH SEX CELLS ARE CREATED IN THE REPRODUCTIVE ORGANS, WITH EACH SEX CELL HAVING ONE ALLELE FOR EACH TRAIT. |
GENETICS | STUDY OF HOW TRAITS ARE INHERITED THROUGH THE ACTIONS OF ALLELES. |
DOMINANT | THE TRAIT THAT SHOWS OR APPEARS. SHOWN BY A CAPITAL LETTER. |
RECESSIVE | THE TRAIT THAT IS HIDDEN OR SEEMS TO DISAPPEAR. SHOWN BY A LOWERCASE LETTER. |
PROBABILITY | BRANCH OF MATHEMATICS THAT HELPS YOU PREDICT THE CHANCE THAT SOMETHING WILL HAPPEN. |
PUNNET SQUARE | A HANDY TOOL USED TO PREDICT RESULTS IN MENDELIAN GENETICS. |
GENOTYPE | GENETIC MAKEUP OF AN ORGANISM. |
PHENOTYPE | PHYSICAL EXPRESSION OF A PARTICULAR GENOTYPE. |
HOMOZYGOUS | ORGANISM WITH TWO ALLELES THAT ARE EXACTLY THE SAME. |
HETEROZYGOUS | ORGANISM WITH TWO DIFFERENT ALLELES. |
INCOMPLETE DOMINANCE | PRODUCTION OF A PHENOTYPE THAT IS AN INTERMEDIATE TO THOSE OF THE TWO HOMOZYGOUS PARENTS AND BOTH ALLELES ARE EXPRESSED IN THE OFFSPRING. |
MULTIPLE ALLELES | A TRAIT THAT IS CONTROLLED BY MORE THAN TWO ALLELES. |
POLYGENIC INHERITANCE | WHEN A GROUP OF GENE PAIRS ACT TOGETHER TO PRODUCE A SINGLE TRAIT. |
SEX-LINKED GENE | AN ALLELE INHERITED ON A SEX CHROMOSOME. |
PEDIGREE | A TOOL FOR TRACING THE OCCURRENCE OF A TRAIT IN A FAMILY. |
GENETIC ENGINEERING | CHANGING OF A GENE'S DNA SEQUENCE BY BIOLOGICAL AND CHEMICAL METHODS. |