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Chapter 12-pg.306

Meiosis,Genetics, and Mendel

QuestionAnswer
allele VARIATION OF GENE
crossing over EXCHANGE OF GENETIC MATERIAL BY NON-HOMOLOGOUS CHROMOSOMES DURING PROPHASE I
dihybrid cross FERTILIZATION BETWEEN TWO ORGANIZATIONS TO STUDY TWO DIFFERENT TRAITS.
diploid A CELL WITH TWO COPIES OF EACH TYPE OF CHROMOSOME.
dominant THE OBSERVABLE TRAIT OR THE ONE THAT MASKS THE RECESSIVE.
egg FEMALE GAMETE OR SEX CELL
fertilization FUSION OF MALE AND FEMALE GAMETES.
gamete MALE OR FEMALE SEX CELL
genetic recombination MAJOR SOURCE OF VARIATION IN INDIVIDUALS COMING FROM CROSSING OVER.
genetics STUDY OF HEREDITY
genotype ORGANISM’S GENETIC COMBINATION
haploid CELL OF AN ORGANISM THAT HAS HALF THE NUMBER OF CHROMOSOMES
heredity PASSING ON CHARACTERISTICS FROM PARENTS TO OFFSPING.
heterozygous HAVING NON-IDENTICAL ALLELES FOR A PARTICULAR TRAIT.
homologous PAIRED IDENTICAL CHROMOSOMES
homozygous IDENTICAL ALLELES FOR A PARTICULAR TRAIT
Law of Independent Assortment DIFFERENT TRAITS ARE INHERITED INDEPENDENTLY
Law of Segregation SEPARATION OF ALLELES DURING FERTILIZATION
meiosis CELL DIVISION IN WHICH ONE DIPLOID (2N) CELL PRODUCES 4 HAPLOID CELLS(N) WHICH ARE NOT IDENTICAL TO THE ORIGINAL CELL
phenotype OUTWARD APPEARANCE OF AN ORGANISM
pollination FERTILIZATION BETWEEN MALE AND FEMALE FLOWERS
recessive THE ALLELE THAT IS MASKED BY THE DOMINANT TRAIT
sexual reproduction THE CROSSING OF THE MALE AND FEMALE GAMETES
sperm THE MALE GAMETE
trait A CHARACTERISTIC
zygote THE PRODUCT OR OFFSPRING FROM A FERTILIZATION.
Created by: jensenc
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