SLS Bio Genetics AB
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Allele | An alternative form of a gene that is made by a mutation in the same place as the chromosomes.
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| Autosome | A chromosome that is not a sex chromosome.
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| Codominance | The relationship between the dominant allele and the recessive received from your parents.
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| Dihybrid | The offspring of parents differing in two specific pairs of genes.
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| Dominant allele | The gene from one of your parents that is can overpower the other gene if it is different.
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| Genotype | The genetic makeup of an organism.
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| Heterozygous | Having different pairs of genes for any inherited characteristic.
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| Homozygous | Having identical pairs of genes for any inherited characteristic
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| Monohybrid | The offspring of individuals that differ in a certain gene
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| Multiple allele | a series of more than two allele genes
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| Phenotype | The observable constitution of an organism
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| Punnet square | The chart used to determine probability of getting a certain genotype
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| Recessive allele | The allele that can easily be covered up by a dominant allele
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| Sex chromosone | The chromosome that decides the sex of an organism
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| Sex linked trait | Certain traits that are known to be linked to the X and Y chromosomes
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| Test cross | A genetic test for heterozygosity where an organism of dominant phenotype but unknown genotype is crossed to an organism recessive for all
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| Apoptosis | The process of programmed cell death
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| Cell cycle | The series of events as the cell grows and divides
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| Centriole | The thing that makes spindle fibers
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| Centromere | The part on the chromosome where the spindle fibers grab
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| Cromatin | The stuff that the chromosome is made of
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| Chromosome | The things in the nucleas that hold the genetic code for the cell
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| Crossing-over | The exchange of genes in homologous chromosomes
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| Cytokinesis | The cytoplasm separation at the end of mitosis or meiosis
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| Diploid (2n) | A cell containing two complete sets of chromosomes from each parent
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| Chromosome number | The characteristic number of a chromosome found in the cell nuclei
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| Gamete | A mature male or female sex cell
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| Haploid (n) | A cell with a single set of unpaired chromosomes
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| Homologous | Pairing at meiosis and having the same structure and pattern of genes
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| Meiosis | The process of cell division where four haploid daughter cells are created
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| Mitosis | the process of cell division where two daughter cells are made
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| Nondisjunction | When chromosomes don't separate in cell division
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| Somatic cell | Any cell in an organism that is not a sex cell
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| Synapsis | The fusion of chromosome pairs at the beginning of meiosis
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