Goal 10 Vocab
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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| Gene | sequence of DNA that codes for an organism's traits.
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| Chromosome | Supercoiled DNA packaged for mitosis or meiosis.
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| Homologous | A pair of chromosomes in which one chromosome is from the mother and one chromosome is from the father.
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| Sister chromatid | refers to the identical copies formed by the replication of a chromosome.
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| Incomplete dominance | one allele is not completely dominant over another, resulting in a phenotype that is a blending of traits.
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| Codominance | both alleles of a gene are visible in the phenotype of the organism.
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| Multiple alleles | three or more alleles for the same gene.
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| Sex-linked | genes located on the sex chromosomes X or Y(pair #23).
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| Polygenic | the determination of a particular characteristic, e.g. height or skin color, by many genes.
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| Autosomes | all chromosomes excluding the sex chromosomes (pairs #1-22).
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| Meiosis | the reduction division process when haploid (n) gametes are formed.
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| Gamete | a reproductive (sex) cell; egg and sperm.
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| Pedigree | a chart showing a family lineage; used to track a genetic disorder within a family.
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| Karyotype | a picture of chromosomes arranged in their homologous pairs.
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| Mutation | a permanent, heritable change in the nucleotide sequence in a gene or a chromosome.
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| Nondisjunction | sister chromatids fail to separate during meiosis causing abnormal numbers of chromosomes in gametes.
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| Recombination | genes on homologous chromosomes are recombined to produce organisms with new gene combinations
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| Crossing Over | The chromatids break into segments (of matching regions), which are then exchanged with one another.
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| Genotype | genetic makeup of an organism represented by letters (Hh) in a Punnett square.
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| Phenotype | physical characteristics of an organism. Ex: blue eyes
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| Haploid (n) | single copy of chromosome set
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| Diploid (2n) | two copies of the chromosome set
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| Homozygous | identical pairs of alleles for the same trait. Ex: HH or hh
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| Heterozygous | two different alleles for the same trait. Ex: Hh
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To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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