biolagy vocab
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
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| DNA | a molecule that contains information that determines the traits that a living thing needs to survive.
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| chromosomes | in a eukaryotic cell, one of the structures in the nucleus that are made up of DNA, andprotein; in prokaryotic cells, the main ring of DNA
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| cell cycle | the life cycle of a cell
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| innerphase | the period of a cell cycle during activities such as cell growth and protein synthesis occur without visible signs of cell division
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| mitosis | in eukaryotic cells a process of cell division forms two new nuclei each has the same number of chromosomes.
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| cytokinesis | the division of the cytoplasm of a cell
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| homologous chromosomes | chromosomes that have the same sequence of genes, and structur
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| meiosis | a process in cell division during which the number of chromosomes decrease to half the original number by two divisions of the nucleus which results in the production of sex cells
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| asexual reprodection | reproduction that does not involve the union of sex cells
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| sexual reproduction | Reproduction that involves the union of the sex cells
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| fertilization | the union of the male and female gamete to form zygote
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| hereditary | the passing of a genetic
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| gene | one set of instructions for an inherited trait
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| genotype | the entire genetic makeup of an organism
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| phenotype | an organisms apperence
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| dominate | in genetics describes the allele that is fully expresses
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| recessive | describes the allele that will be masked unless the organism is homozygous
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| incomplete dominence | when two alleles are expressed such as the phenotype of a heterozygous individual is an intermediate of the phenotypes of the two homozygous parents
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| codominance | a condition in which two alleles are expressed such that the phenotype of a heterozygous individual is a combination of the phenotypes of the two homozygous parents
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| punnett square | a graph used to predict the results of a genetic cross
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| probability | the likely hood of an event to occur due to current events
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| ratio | the comparison of two numbers
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| pedigree | a diagram that shows the occurrence of a genetic trait in several generations of a family
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