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| A change in the nucleotide sequence of DNA. |
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| Having two copies of every chromosome. |
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| A pair of chromosomes that both contain the same genes, In a diploid cell, one chromosome in the pair is inherited from the mother, the other from the father. |
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| The visible or measurable feature of an individual. |
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Definition
| The particular genetic makeup of an individual. |
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Definition
| Specialized reproductive cells that carry one copy of each chromosome (that is, they are haploid) Sperm are male gametes; eggs are female gametes. |
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Definition
| Having only one copy of every chromosome. |
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Definition
| A specialized type of nuclear division that generates genetically unique haploid gametes. |
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| A cell that is capable of developing into an adult organism. The zygote is formed when an egg is fertilized by a sperm. |
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| An early stage of development reached when a zygote undergoes cell division to form a multicellular structure. |
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| An event in meiosis during which maternal and paternal chromosomes pair and physically exchange DNA segments. |
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Definition
| The principle that alleles of different genes are distributed independently of one another during meiosis |
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Definition
| An allele that reveals itself in the phenotype only if a masking dominant allele is not present. |
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Definition
| An allele that can mask the presence of a recessive allele. |
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Definition
| Having two different alleles. |
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Definition
| Having two identical alleles. |
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Definition
| A diagram used to determine probabilities of offspring having particular genotypes, given the genotypes of the parents. |
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Definition
| An individual who is heterozygous for a particular gene of interest, and therefore can pass on the recessive allele without showing any of its effects. |
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