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Bio Ch. 10 Vocab
Ch. 10 Vocabulary Word Practice
| Term | Definition |
|---|---|
| Exchange of genetic material between non-sister chromatids from homologous chromosomes during prophase I of meiosis, results in new allele combinations. | Crossing Over |
| Cell with one of each kind of chromosome is said to contain a haploid or n, number of chromosomes. | Haploid |
| Taking the male reproductive organs and crossing them with the females reproductive organs in a plant, usually within the same species. | Pollination |
| Failure of homologous chromosomes to separate properly during meiosis; results in gametes with too many or too few chromosomes. | Nondisjunction |
| Alternative forms of a gene for each variation of a trait of an organism. | Allele |
| Outward appearance of an organism regardless of its genes. | Phenotype |
| Fusion of male and female gametes. | Fertilization |
| When there are two identical alleles for a trait. | Homozygous |
| Haploid female sex cell produced by meiosis. | Egg |
| Offspring formed by parents having different forms of a trait. | Hybrid |
| Diploid cell formed when a sperm fertilizes an egg. | Zygote |
| Trait of an organism that can be masked by the dominant form of the trait. | Recessive |
| Combination of genes in an organism. | Genotype |
| Haploid male sex cell produced by meiosis. | Sperm |
| Characteristic that is inherited; can be either dominant or recessive. | Trait |
| Type of cell division where one body cell produces four gametes, each containing half the number of chromosomes as a parent’s body cell. | Meiosis |
| Mendelian principle stating that genes for different traits are inherited independently of each other. | Law of Independent Assortment |
| Major source of genetic variation among organism caused by re-assortment or crossing over during meiosis. | Genetic Recombination |
| Cell with two of each kind of chromosomes; is said to contain a 2n, number of chromosomes. | Diploid |
| Male and female sex cells; ex. Sperm and eggs | Gamete |
| Pattern of reproduction that involves the production and subsequent fusion of haploid sex cells. | Sexual Reproduction |
| Passing on of characteristics from parents to offspring. | Heredity |
| When there are two different alleles for a trait. | Heterozygous |
| Mendelian principle explaining that because each plant has two different alleles, it can produce two different types of gametes. During fertilization , male and female gametes randomly pair to produce four combinations of alleles. | Law of Segregation |
| Paired chromosomes with genes for the same traits arranged in the same order. | Homologous Chromosomes |
| Observed trait of an organism that masks the recessive form of a trait. | Dominant |
| Branch of Biology that studies heredity. | Genetics |
Created by:
rburrier
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