life science
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each of the black spaces below before clicking
on it to display the answer.
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| Trait | A quality or characteristic
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| Purebred | bred from parents of the same breed or variety.
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| Hybrid | the offspring of two plants or animals of different species or varieties.
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| Offspring | the product of the reproductive process of an animal. A child
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| Gene | is a locus or region of DNA that encodes a functional RNA
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| Alleles | is a variant form of a gene. Some genes have a variety of different forms.
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| Dominant | is one whose trait always shows up in the organism when the allele is present.
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| Recessive | relating to or denoting heritable characteristics controlled by genes that are expressed in offspring only when inherited from both parents.
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| Phenotype | is an individual's observable traits, such as height, eye color, and blood type
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| Genotype | is an individual's collection of genes. The term also can refer to the two alleles inherited for a particular gene.
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| Homozygous | Alternative forms of a given gene are called alleles, and they can be dominant or recessive.
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| Heterozygous | a gene locus when its cells contain two different alleles of a gene.
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| Codominance | is a relationship between two versions of a gene. Individuals receive one version of a gene, called an allele, from each parent.
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| Meiosis | is a type of cell division that reduces the number of chromosomes in the parent cell by half and produces four gamete cells.
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| Haploid cells | A cell that is the result of meiosis and has half the number of chromosomes as the original cell.
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| Diploid cells | A cell that is the result of mitosis and has the same number of chromosomes as the original cell.
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| Mutations | is a permanent change of the nucleotide sequence of the genome of an organism.
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| Insertion | the addition of DNA into a genetic sequence
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| Deletion | The smallest single base deletion mutations are believed occur by a single base flipping in the template DNA.
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| Substitution | a mutation that switches out DNA code
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| Sex linked gene | A gene located on a sex chromosome, usually the X
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| Carrier | when an allele carries a trait that can be passed onto a offspring
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| Sex chromosome | a chromosome involved with determining the sex of an organism typically one of two kinds.
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| Genetic disorder | is a genetic problem caused by one or more abnormalities in the genome.
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| Pedigree |
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| Selective breeding |
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| Inbreeding |
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| Hybridization |
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| Clone | an exact copy of an organism
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| Genetic Engineering |
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| Gene therapy |
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| Heredity | The passing of phenotypic traits from their parents.
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