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Bio 4.1 - Heredity

The Nature of Heredity

QuestionAnswer
• heredity traits are passed from parent to offspring
• genetics the study of heredity and variation
• DNA (deoxyribonucleic acid) (double helix) composed of phosphates and sugars as the sides of the ladder, nitrogenous bases as the rungs of the ladder
• gene portion of DNA that carries info to help produce a particular trait
• locus found on a chromosome and this section carries information for hundreds or thousands of genes
• haploid (N) contains half the number of chromosomes
• diploid (2N) contains 2N of the chromosomes
• polyploids 3 or more sets of chromosomes (usually occurs with plants)
• asexual reproduction new individual produced from single parent by cell division
• sexual reproduction individuals are produced from the fusion of two sex cells (i.e., egg and sperm cells)
Created by: ginmanj
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