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Caption: The genes are said to be dominant or recessive, depending on their mode of expression. A dominant gene is a hereditary characteristic that expresses itself in being present on only one of the chromosomes of a pair. A recessive gene is a hereditary characteristic that must be present on both chromosomes of a pair to be expressed.
Credit: Album / Universal Images Group
Image size: 1620 × 1544 px | 7.2 MB
Print size: 13.7 × 13.1 cm | 637.8 × 607.9 in (300 dpi)