explain the laws of heredity
Answers
Answer:
Mendel's Laws of Heredity are usually stated as:
1) The Law of Segregation: Each inherited trait is defined by a gene pair. Parental genes are randomly separated to the sex cells so that sex cells contain only one gene of the pair. Offspring therefore inherit one genetic allele from each parent when sex cells unite in fertilization.
2) The Law of Independent Assortment: Genes for different traits are sorted separately from one another so that the inheritance of one trait is not dependent on the inheritance of another.
3) The Law of Dominance: An organism with alternate forms of a gene will express the form that is dominant.
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Answer:
Explanation:
Mendel’s laws of heredity refer to biological concepts of heredity first uncovered by the Austrian monk Gregor Mendel, who lived in the early 1800s. Mendel conducted experiments crossing various sizes and colors of pea plants and recording the outcomes of these crosses – revolutionized the understanding of heredity. Taken together, his laws make up the principles of Mendelian inheritance.
At the time of his experiments, Mendel knew nothing about genes or chromosomes. But through his work, he came to understand that garden peas transmit their visible traits (phenotypes) like color and height to their offspring in a measurable way. Also, Mendel found that through careful observation and record-keeping, he could predict the color and height of pea plants.