is curly hair a recessive trait

Is it better to have curly or straight hair? - Genes and Hair CurlA practical guide for DNA evidence of descent and relationship Click to order our last book, A practical guide for DNA evidence of descent and relationship Can a couple (one with straight hair, one with curly) have a straight hairy child and a tangled hair, and one of the children has green eyes and the other blue? Both parents have green. Is it possible? 27 August 2004 The quick answer is that it is possible for the couple who describe having children with blue or green eyes. (Although it is less likely, it is even possible to have a son of brown eyes.) In terms of hair type, by the traditional theories that are out there, it is not possible that a couple of straight hairs and a couple of straight hairs have straight hairy children (or, by a strict definition, curly hair children neither!). Of course, genetics are always more complex than traditional theories. One way for the couple who describes having a straight hairy child is if the parent who runs curly has wavy instead of curly hair. It may seem a minor distinction, but from a genetic point of view, the difference is critical. Why would this distinction matter? Remember, for most genes, you have two copies of each gene you inherited from your mother and your father. For most "traditional" genes, there is a dominant and recessive version. What this means is that if you have one or two copies of a dominant version of a gene, you'll look like that gene. To look like the recessive version, you need two copies of the recessive form. For example, with something simple as if the lobes are attached or not, there are two versions (or alleles) of the auditory lobe attachment gene. The free lobe (G) is dominant over attachment (g). What this means is that if you inherit a G version of this gene from your mother or father, you will have free ear lobes. To have attached lobes, you need to get a g copy of both parents. Thus, from a gene point of view (or genotype), both a GG and a Gg person have free ear lobes and a gg has attached ear lobes. How does it work for hair type and eye color? Neither the hair type nor the eye color works in this simple way. There are two versions of the hair type, curly (C) and straight (s). The type of hair is an interesting case of something called incomplete domain. What this means is that with the type of hair, if you have one of each version of the gene, you get a mix of two or wavy hair. So for the hair type, CC da curly, Cs da onda and ss gives straight hair. Go back to your specific situation. As you probably know, the couple you described could only have hairy, undulating children. This is because the parents who are heading curly, CC, can only provide a C gene and the right hairy parent, only one gene s. That means all the kids will be Cs and have wavy hair. Of course, the wave and curling are in the shareholder's eye! If your person headed with curves really had wavy hair, he or she would be a Cs. An undulating hairy person can contribute either to a C or a gene s. If you join a straight haired person (sss), then children would have straight hair (sss) or wavy (Cs). That's probably more than you wanted to know! For the color of the eyes, I will refer to two questions that we have answered before. The first is a description of the traditional eye color heritage that will work well for your case. The second is a good description of how genetic rules are sometimes broken. More information Interactive technique 201 S. Market St. San José, CA 95113 1-408-294-8324 The Tech Interactive 2019 © All rights reserved. The Tech is a 501 (c)(3). Federal ID # 94-2864660 This project was supported by the Department of Genetics, Stanford School of Medicine. Its content is solely the responsibility of the authors and does not necessarily represent the official opinions of the University of Stanford or the Department of Genetics.

Is curly hairdominant or recessive? curly hairdominanthaircurly hairdominant curly hairhair. In this way, is the right or curly hair dominant? It has long been established that curly hair is a dominant feature in Caucasians and straight hair is recessive. However, it has not yet been found that a single gene is the only one responsible for the curly (or straight) hair trait in the Caucasians.curly hairdominantstraighthairAlso, can parents with straight hair have a child with curly hair? No, it is not possible that two straight-haired parents "purebred" produce a curly-haired son. However, two wavy-haired parents, or "short-haired" parents who carry the curly gene but do not express it clearly because of incomplete domination, can produce curly-haired children. brown hair parents old brown hair brown hair brown hair brown hair parents blonde hair parents brown hair parents brown hairscurlydocancurlyredhai children You also know, is curly hair dominant in humans? The first geneticists reported that curly hair was dominant and straight hair was recessive. The most recent scientists believe that more than one gene may be involved. curly hairdominanthair Why is my hair curly when my parents have straight hair? If both parents have curly hair, they are more likely to inherit the curly hair trait. This means that you have received both copies of your parents' curly hair gene. However, one parent might have straight hair while the other has curly hair. both of your parents have curly hair hair, hairy parents have straight hair. Do you have any questions? We answer!8816 April, 202016th April, 20201,3811,381 QuestionsResponsesVideosUsers79% of readers found this page helpful. Click on a star to add your vote

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