KP #3: A recessive trait will show ONLY if you have TWO recessive genes. Which guy do you think represents the dominant gene and which guy represents the recessive gene?DOMINANT! DOMINANT BEATS RECESSIVE WHATS THE RULE?KP #2: A dominant trait will show if you have ONE or TWO dominant genes. recessive means weakLETS PRACTICE!Is it a Dominant or a Recessive Gene?bTrfgLRECESSIVERECESSIVERECESSIVERECESSIVEDOMINANTDOMINANTOur two genes combine to make a trait:ĪA = two dominant genes = shows dominant traitaa = two recessive genes = shows recessive traitAa = one dominant and one recessive geneWhat do you think will show? Dominant means strongThis guy represents a recessive gene. KP#1: There are two types of genes: dominant (CAPITAL LETTER) and recessive (lowercase letter). How do we inherit either form of one of these traits? no cleft chinHairline: Two forms?Handedness: Two forms?Earlobes: Two forms?`Curliness of hair: Two forms?Freckles: Two forms?
What are some examples of traits controlled by only ONE gene (from your HW!)Widows peak vs. These are the traits that you either have one form or the other. So lets focus on some traits that are only controlled by ONE gene.
#Why does dominant traits show up rarely skin#
Thats why we have a variety of skin tones in the world!
TRAITSGENE PAIRS OR ALLELESGENESSkin tone is an example of a trait that is controlled by multiple genes. YOU WILL LEARN TODAY!Things we already know:Ĭhromosomes are made up of _Ī pair of genes that interact to code for a trait are called _ We tend to see these traits more often in society.Why is that?
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