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Bio Unit 3 Lec 20 #1

Bio Unit 3 Lec 20 #1: Non-Mendelian Genetics

QuestionAnswer
When the dominant allele does NOT completely mask the recessive allele Incomplete Dominance
If an organism is heterozygous, there is a ______ of phenotypes (R1R1 white flowers + R2R2 red flowers produces R1R2 pink flowers) Blending
When both alleles are equally expressed when they are present, it is called ______ Codominance
An example of codominance is _______ Human Blood Type
1A1A (type A) + 1B1B (type B) _______ 1A1B (Type AB) is human blood type example of codominance Produces
When ONE trait is influences by SEVERAL genes it is called _______ Inheritance Polygenic
Eye color, height, skin color, and hair color are examples of Polygenic ______ because one trait is influenced by several genes Inheritance
When ONE gene influences more than one trait, it is called ______ Pleiotropy
Examples of pleiotropy include shape and texture of starch grains and ______ cell anemia Sickle
The gene that causes sickle cell anemia is a _______ allele Recessive
When an individual is _______ recessive, they have sickle cell anemia Homozygous
When an individual is heterozygous, they have protection from _____ Malaria
Genes for sex-linked traits are found on the _____ chromosome X
Red-Green color blindness is an example of a ____ _____ trait Sex Linked
More ____ have red-green color blindness they do not have a second ___ chromosome that can mask the recessive allele Males; X
If a mother is a carrier of the recessive allele (XRXr) and dad has normal vision (XRY), girls will have ___% chance of red-green color blindness, but boys will have ____% chance of having red-green color blindness 0; 50
The ___ chromosomes is larger than the ____ X; Y
Created by: scarangelo
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