AOS SAC 1 GENETICS

• Same length and size: Both chromosomes in a pair look nearly identical under a microscope because they are the same physical length.

• Centromere placement: The centromere (the pinched middle part of a chromosome) is located in the exact same spot on both.

Autosomes control general body traits, while sex chromosomes determine if an individual is male or female

Codominance is a genetic pattern where two different versions of a gene (alleles) are both fully expressed at the same time.. Neither allele hides or dominates the other. Instead, both traits show up clearly side by side without blending.

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Complete dominance is a genetic pattern where one allele completely hides the effect of another allele in a heterozygous organism. The visible trait of the dominant allele shows up, and the recessive allele stays hidden

Incomplete dominance is a genetic pattern where neither allele is fully dominant over the other. Instead, the two alleles blend together in a heterozygous individual.

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