BIO 5C LECTURE 2 - GENETICS BEYOND MENDELComplete Review Guide 2025 | Pass First Try | Verified Test Bank

BIO 5C LECTURE 2 - GENETICS BEYOND MENDEL
CERTIFICATION GUIDE
FOR 2025/2026 TESTS|MOST COMMON
QUESTIONS WITH CORRECTLY VERIFIED ANSWERS
(LATEST QUIZZES) |ALREADY A+
GRADED|GUARANTEED PASS
conditions for deviations from simple mendelian patterns of inheritance - - when alleles
are not completely dominant or recessive

- when a gene has more than two alleles

- when a gene produces multiple phenotypes

complete dominance - phenotypes of the heterozygote and the dominant homozygote
are identical

incomplete dominance - the phenotype of F1 hybrids is somewhere between the
phenotypes of the two parental varieties

codominance - two alleles affect the phenotype in separate, distinguishable ways

recessively inherited disorders - - only show up in individuals homozygous for the allele
(completely recessive)

- most people with this are born to carrier parents

carriers - heterozygous but phenotypically normal

example of genes that have more than two alleles - blood types (A, B, O = IA, IB, and i)

pleiotropy - The ability of a single gene to have multiple effects

examples of pleiotropy - cystic fibrosis, sickle cell anemia

epistasis - one gene affects the phenotype of another due to interaction of their gene
products