IVY TECH APHY 102 2026 BODY SYSTEMS AND HUMAN PHYSIOLOGY REVIEW PAPER ANSWERS COMPLETE LEARNING PACK

IVY TECH APHY 102 2026 BODY SYSTEMS
AND HUMAN PHYSIOLOGY REVIEW PAPER
ANSWERS COMPLETE LEARNING PACK

◉ Dominant-recessive inheritance
Answer: describe the inheritance patterns of certain traits. That is,
they describe how likely it is for a certain phenotype to pass from
parent to offspring. Sexually reproducing species like humans have
two copies of each gene. The two copies, called alleles, can be
slightly different from each other. The differences can cause
variations in the protein that's produced, or they can change protein
expression: when, where, and how much protein is made. Proteins
affect traits, so variations in protein activity or expression can
produce different phenotypes.


◉ Dominant allele
Answer: produces a dominant phenotype in individuals who have
one copy of the allele, which can come from just one parent. An
individual with one dominant and one recessive allele for a gene will
have the dominant phenotype. They are generally considered
"carriers" of the recessive allele: the recessive allele is there, but the
recessive phenotype is not.


◉ Recessive allele