A dominant allele is denoted by a capital letter (A versus a). Since each parent provides one allele, the possible combinations are: AA, Aa, and aa. Offspring whose genotype is either AA or Aa will have the dominant trait expressed phenotypically, while aa individuals express the recessive trait.
What organ integrates the brain nervous organs with the endocrine system? Hypothalamus
Fast twitch muscle fiber
<span>Fast twitch muscle fiber is known to be most powerful and
lowest in endurance and usually
activated when the body is near maximum exertion. They are identified by a quick
contraction time and usually low resistance to fatigue </span>but are used in powerful bursts of movements like
sprinting. however, muscle fibers have the greatest capacity to produce energy via the anaerobic energy system.