An allele<span> that expresses its phenotypic effect even when heterozygous with a recessive </span><span>allele
I feel ya struggle, night night!
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Explanation:
Plant) Banana
Trait: Smaller seeds, larger fruit, thinner skin
People breed plants to gain desired produce with more yield. After years of genetic nurturing, the perfect bananas were created with smaller seeds, larger sizes, and an offspring with greater abundance for maximum profit.
Animal) Chihuahua
Trait: Smaller size
Chihuahuas are a great example of artificial selection in a domesticated animal because over time people successfully breaded different dogs to acquire the size of the chihuahua.
Answer:
The initial effect of a stimulus on a sensory receptor is a small, local change in membrane potential called a(n) <u>receptor potential</u>.
Explanation:
The process used by sensory receptors to transform the physical energy of the sensory stimulus into action potentials, the fundamental unit of information in the nervous system, is called sensory transduction. The entrance of positive charges towards the interior (mainly Na +), will cause a depolarization; while if there is an exit of positive charges from the interior (mainly K +) then hyperpolarization will occur. This change in membrane potential is called the receptor potential. A receptor potential is then a local potential that can sometimes represent the only response that results from the transduction process, for example in the taste sensory cell.