QUESTION IMAGE
Question
- which statement describes codominance accurately?
a. neither allele is expressed, resulting in an absence of trait.
b. one allele completely dominates the other, hiding its effects.
c. both alleles are fully expressed, leading to a phenotype that shows characteristics of both alleles distinctly.
d. both alleles blend to create a new phenotype.
- clades in a phylogenetic tree represent:
a. unique species
b. groups of species sharing a common ancestor
c. dissimilar species
d. ancestral species
- what term refers to the internal body functions or processes that aid an organism’s survival?
a. structural adaptations
b. behavioral adaptations
c. physiological adaptations
d. environmental adaptations
- what does the mitochondria do within the cell?
a. stores genetic information.
b. produces energy (atp) through cellular respiration.
c. controls the entry and exit of substances.
d. synthesizes proteins and lipids.
- what role do drones play in modern conservation efforts?
a. agricultural monitoring
b. antipoaching surveillance
c. urban planning
d. fishing control
- how much energy is typically transferred from one trophic level to the next?
a. 25%
b. 50%
c. 90%
d. 10%
- which type of model uses mathematical equations to predict outcomes?
a. mathematical model
b. physical model
c. computer model
d. conceptual model
Question 36 (Codominance)
Codominance is a genetic concept where both alleles in a heterozygote are fully expressed, so the phenotype shows distinct characteristics of both. Option a is incorrect (no trait absence), b is dominance, d is incomplete dominance (blending). So c matches.
A clade in a phylogenetic tree is a group of species (and their descendants) that share a common ancestor. Option a (unique species) is wrong, c (dissimilar) is wrong, d (accidental) is wrong. So b is correct.
Physiological adaptations are internal body functions/processes (like metabolism, hormone regulation) that help survival. Structural are physical features, behavioral are actions, environmental is about surroundings. So c is correct.
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c. Both alleles are fully expressed, leading to a phenotype that shows characteristics of both alleles distinctly.