Individuals who have one dominant allele and one recessive allele for a trait are referred to as ________
Fill in the blank(s) with correct word
heterozygotes
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Consider the HIV enzyme called protease. The amino acid residues at the active site are highly hydrophobic. In designing a drug that would bind to the active site and jam it, researchers should use a molecule that is _____
A) hydrophobic B) polar C) charged D) acidic
A population of voles (small mammals) live in a shady forest. Originally, the voles are a light tan color, but then a dark brown coloration arises by a new mutation. The darker voles are harder for predators to see in the leaf litter, thus they are less susceptible to predation. After 10 generations the majority of voles in the population are the dark brown color. In the figure below, the solid red line represents the number of light colored individuals before the mutation and the black dashed line represents the number of dark brown individuals after 10 generations. What type of natural selection are the population of voles going through?
A. Directional selection.
B. Stabilizing selection.
C. Diversifying selection (disruptive selection).
D. Balancing selection.
E. Negative frequency-dependent selection.
What does the ozone layer absorb?
a. heat b. pollution c. ultraviolet radiation d. infrared radiation e. oxygen
__________ hold neighboring cells together. Fill in the blank(s) with the appropriate word(s)