In the human life cycle, somatic cells are diploid and gametes are haploid
a. true
b. false
Ans: a. true
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A couple has a baby that is monosomic for the X chromosome. This most likely occurred during meiosis because:
A. there was nondisjunction of the sister chromatids. B. there was an inversion in the X chromosome and crossover occurred. C. there was a duplication in the X chromosome and crossover occurred. D. there was translocation of another chromosome onto the X chromosome. E. either there was an inversion in the X chromosome or there was a duplication in the X chromosome and crossover occurred.
In humans, the gene for eye color is an example of a ________ trait
A. Monomorphic B. Polymorphic
How are simple diffusion and facilitated diffusion similar to each other?
a. They both belong to active transport. b. They both transport through the aid of a transport molecule. c. They both require energy. d. They both belong to passive transport.
Ernest Rutherford's key experiment on alpha particle bombardment of gold foil was important to the development of
A. the concept that atoms have a homogenous distribution of protons throughout the atom. B. gold as an element. C. the modern model for atomic structure. D. detection methods for protons. E. alpha particle emitters.