Which of the following best explains the attraction of water molecules to each other?
A) Nonpolar covalent bond
B) Polar covalent bond
C) Ionic bond
D) Hydrogen bond
E) Electron-proton interaction
D
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What is required for the transposition of a retroelement? Select all that apply.
_____ DNA polymerase _____ RNA polymerase _____ Reverse transcriptase _____ Integrase
For most eukaryotic genes, translation begins in the____
a. cytosol b. nucleolus c. nucleus d. mitochondria e. Golgi apparatus
In the universal ABO blood grouping system,
there are four phenotypes: A, B, AB, and O. Various populations have different frequencies of these four phenotypes but, in most populations O is most common and AB least common. The ABO blood grouping system exemplifies
a. polymorphism. b. genetic drift. c. the bottleneck effect. d. the Red Queen effect. e. the founder effect.
Structures present in two different species that both have been inherited from a common ancestor are said to exhibit ________
Fill in the blank(s) with correct word