Today nearly every nation in the world belongs to the United Nations
a. true
b. false
Ans: a. true
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What process enables a single gene to encode two or more polypeptides that are different in their amino acid sequence?
A. Reverse transcription B. Self-splicing C. Capping D. Alternative splicing E. Regulatory splicing
Which of the following is responsible for the cohesive property of water?
(A) Hydrogen bonds between the oxygen atoms of two adjacent water molecules (B) Covalent bonds between the hydrogen atoms of two adjacent water molecules (C) Hydrogen bonds between the oxygen atom of one water molecule and a hydrogen atom of another water molecule (D) Covalent bonds between the oxygen atom of one water molecule and a hydrogen atom of another water molecule (E) Hydrogen bonds between water molecules and other types of molecules
The definition of phenotypic plasticity is when a single genotype may produce different phenotypes in response to environmental stimuli
a. true b. false
A signal outside a cell triggers changes in the transcription and translation inside the cell through
A) post-translational editing. B) signal transduction pathways. C) protein breakdown.