During transcription, do both strands of DNA get transcribed into a double stranded RNA molecule? Answer : No. RNA is single stranded and is transcribed from only one of the DNA strands. DNA replication does make copies of both strands....
RNA is composed of strands of nucleotides that are read as a 3 nucleotide codon. These are distinguished by tRNAs that match the codons on one end and carry individual building blocks of a protein chain. What are these building blocks of protein that tRNAs bind? Answer : Amino Acids...
Microtubules consist of helically stacked molecules of the protein (A) Actin (B) Myosin (C) Keratin (D) Tubulin Answer : (D) Tubulin...
Name three classes of cell surface receptors Answer : G-protein-coupled receptors (GPCRS) - ion channel receptors - enzyme-linked receptors (example: receptor tyrosine kinases –RTKs)...
Cytoskeletal elements are responsible for giving cells their shape and provide a basis for cell movement, migration, and cell division. Name the three major classes of cytoskeletal elements in eukaryotic cells. Answer : Microtubules (composed of tubulin); actin filaments (made up of actin); intermediate filaments...
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