BIOLOGY 1001 LSU HRINCEVICH EXAM 3 2026 SCIENCE TEST PAPER QUESTIONS ANSWERS GRADED A+

BIOLOGY 1001 LSU HRINCEVICH
EXAM 3 2026 SCIENCE TEST PAPER
QUESTIONS ANSWERS GRADED A+
◉ proteins are the ____ ____ of the cell.
Answer: construction workers


◉ proteins control.
Answer: cell shape
function
reproduction
synthesis of biomolecules


◉ there is a flow of information from ____ to _____.
Answer: DNA; protein


◉ DNA in eukaryotes is kept in the.
Answer: nucleus


◉ Protein synthesis occurs at ____ in ____.
Answer: ribosomes; cytoplasm


◉ DNA infor is carried by ____ from the nucleus to the cytoplasm.
Answer: RNA

,◉ RNA differs from DNA.
Answer: single-stranded
uses sugar ribose
base uracil


◉ messenger RNA.
Answer: carries DNA gene information to the ribosome


◉ single-stranded "intermediate copy" of DNA.
Answer: mRNA


◉ transfer RNA.
Answer: carries amino acids to the ribosomes for addition to the growing
protein


◉ have a "cloverlead" shape.
Answer: tRNA


◉ ribosomal RNA.
Answer: part of the structure of ribosomes


◉ each ribosome consists of two subunits - one small and one large.

, Answer: rRNA


◉ genetic information is transcribed into ____ and then translated into
____.
Answer: RNA; protein


◉ information in a DNA gene is copied into mRNA in the process of.
Answer: transcription


◉ mRNA, tRNAs carrying amino acids, and a ribosome, synthesizes a
protein in the process of.
Answer: translation


◉ genetic code.
Answer: translates the nucleotide sequence into amino acids in proteins


◉ bases in mRNA are read by the ribosome in triplets called.
Answer: codons


◉ individuals who cracked genetic code.
Answer: nirenberg and matthaei


◉ nirenberg and matthaei's experiment.