45. Where in the cell would rRNA be found?
A Nucleus
B. Ribosomes
C. Golgi Apparatus
D. Cholorplast
46. What is the role of messenger RNA?
A. To bring the DNA message to the mitochondrion
B. To bring the tRNA
message to the nucleus
C. To bring the DNA message to the ribosome
D To take anino acids to the ribosome
47. An mRNA codon has the following sequence: ACU
What is the corresponding tRNA sequence called, and what would the sequence be?
A. Anticodon, UAG
B. Codon, TGA
C. TCode; TGU
D. Anticodon; UGA

45. B. Ribosomes

46. C. To bring the DNA message to the ribosome

47. D. Anticodon; UGA

Explanation:

45. rRNA stands for ribosomal RNA. It is an important component of all ribosomes. It is non-coding RNA meaning it does not produce a protein. It is a ribozyme (an RNA with enzymatic activity) which carries out protein synthesis in ribosomes.

46. mRNA stands for messenger RNA. It is transcribed from DNA. After transcription, it goes to the ribosome where it is translated into protein.

47. tRNAs posses anticodons that are complementary to RNA codons. In RNAs, A pairs with U, and G pairs with C.

d. the weight of the book

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