EBK HUMAN BIOLOGY
11th Edition
ISBN: 8220100545931
Author: MCMILLAN
Publisher: Cengage Learning US
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Chapter 21, Problem 4SQ
Summary Introduction
Introduction: Ribonucleic acid (RNA) is the genetic material of some viruses and is involved in transcription, translation, gene regulation in prokaryotes, archaea, and eukaryotes. A class of RNA is messenger RNA (mRNA).
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________ are encoded by a nucleotide triplet codon.
a.
Amino acids
b.
Chromosomes
c.
RNA strands
Ribosomal RNA ____________________.
a. Carries amino acids to the ribosome
b. Carries information from the DNA to the ribosome
c. Helps make up the ribosome
d. Carries oxygen to cells
Define the following terms: a. rRNA b. tRNA c. mRNA d. siRNA e. miRNA
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- Match each statement below with the correct RNA molecule. A. rRNA B. mRNA C. tRNA D. uRNA 1. Contains the codon 2. is read by the ribosome 3. contains the anticodon 4. Transport amino acids to the ribosomearrow_forwardWhich molecule contains the genetic code? A. rDNA B. rRNA C.Ribosome D. mRNA E. tRNAarrow_forwardChoose the combination of answers that most accurately completes the statement. Which of these features is found in eukaryotes but not bacteria? a. polygene mRNAs c. stop codon b. intronsarrow_forward
- Complete the phrases with the correct word or words. The task is to match the lettered items with the correct numbered items. Appearing below is a list of lettered items. Following that is a list of numbered items. Each numbered item is followed by a drop-down. Select the letter in the drop down that best matches the numbered item with the lettered alternatives. a. methionine b. ribosome c. codon d. AUG e. UAC The mRNA moves out of the nucleus and attaches to a The first codon of an mRNA molecule is always As soon as the first codon is in place, a tRNA molecule arrives with the anti-codon The first tRNA to arrive always carries the amino acid called, The ribosome scoots along the mRNA to read the nextarrow_forward______ molecules deliver amino acids to the site of protein synthesis. a. DNA b. mRNA c. rRNA d. tRNAarrow_forward_________ and _________ of RNA specify amino acid assembly and protein synthesis. a. codons and anti-codons b. mitochondria and lysosomes c. codons and dynein d. microtubules and actinarrow_forward
- 8) Which of these describes the function of RNA polymerase? A. Amplifies the “message" by making multiple copies of an mRNA molecule after it has been transcribed from DNA B. Converts a protein sequence to mRNAarrow_forwardProkaryotic transcripts are _____________ since several proteins can be produced from one mRNA. a. polycistronic b. monocistronic c. tricistronic d. bicistronicarrow_forwardWhich of the following enzymes adds a new amino acid to the growing chain of a protein during protein synthesis? a. aminoacyl-tRNA synthetase b. peptidyl synthetase c. peptidyl transferase d. ribosomal synthetasearrow_forward
- Describe the function of the ribosome in two sentences.arrow_forwardWhat genetic material in a living cell which is single stranded involved in the coding of genes for protein synthesis? * 1 point a. DNA b. RNA C. mRNA d. tRNAarrow_forward_______is/are removed from a new mRNA. a. Introns c. A poly-A tail b. Exons d. Amino acidsarrow_forward
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