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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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 ribosome
Which molecule contains the genetic code?
A. rDNA
B. rRNA
C.Ribosome
D. mRNA
E. tRNA
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 next
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- ______ 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_forwardProkaryotic transcripts are _____________ since several proteins can be produced from one mRNA. a. polycistronic b. monocistronic c. tricistronic d. bicistronicarrow_forward
- Ribosomes are often the target of antibiotics used to control bacterial infections. Despite also containing ribosomes, eukaryotic cells are unaffected by antibiotics because of _____________________ A. Eukaryotic cells' ability to avoid uptake of antibiotics B. Structural differences between eukaryotic and prokaryotic ribosomes C. The nuclear envelope that protects the ribosomes from antibiotics D. Functional differences between eukaryotic and prokaryotic ribosomesarrow_forward8) 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_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
- Certain introns can self-excise from RNA. a. false b. truearrow_forward_______is/are removed from a new mRNA. a. Introns c. A poly-A tail b. Exons d. Amino acidsarrow_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
- tRNAs contain the ________ that interacts with mRNA. a. docking bay b. anticodon c. codonarrow_forwardDuring translation, __________________. a. A cell divides to make 2 new cells b. A cell divides to make 4 new cells c. DNA is used as a template to create mRNA d. mRNA, rRNA, and tRNA work together to make proteinsarrow_forwardWhich of the following describes the interactions between a codon and an anticodon? A. A codon and an anticodon become covalently bonded together due to the activity of the ribosome. B. A codon and anticodon do not come into direct contact because codons are in the nucleus but anticodons are in the cytoplasm. C. A codon and anticodon are attracted to each other due to hydrogen bonding. D. A codon and an anticodon are linked together by an amino acid. ..arrow_forward
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