Human Biology Custom Edition
11th Edition
ISBN: 9781337631532
Author: Cecie Starr, Beverly McMillan
Publisher: Cengage Learning
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Chapter 21, Problem 2SQ
Summary Introduction
Introduction: DNA is the genetic material in prokaryotes, archaea, and eukaryotes. DNA contains genes that are made of
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_______is/are removed from a new mRNA. a. Introns c. A poly-A tail b. Exons d. Amino acids
RNA splicing removes ________ from the RNA transcript.
a.
exons
b.
axons
c.
introns
Prokaryotic transcripts are _____________ since several proteins can be produced from one mRNA.
a. polycistronic
b. monocistronic
c. tricistronic
d. bicistronic
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- The main function of an mRNA molecule is to_______ . a. store heritable information b. carry a translatable message c. form peptide bonds between amino acidsarrow_forward______ molecules deliver amino acids to the site of protein synthesis. a. DNA b. mRNA c. rRNA d. tRNAarrow_forwardtRNAs contain the ________ that interacts with mRNA. a. docking bay b. anticodon c. codonarrow_forward
- Tightly coiled DNA is ________. a. known as hypermethylated b. translationally regulated c. transcriptionally inactivearrow_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_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_forward
- During 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_forward______is a function of the large ribosomal subunit A.endonucleasE B.tRNA transferase C. phosphorylase D.Transcription initiation E. peptidyl transferasearrow_forwardRegulation of gene expression most typically occurs at the level of ______________. Select one: a. transcription b. post-transcription c. post-translationarrow_forward
- RNA polymerase binds to a _________ to initiate _________. a. mRNA; translation b. promoter; transcription c. primer; transcription d. transcription factor; translationarrow_forwardIf a codon found in the mRNA sequence Tessa CGA, the tRNA anticodon that would bind to that codon region would read... A. CGT b. GCU c. UCG d. GCTarrow_forwardThe first nucleotide in every mRNA molecule ever produced is _________ and the first amino acid of every amino acid chain ever produced is ________ a. guanine; alanine b. uracil; lysine c. cytosine; threonine d. adenine; methioninearrow_forward
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