Concepts of Biology
1st Edition
ISBN: 9781938168116
Author: Samantha Fowler, Rebecca Roush, James Wise
Publisher: OpenStax College
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Textbook Question
Chapter 9, Problem 3RQ
Prokaryotes contain a ______ chromosome, and eukaryotes contain ________ chromosomes.
a. single-stranded circular; single-stranded linear
b. single-stranded linear: single-stranded circular
c. double-stranded circular; double-stranded linear
d. double-stranded linear; double-stranded circular
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A plasmid differs from the bacterial chromosome in that it is __________.
A. significantly smaller
B. always found as a single copy of DNA in a cell
C. circular
D. double-stranded
A.
significantly smaller
B.
always found as a single copy of DNA in a cell
C.
circular
D.
double-stranded
Which of the following statements is a lie?
Select one:
a. In humans, the genetic code is stored in 46 double-stranded DNA molecules.
b. DNA packaging of prokaryotes into compact sizes is distinct to eukaryotic DNA packaging.
c. Plasmids cause bacterial mutation and diversification thus they are essential components for cellular reproduction.
A DNA nucleotide is made of all of the following components except ____.
A. a nitrogen-containing base
B. deoxyribose sugar
C. phosphate
D. phospholipids
QUESTION 2
Messenger RNA carries genetic information from the chromosomes to the ____.
A. ribosomes
B. endoplasmic reticulum
C. nucleolus
D. plasmids
QUESTION 3
3. A ___ codes for a specific sequence of amino acids in a protein.
A. gene
B. nucleotide
C. polyribosome
D. nucleic acid
QUESTION 4
4. The study of the structure, function, and interaction of cellular proteins is called ____.
A. bioinformatics
B. proteomics
C. genomics
D. haplotypics
QUESTION 5
5. Free-living organisms with a foreign gene are called ____ organisms.
A. transposed
B. transmutated
C. transparent
D. transgenic
QUESTION 6
6. DNA is shaped like a/an ____.
A. alpha protein
B. double helix…
Chapter 9 Solutions
Concepts of Biology
Ch. 9 - Figure 9.10 You isolate a cell strain in which the...Ch. 9 - Which of the following does cytosine pair with? a....Ch. 9 - Prokaryotes contain a ______ chromosome, and...Ch. 9 - DNA replicates by which of the following models?...Ch. 9 - The initial mechanism for repairing nucleotide...Ch. 9 - A promoter is ______. a. a specific sequence of...Ch. 9 - Portions of eukaryotic mRNA sequence that are...Ch. 9 - The RNA components of ribosomes are synthesized in...Ch. 9 - How long would the peptide be that is translated...Ch. 9 - Control of gene expression in eukaryotic cells...
Ch. 9 - Post-translational control refers to: a....Ch. 9 - Describe the organization of the eukaryotic...Ch. 9 - Describe the structure and complementary base...Ch. 9 - How do the linear chromosomes in eukaryotes ensure...Ch. 9 - Transcribe and translate the following DNA...Ch. 9 - Describe how controlling gene expression will...
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- We will perform a gram stain on our samples, so be sure to bring your instructions on gram staining. Will this procedure stain all cells? A. Yes, all prokaryotic and eukaryotic cells will be stained purple or pink. B. All prokaryotic cells will be stained. Eukaryotic cells will not be stained. C.Mycobacteria and a few other groups with special cell wall structures will not be stained. All other prokaryotic cells will be stained. Eukaryotic cells will be stained pink. D. Mycobacteria and a few other groups with special cell wall structures will not be stained. All other prokaryotic cells will be stained. Eukaryotic cells will be stained purple.arrow_forwardA plasmid is a circle of________ . a. RNA c. either RNA or DNA b. DNA d histone proteinsarrow_forwardThe nucleotides from a bacterial cell were found to have the following abundances: 39% uracil; 41% adenine, 9% cytosine; 8% guanine. What type of molecule is the genome of the bacteria likely made of? a. Double stranded DNA b. Single stranded DNA c. Messenger RNA d. Double stranded RNAarrow_forward
- let's say you are poking a needle thru a bacteria. which structure (a-f below) would the needle come into contact with first? a. peptido-glycan b. DNA c. plasma membrane d. outer membrane of cell wall e. capsule f. ribosme assume bacteria has all these items (A to F) outer membrane of cell wall plasma membrane ribosme O peptido-glycan DNA capsulearrow_forwardA eukaryotic cell has a mutation that prevents mRNA from leaving the nuclear envelope. What result should be observed in this cell? 1. DNA will not replicate. 2. A polypeptide will not be synthesized. 3. RNA will not be transcribed from DNA. 4. A cap and poly-A tail will not be attached to the mRNA.arrow_forwardA. Instead of having a linear chromosome, bacteria have a circular chromosome. B. Organisms living in fresh water environment need to use to remove water out of the cell so they don't burst. C. is covered in a silica test which is the main component of making glass. D. Name the structure labeled as "d".arrow_forward
- What 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_forwardFor each species, all ___ in the complete set of chromosomes is the ___. A.| genomes; library B.| mRNA; start of cDNA C.| DNA; genome D.| cDNA; start of mRNAarrow_forwardIn RNA, ___________ pairs with adenine. A.Group of answer choices cytosine guanine thymine uracil B.The main differences between introns and exon is Group of answer choices Exons code for amino acids and Introns do not Introns code for RNA and exons code for DNA Introns code for amino acids and exons do not Introns enter the nucleus and exons leave the nucleusarrow_forward
- Which of the following nucleic acids is a component of ribosomes? a.DNA b.Transfer RNA c.Ribosomal RNA d.Messenger RNAarrow_forwardScientists wanted to determine what molecule held the 'gene'. If they did a study in which a cell was infected by a virus, which part of the virus actually caused the infection inside the cell? Group of answer choices DNA ribosome protein RNA 2. A scientist observing a cell during gene expression would be able to easily distinguish it as a prokaryotic cell by which of the following observations? Group of answer choices as soon as the DNA introns are removed from the template after the 5' caps are converted to mRNA after a transcription initiation complex has been formed during transcription once the pre-mRNA has been converted to mRNAarrow_forwardWhich of the following statements about codons in prokaryotic cells and eukaryotic cells is correct? A. Prokaryotic codons are longer than eukaryotic codons. B. Eukaryotic codons are made of DNA, and prokaryotic codons are made of RNA. C. Prokaryotes do not have mRNA, so there are no codons. D. Codons are very similar, no matter whether the cell is prokaryotic or eukaryotic.arrow_forward
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