ASU MIC 205 PENTON EXAM 2 NEWEST
2024-2025 ACTUAL EXAM COMPLETE 200
QUESTIONS AND CORRECT ANSWERS
(VERIFIED ANSWERS) |ALREADY GRADED
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What describes the ability of cell to communicate with each
other in biofilms? - CORRECT ANSWER-quorum sensing
Through quorum sensing, an _____ is produced to regulate
specific genes and lets the bacterial cell monitor the cell
population density. - CORRECT ANSWER-autoinducer
A signaling molecule that monitors quorum sensing is a ____
____. - CORRECT ANSWER-homoserine lactone
Red algae will produce ____ which block the homoserine
lactone signaling molecules, to stop exopolysaccharide
synthesis. - CORRECT ANSWER-Furanones
This is secreted in quorum sensing that makes it highly resistant.
- CORRECT ANSWER-exopolysaccharide
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What is the entire genetic component of an organism that
includes the nucleotide sequences and genes? This controls that
synthesis of all molecules in an organism? - CORRECT
ANSWER-genome
Genome has _____ that carry information for synthesis of RNA
and proteins. - CORRECT ANSWER-genes
What is the complete set of genes in the genome called? -
CORRECT ANSWER-genotype
What are the physical features and functional traits of an
organism from the expression of genes? - CORRECT
ANSWER-phenotype
The entire DNA genome being duplicated for reproduction. -
CORRECT ANSWER-binary fission
theory that states that, in cells, information only flows from
DNA to RNA to proteins - CORRECT ANSWER-central dogma
,3|Page
The ____ ____ of a nucleotide gives the molecule a negative
charge and is always linked to carbon 5. - CORRECT
ANSWER-phosphate group
The ____ ____ of a nucleotide is always linked to carbon 1. -
CORRECT ANSWER-pentose sugar
Deoxyribose in DNA lacks ____ at carbon 2. - CORRECT
ANSWER-OH
Ribose in RNA has ____ at carbon 2. - CORRECT ANSWER-
OH
In a nucleotide, there is one of 5 _____ ____. - CORRECT
ANSWER-nitrogenous base
Carbon can make 4 bonds, meaning there is a fourth bond to
______ on carbon 2. - CORRECT ANSWER-hydrogen
What describes 2 strands of DNA that are in a double helix
formation with hydrogen bonds between its nucleotide bases? -
CORRECT ANSWER-nucleic acid
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What describes DNA strands being opposite, or one side going 5
to 3 and the other side going 3 to 5? - CORRECT ANSWER-
antiparallel
What describes DNA base having a nucleotide that it codes for
on a new strand that pairs with the original strand? - CORRECT
ANSWER-complementary
Where is the prokaryotic genome contained? - CORRECT
ANSWER-chromosomes and plasmids
What is the main portion of DNA that is responsible for its daily
needs? There is one per cell, its circular, and it folds in the
cytoplasm to create a nucleoid. It is also associated with proteins
and RNA for replication and translation. - CORRECT
ANSWER-chromosomes
What are small, replicate independently, and has nucleotides for
non-essential genes? They carry information for their own
replication and have traits that have survival advantages. -
CORRECT ANSWER-plasmids
What describes nuclear chromosomes and extranuclear DNA? -
CORRECT ANSWER-eukaryotic genomes
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