BIO 140L Checkpoint #2 Questions With Accurate
Solutions 2025
1 of 46
Definition
The total number of individuals of each species present.
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, Species Abundance Relative Abundance
Species Diversity Species Density
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2 of 46
Definition
-Blast hits are organized by these
-It takes into account both alignment length and
the number of mismatches
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What do Maximum
Biodiversity Likelihood (ML) trees use?
The Bit Score in Basic Local Alignment (BLAST)
BLAST results purpose
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3 of 46
,Term
Genes used for DNA barcoding in animals, plants,
and fungi?
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Fewer of these It synthesizes DNA by
generally indicate a adding nucleotides to a
higher similarity growing DNA chain.
between the
sequences
To amplify the target Animals: COI gene
DNA region for species Plants: rbcL gene
identification. Fungi: ITS gene
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4 of 46
Term
What do both controls do in electrophoresis?
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, Both controls are
used to increase the Both controls serve to
variability of results. confuse the experimental
outcomes.
Both controls help to
validate the
Both controls are experimental results
unnecessary for and confirm that the
experimental validation. observed effects are
specifically due to
the treatment being
tested
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5 of 46
Definition
-Designed to produce a known, desired effect
-It ensures that the experiment is capable of
producing results when the independent variable is
present. In PCR, you expect a band due to
amplification
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Purpose of the positive control
Solutions 2025
1 of 46
Definition
The total number of individuals of each species present.
Give this one a go later!
, Species Abundance Relative Abundance
Species Diversity Species Density
Don't know?
2 of 46
Definition
-Blast hits are organized by these
-It takes into account both alignment length and
the number of mismatches
Give this one a go later!
What do Maximum
Biodiversity Likelihood (ML) trees use?
The Bit Score in Basic Local Alignment (BLAST)
BLAST results purpose
Don't know?
3 of 46
,Term
Genes used for DNA barcoding in animals, plants,
and fungi?
Give this one a go later!
Fewer of these It synthesizes DNA by
generally indicate a adding nucleotides to a
higher similarity growing DNA chain.
between the
sequences
To amplify the target Animals: COI gene
DNA region for species Plants: rbcL gene
identification. Fungi: ITS gene
Don't know?
4 of 46
Term
What do both controls do in electrophoresis?
Give this one a go later!
, Both controls are
used to increase the Both controls serve to
variability of results. confuse the experimental
outcomes.
Both controls help to
validate the
Both controls are experimental results
unnecessary for and confirm that the
experimental validation. observed effects are
specifically due to
the treatment being
tested
Don't know?
5 of 46
Definition
-Designed to produce a known, desired effect
-It ensures that the experiment is capable of
producing results when the independent variable is
present. In PCR, you expect a band due to
amplification
Give this one a go later!
Purpose of the positive control
