BIO 140L CHECKPOINT #2 QUESTIONS
WITH ACCURATE SOLUTIONS 2026
Definition
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 Likelihood
Biodiversity
(ML) trees use?
The Bit Score in BLAST Basic Local Alignment (BLAST)
results purpose
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3 of 46
,Term
Genes used for DNA barcoding in animals, plants, and
fungi?
Give this one a go later!
Fewer of these generally It synthesizes DNA by adding
indicate a higher similarity nucleotides to a growing DNA
between the sequences chain.
To amplify the target DNA Animals: COI gene
region for species Plants: rbcL gene
identification. Fungi: ITS gene
Don't know?
4 of 46
Term
What do both controls do in electrophoresis?
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, Both controls are used to
Both controls serve to confuse
increase the variability of
the experimental outcomes.
results.
Both controls help to
validate the experimental
Both controls are unnecessary results and confirm that
for experimental validation. the 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 Purpose of PCR amplification
control in DNA barcoding
WITH ACCURATE SOLUTIONS 2026
Definition
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 Likelihood
Biodiversity
(ML) trees use?
The Bit Score in BLAST Basic Local Alignment (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 generally It synthesizes DNA by adding
indicate a higher similarity nucleotides to a growing DNA
between the sequences chain.
To amplify the target DNA Animals: COI gene
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
Both controls serve to confuse
increase the variability of
the experimental outcomes.
results.
Both controls help to
validate the experimental
Both controls are unnecessary results and confirm that
for experimental validation. the 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 Purpose of PCR amplification
control in DNA barcoding
