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Title: BIOL 1003 REAL EXAM 2025 PRACTICE QUESTIONS AND CORRECT ANSWERS/ BIOLOGY 1002 LSU PREP TEST BANK WITH 500 EXAM PRACTICE QUESTIONS AND CORRECT VERIFIED ANSWERS
Description: BIOL 1003 REAL EXAM 2025 PRACTICE QUESTIONS AND CORRECT ANSWERS/ BIOLOGY 1002 LSU PREP TEST BANK WITH 500 EXAM PRACTICE QUESTIONS AND CORRECT VERIFIED ANSWERS
Description: BIOL 1003 REAL EXAM 2025 PRACTICE QUESTIONS AND CORRECT ANSWERS/ BIOLOGY 1002 LSU PREP TEST BANK WITH 500 EXAM PRACTICE QUESTIONS AND CORRECT VERIFIED ANSWERS
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ar divisions the
germ line has gone through and the more chance of errors occurring
...
what are some other sources of mutation that occur through damage to DNA - CORRECT
ANSWER-X-Rays
some chemicals cause base changes such that they cant pair in the same way
...
Convergence - CORRECT ANSWER-Homology: Common ancestor, form and
function may or may not be the same - similarities by descent
...
- similarities through independent
adaptation
parsimony - CORRECT ANSWER-given the choice between two or more explanations and we
have nothing else to go on, make the choice that makes the fewest ad hoc assumptions
...
heuristic searching - CORRECT ANSWER-attempt to locate the most parsimonious tree, this will
be the global optimum (increases in parsimony)
...
multiple sequence alignment - CORRECT ANSWER-this is the basic data input for phylogenetics,
where eaach site or column is a homologous character
phylogeny based on pairwise distances - CORRECT ANSWER-identifying overall similaritie
through distances between each sequences for each pair of species i
what are transitions and transversions in relation to sequence changes of nucleotide bases? and
which are more likely to occur in sequence changes - CORRECT ANSWER-transitions are
changes from one purine (i
...
A to G or vice versa) and transversions are from pyramidine to purine
or vice versa
...
e by applying different probability
weightings to different kinds of changes
...
monophyletic - CORRECT ANSWER-an ancestor and all of its extant descendents
polyphyletic - CORRECT ANSWER-extant taxa united by a divergent trait
paraphyletic - CORRECT ANSWER-an ancestor and some, but not all, of its descendents
...
Overspecialized adaptations are examples of what?
a
...
b
...
c
...
d
...
e
...
- CORRECT ANSWER-B
What is temporal isolation an example of?
a
...
b
...
c
...
d
...
- CORRECT ANSWER-A
Exon - CORRECT ANSWER-codes for something 10%
Intron - CORRECT ANSWER-spacer regions 90%
allopatric isolation - CORRECT ANSWER-physically separated from each other
sympatric isolation - CORRECT ANSWER-physically not separate but little interaction
Turner syndrome - CORRECT ANSWER-(XO) in females with only one X chromosome
...
short with heart, hearing and kidney problems
...
no real symptoms
except learning disabilities and tallness
...
small balls,
partial breasts, protruding hips, infertile
...
tall, bad achne,
lots of testosterone
(YO) - CORRECT ANSWER-dies in embryo bc no X chromosome
Inversion mutation - CORRECT ANSWER-when pieces of DNA break off and reattach some
where else
...
Translocation mutation - CORRECT ANSWER-when pieces of DNA break off and reattach some
where else
...
Deletion mutation - CORRECT ANSWER-when one or more nucleotides are removed
Insertion mutation - CORRECT ANSWER-when one or more nucleotides are added
Silent mutation - CORRECT ANSWER-does not alter the amino acid
Nonsense mutation - CORRECT ANSWER-introduces a Stop codon
Missense mutation - CORRECT ANSWER-replace amino acids
Frameshift mutation - CORRECT ANSWER-resulted from deletion and insertion if not a multiple
of 3
Substitution (point mutation) - CORRECT ANSWER-changes a single nucleotide
...
late 1850s
...
founding species and evolve
Smith - CORRECT ANSWER-1769-1839
...
catastrophism
Hutton - CORRECT ANSWER-1726-1797
...
very old earth
Lamarak - CORRECT ANSWER-1744-1829
...
evolution/natural selection
Premating isolation mechanism - CORRECT ANSWER-prevent mating between species
postmating isolation mechanism - CORRECT ANSWER-prevent mating between species
differently
Geographical Isolation - CORRECT ANSWER-prevents breeding because they physically live in
different places
...
EX: Bishop pines breed in the summer and Monterey pines breed in early spring
Behavior isolation - CORRECT ANSWER-when species can't mate because of different mating
rituals
...
EX: snails that their shell swirl directions
Gametic incompatibility - CORRECT ANSWER-when sperm of one species cannot fertilize with
the egg of another
...
EX: mule or liger
Adaptive Radiation - CORRECT ANSWER-the rise of many new species in a short period of time
Start codon - CORRECT ANSWER-AUG
Stop codon - CORRECT ANSWER-UAA, UAG, UGA
Title: BIOL 1003 REAL EXAM 2025 PRACTICE QUESTIONS AND CORRECT ANSWERS/ BIOLOGY 1002 LSU PREP TEST BANK WITH 500 EXAM PRACTICE QUESTIONS AND CORRECT VERIFIED ANSWERS
Description: BIOL 1003 REAL EXAM 2025 PRACTICE QUESTIONS AND CORRECT ANSWERS/ BIOLOGY 1002 LSU PREP TEST BANK WITH 500 EXAM PRACTICE QUESTIONS AND CORRECT VERIFIED ANSWERS
Description: BIOL 1003 REAL EXAM 2025 PRACTICE QUESTIONS AND CORRECT ANSWERS/ BIOLOGY 1002 LSU PREP TEST BANK WITH 500 EXAM PRACTICE QUESTIONS AND CORRECT VERIFIED ANSWERS