BIOL 1202 Exam 2 – Greg 2025/2026
Exam Questions and Answers | A+ Score
Assured
A phylogenetic group composed of an ancestral species and all of its
descendents is ______ .
monophyletic
paraphyletic
polyphyletic
quasiphyletic - 🧠 ANSWER ✔✔monophyletic
A particular shared derived character _____ .
is unique to the members of one clade
, should be shared by both the ingroup and outgroup when one is attempting
to produce a phylogenetic reconstruction of ancestry
Neither of the first two answers are correct.
Both of the first two answers are correct. - 🧠 ANSWER ✔✔is unique to the
members of one clade
The reason paralogous genes can diverge from each other within the same
gene pool, whereas orthologous genes diverge only after gene pools are
isolated from each other, is that ___.
having an extra copy of a gene permits modifications to the copy without
loss of the original gene product
paralogous genes can occur only in diploid species; thus they are absent
from most prokaryotes
polyploidy is a necessary precondition for the occurrance of sympatric
speciation in the wild
having multiple copies of genes is essential for the occurrance of sympatric
speciation in the wild - 🧠 ANSWER ✔✔having an extra copy of a gene
permits modifications to the copy without loss of the original gene product
Exam Questions and Answers | A+ Score
Assured
A phylogenetic group composed of an ancestral species and all of its
descendents is ______ .
monophyletic
paraphyletic
polyphyletic
quasiphyletic - 🧠 ANSWER ✔✔monophyletic
A particular shared derived character _____ .
is unique to the members of one clade
, should be shared by both the ingroup and outgroup when one is attempting
to produce a phylogenetic reconstruction of ancestry
Neither of the first two answers are correct.
Both of the first two answers are correct. - 🧠 ANSWER ✔✔is unique to the
members of one clade
The reason paralogous genes can diverge from each other within the same
gene pool, whereas orthologous genes diverge only after gene pools are
isolated from each other, is that ___.
having an extra copy of a gene permits modifications to the copy without
loss of the original gene product
paralogous genes can occur only in diploid species; thus they are absent
from most prokaryotes
polyploidy is a necessary precondition for the occurrance of sympatric
speciation in the wild
having multiple copies of genes is essential for the occurrance of sympatric
speciation in the wild - 🧠 ANSWER ✔✔having an extra copy of a gene
permits modifications to the copy without loss of the original gene product
