BIO 110 - Lect Exam 2 Questions with Accurate Answers

BIO 110 - Lect Exam 2 Questions with
Accurate Answers

Gap 1, DNA synthesis, Gap 2, mitosis - ANSWERSA normal cell cycle consists of
A.
Mitosis, DNA synthesis, Gap 1, Gap 2
B.
Gap 1, DNA synthesis, Gap 2, mitosis
C.
DNA synthesis, Gap 1, Gap 2, mitosis
D.
Gap 1, Gap 2, DNA synthesis, mitosis
E.
Gap 1, DNA synthesis, mitosis, Gap 2

Transformation, transduction, conjugation - ANSWERSA resistant bacterium can share
its resistance with its neighbors through what processes?
A.
Transcription, transfusion, conjugation
B.
Transfer, transduction, conduction
C.
Transformation, transduction, conjugation
D.
Transcription, translation, conduction
E.
Transformation, translation, conjugation

One of several possible versions of a gene - ANSWERSAVPR1a is an allele of the
human gene which controls production of the protein arginine vasopressin receptor.
What is an allele?
A.
A dysfunctional gene
B.
One of several possible versions of a gene
C.
Another word for "gene"
D.
A defective gene
E.
The version of a gene one gets from a parent

,Natural selection - ANSWERSAccording to Darwin, how did "descent with modification"
occur?
A.
Natural selection
B.
Sexual reproduction
C.
Randomly
D.
Genetics and heredity
E.
Mass extinction

The competitive exclusion principle - ANSWERSAccording to Gause, two species that
use the same resource do fine when they exist separately, but one outcompetes the
other when they're together. What does this illustrate?
A.
The life-dinner principle
B.
Mutualism
C.
The competitive exclusion principle
D.
Murphy's law
E.
Competition

50% HbA (normal), 50% HbS (sickle cell) - ANSWERSAccording to Mendel's Rules, a
person who is a carrier of sickle cell disease produces the following gametes during
meiosis.
A.
75% HbA (normal), 25% HbS (sickle cell)
B.
100% HbS (sickle cell)
C.
If you carry sickle cell disease, you can't produce gametes.
D.
50% HbA (normal), 50% HbS (sickle cell)
E.
Mendel didn't know enough about genes or gametes to determine this.

Genetic diversity - ANSWERSAs the climate changes, habitats change and species
have to adapt or die off. What characteristic can help make a species more adaptable to
this type of change?
A.
Genetic diversity

, B.
Species richness
C.
Species cannot be that adaptable.
D.
Geographic relief
E.
Biodiversity

Closely related species tend to live near each other rather than on separate continents.
- ANSWERSBiogeography supports the idea of evolution because
A.
Related species can be found in similar habitats worldwide.
B.
Closely related species tend to live near each other rather than on separate continents.
C.
Closely related species can live far apart from each other.
D.
Endemic species all tend to live on the same continent.
E.
Fossils in one area are often completely unrelated to the living organisms in that area.

Mutualism - ANSWERSClownfish live inside anemones. The clownfish get protection
and the anemone eats scraps from clownfish meals. This is an example of which of the
following?
A.
Competition
B.
Exploitation
C.
A unique interaction among very different species
D.
Competitive exclusion
E.
Mutualism

They were clearly all finches but they had adapted and changed to suit different
environments on different islands. - ANSWERSDarwin's finches supported the idea of
evolution because
A.
The finches supported the idea of natural selection, but not evolution.
B.
They were clearly different finch species that had settled separately on different islands.
C.
Every continent has its own species of finch.
D.