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Which of the following statements about sister chromatids is TRUE? - ANSWER
✓ They are formed as the result of semiconservative DNA replication
Cell A has 5 picograms of DNA. Cell B has 10 picograms of DNA. Both cells are
from the same organism. Which of the following is the best description of the cell
cycle stage of each cell? - ANSWER ✓ Cell A is in G1 phase; Cell B is in G2
phase
The cell at left is beginning mitosis. How many chromosomes will be in each
daughter cell from the cell at the end of mitosis and cytokinesis? - ANSWER ✓ 4
Which of the following statements is true of DNA synthesis? - ANSWER ✓ DNA
polymerase requires a single-stranded template to synthesize a complementary
DNA strand
All organisms breathe. - ANSWER ✓ false
All cells are the same size and shape - ANSWER ✓ false
Ribosomes are platforms for making... - ANSWER ✓ proteins
what is true about prokaryotic cells? - ANSWER ✓ Prokaryotic cells use the
same genetic code as humans
Prokaryotic cells contain ribosomes
All prokaryotic cells have a cell membrane.
All currently living prokaryotic cells came from other cells.
All prokaryotic cells contain DNA and RNA.
, Who is most likely to have the highest fitness? - ANSWER ✓ A cow that has one
calf that is healthy until reproductive age
An individual can evolve. - ANSWER ✓ false
Heritable variation is necessary for natural selection to occur. - ANSWER ✓ true
Which of the following describes a major difference between eukaryotes and
prokaryotes? - ANSWER ✓ Eukaryotic cells have a membrane-bound nucleus;
prokaryotic cells do not.
Which feature is shared by Archaea and Bacteria but not found in any member of
Eukarya? - ANSWER ✓ Lack of a nucleus
A synapomorphy that defines the domain Eukarya is - ANSWER ✓ The presence
of a nuclear membrane
Which of the following pieces of evidence would support the endosymbiotic
theory? - ANSWER ✓ Mitochondria have their own circular genomes,
Mitochondria reproduce by fission (like bacteria), Mitochondria have their own
ribosomes that are similar in structure to those of bacteria, Mitochondria have
double membranes
Which of the following supports the infolding theory to explain the origin of the
nuclear envelope? - ANSWER ✓ The nuclear envelope is a double membrane
According to the theory of endosymbiosis, the outer mitochondrial membrane is
derived from: - ANSWER ✓ the plasma membrane of an ancient eukaryote
ancestor
Which of the following features are not found strictly in the eukaryotes? -
ANSWER ✓ Ribosomes
Cyanide (a poison) binds with proteins involved in producing ATP. If a eukaryotic
cell is exposed to cyanide, most of the cyanide will be found within the -
ANSWER ✓ mitochondria
,Green algae are photosynthetic eukaryotes. They contain ____. - ANSWER ✓
mitochondria, chloroplasts, and a nucleus
Which of the following describes the structure of DNA in photosynthetic
eukaryotes? - ANSWER ✓ Circular in mitochondria and chloroplasts, linear in
nuclei
Which are evolutionarily more closely related? - ANSWER ✓ Archaea and
Eukarya
Which of the following were present in the common ancestor of Bacteria, Archaea
and Eukarya? - ANSWER ✓ DNA, RNA, and proteins
Prokaryotes make up a clade - ANSWER ✓ false
Archaea and Eukarya (and common ancestor) are a clade - ANSWER ✓ true
Which of the following characteristics is true of all protists? - ANSWER ✓
contain a nucleus
The MRCA of all protists probably had - ANSWER ✓ chloroplasts,
mitochondria, endoplasmic reticulum, a cell membrane
If you selected the smallest clade that included all protists, what else would it
include? - ANSWER ✓ fungi, animals, and plants
Fungi are most closely related to: - ANSWER ✓ animals
Which of the following is a list of taxa that, along with their common ancestors,
constitutes a clade? - ANSWER ✓ eukaryotes
Based on the currently accepted theories for the evolution of eukaryotic cells,
which of the following cell structures currently found in Green Algae evolved from
the plasma membrane of an ancestral cell? - ANSWER ✓ the nuclear envelope,
the outer membrane of mitochondria, the outer membrane of chloroplasts, the
endoplasmic reticulum
Land plants are a monophyletic group - ANSWER ✓ true
, A multicellular organism has cells containing a nucleus, endoplasmic reticulum,
and mitochondria but not chloroplasts. What type of organism could it be? -
ANSWER ✓ protist or animal
A unicellular heterotrophic eukaryote that ingests its food would be classified as a
- ANSWER ✓ protist
Which of the following is a major difference between fungi and plants? -
ANSWER ✓ Fungi are heterotrophic; plants are autotrophic
Which of the following taxa have members that can photosynthesize? - ANSWER
✓ protist, prokaryote, or plant
How are animals different from fungi? - ANSWER ✓ Animals have no cell walls,
fungi have cell walls made of chitin
An organism with cells that include a cell wall could be a ____ - ANSWER ✓
fungus, prokaryote, plant
Within the animals, the most abundant type are - ANSWER ✓ insects
All of the following were pieces of evidence that Watson and Crick used to help
them solve the structure of DNA EXCEPT: - ANSWER ✓ DNA strands are
antiparallel
The monomer unit of DNA is a - ANSWER ✓ Nucleotide
In a DNA double helix, the chemical bonds that form between the complementary
nitrogenous bases are - ANSWER ✓ hydrogen bonds
In a DNA double helix, the chemical bonds that form between nucleotides to
create the DNA backbone are - ANSWER ✓ covalent bonds
Which of the following nucleotide sequences represents the complement to the
DNA strand 5´ - AGATCCG- 3´? - ANSWER ✓ 3´ - TCTAGGC- 5'