UCI Bio 93 Final questions with accurate answers
A large % of offspring will have what phenotype? Ans✓✓✓ The
parental phenotype.
A small % of offspring will have what type of phenotype and why?
Ans✓✓✓ they will have the non-parental phenotype because linkage
can break.
Action potentials can travel _______________ distances and only in
___________________ direction. Ans✓✓✓ long, one.
Can genes be regulated during translation? Ans✓✓✓ Yes! Genes are
regulated all throughout gene expression, and both transcription and
translation are involved in gene expression.
Concentration of K+ is ________________ inside the cell. Ans✓✓✓
greater.
Concentration of Na+ is ____________________ outside the cell.
Ans✓✓✓ greater.
DNA is __________ but not ___________. Ans✓✓✓ redundant,
ambiguous.
Does brain cancer involve neurons? Ans✓✓✓ No, because neurons
cannot divide, and tumors are resulted from uncontrolled cell division.
,High temperature _________ membrane fluidity. Ans✓✓✓ Reduces.
How are polymers broken up? Ans✓✓✓ Hydrolysis -- the addition of a
water molecule to break the covalent bond between the monomers.
How are polymers formed? Ans✓✓✓ Dehydration -- the removal of a
water molecule to allow the monomers to covalently bond.
How do activator proteins work? Ans✓✓✓ They have two domains
(regions). One binds to DNA, the other activates DNA.
How do cells know which cell type to become? Ans✓✓✓ An egg's
cytoplasm contains material (cytoplasmic determinants) that is
distributed unevenly. Upon division, the cells contain different
cytoplasmic determinants, causing different gene expression.
How do females account for having more than 1 X chromosome?
Ans✓✓✓ The cells randomly convert 1 chromosome into a barr body.
Since males have one X chromosome, females will shut off one of their
X chromosomes randomly to prevent over expression.
How does information travel in the nervous system? Ans✓✓✓
Information is transmitted from a presynaptic cell (neuron) to a
postsynaptic cell (a neuron, muscle, or gland cell). When information is
received from another neuron, the dendrites pass the signal to the cell
,body. The cell body then sends this information to the axon, depending
on the strength of the signal.
How does meiosis increase genetic variability? Ans✓✓✓ Independent
assortment (meiosis 1 -- homologous chromosomes separate
independently), crossing over (genetic recombination, prophase 1), and
random fertilization (any egg can join with any sperm -- most effective
way to obtain genetic variability).
How many checkpoints are there in the cell cycle? Ans✓✓✓ 3 -- G1
checkpoint, G2 checkpoint, and the M checkpoint.
If 2n = 18, how many chromosomes come from the mother? Ans✓✓✓
9 -- half from mom and half from dad
In a hypertonic solution, a red blood cell will ______. Ans✓✓✓
Shrivel, due to the amount of water inside the cell that wants to escape to
balance the solution. WATER FLOWS WHERE THE MOST
SOLUTES ARE.
In a hypotonic solution, a red blood cell will ______. Ans✓✓✓ Lyse
(swell) due to the intense influx of water inside the cell. WATER
FLOWS WHERE THE MOST SOLUTES ARE.
In an isotonic solution, a red blood cell will ______. Ans✓✓✓ Remain
the same.
, In cell development, what is cell determination? Ans✓✓✓ commits a
cell to its final state.
In cell development, what is cell differentiation? Ans✓✓✓ The process
cells undergo to become specialized in structure and function.
In cell development, what is cell division? Ans✓✓✓ Mitosis.
In cell development, what is morphogenesis? Ans✓✓✓ the combination
of cell types and give an organism its shape.
In reduction, you ________ e-. Ans✓✓✓ gain.
Is a lipid a polymer? Ans✓✓✓ No, because they are formed from 2
different types of subunits.
Is Achondroplasia (dwarfism) dominant or recessive? Ans✓✓✓
dominant.
Is albinism dominant or recessive? Ans✓✓✓ recessive.
Is DNA replication a catabolic or anabolic process? Ans✓✓✓ Anabolic,
because it builds a pathway and requires energy to do so.
Is Huntington's disease dominant or recessive? Ans✓✓✓ dominant.
A large % of offspring will have what phenotype? Ans✓✓✓ The
parental phenotype.
A small % of offspring will have what type of phenotype and why?
Ans✓✓✓ they will have the non-parental phenotype because linkage
can break.
Action potentials can travel _______________ distances and only in
___________________ direction. Ans✓✓✓ long, one.
Can genes be regulated during translation? Ans✓✓✓ Yes! Genes are
regulated all throughout gene expression, and both transcription and
translation are involved in gene expression.
Concentration of K+ is ________________ inside the cell. Ans✓✓✓
greater.
Concentration of Na+ is ____________________ outside the cell.
Ans✓✓✓ greater.
DNA is __________ but not ___________. Ans✓✓✓ redundant,
ambiguous.
Does brain cancer involve neurons? Ans✓✓✓ No, because neurons
cannot divide, and tumors are resulted from uncontrolled cell division.
,High temperature _________ membrane fluidity. Ans✓✓✓ Reduces.
How are polymers broken up? Ans✓✓✓ Hydrolysis -- the addition of a
water molecule to break the covalent bond between the monomers.
How are polymers formed? Ans✓✓✓ Dehydration -- the removal of a
water molecule to allow the monomers to covalently bond.
How do activator proteins work? Ans✓✓✓ They have two domains
(regions). One binds to DNA, the other activates DNA.
How do cells know which cell type to become? Ans✓✓✓ An egg's
cytoplasm contains material (cytoplasmic determinants) that is
distributed unevenly. Upon division, the cells contain different
cytoplasmic determinants, causing different gene expression.
How do females account for having more than 1 X chromosome?
Ans✓✓✓ The cells randomly convert 1 chromosome into a barr body.
Since males have one X chromosome, females will shut off one of their
X chromosomes randomly to prevent over expression.
How does information travel in the nervous system? Ans✓✓✓
Information is transmitted from a presynaptic cell (neuron) to a
postsynaptic cell (a neuron, muscle, or gland cell). When information is
received from another neuron, the dendrites pass the signal to the cell
,body. The cell body then sends this information to the axon, depending
on the strength of the signal.
How does meiosis increase genetic variability? Ans✓✓✓ Independent
assortment (meiosis 1 -- homologous chromosomes separate
independently), crossing over (genetic recombination, prophase 1), and
random fertilization (any egg can join with any sperm -- most effective
way to obtain genetic variability).
How many checkpoints are there in the cell cycle? Ans✓✓✓ 3 -- G1
checkpoint, G2 checkpoint, and the M checkpoint.
If 2n = 18, how many chromosomes come from the mother? Ans✓✓✓
9 -- half from mom and half from dad
In a hypertonic solution, a red blood cell will ______. Ans✓✓✓
Shrivel, due to the amount of water inside the cell that wants to escape to
balance the solution. WATER FLOWS WHERE THE MOST
SOLUTES ARE.
In a hypotonic solution, a red blood cell will ______. Ans✓✓✓ Lyse
(swell) due to the intense influx of water inside the cell. WATER
FLOWS WHERE THE MOST SOLUTES ARE.
In an isotonic solution, a red blood cell will ______. Ans✓✓✓ Remain
the same.
, In cell development, what is cell determination? Ans✓✓✓ commits a
cell to its final state.
In cell development, what is cell differentiation? Ans✓✓✓ The process
cells undergo to become specialized in structure and function.
In cell development, what is cell division? Ans✓✓✓ Mitosis.
In cell development, what is morphogenesis? Ans✓✓✓ the combination
of cell types and give an organism its shape.
In reduction, you ________ e-. Ans✓✓✓ gain.
Is a lipid a polymer? Ans✓✓✓ No, because they are formed from 2
different types of subunits.
Is Achondroplasia (dwarfism) dominant or recessive? Ans✓✓✓
dominant.
Is albinism dominant or recessive? Ans✓✓✓ recessive.
Is DNA replication a catabolic or anabolic process? Ans✓✓✓ Anabolic,
because it builds a pathway and requires energy to do so.
Is Huntington's disease dominant or recessive? Ans✓✓✓ dominant.
