UCI Bio 93 Final Review |100% Correct|
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 _____...
UCI Bio 93 Final Review |100% Correct|
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.
Less energy = _______ stable. *Ans*✨more.
Low temperature ____________ membrane fluidity. *Ans*✨Increases.
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