ACTUAL EXAM 2024-2025 WITH COMPLETE REAL
QUESTIONS AND CORRECT ANSWERS (100%
CORRECT VERIFIED SOLUTIONS) LATEST UPDATED
VERSION |GUARANTEED PASS.
Transcription is best defined as a process by which
a. A base pair substitution results in a mutation of the amino acid
sequence
b. DNA polymerase binds to the promoter site on RNA.
c. RNA directs the synthesis of ribosomes for protein synthesis
d. RNA is synthesized from a DNA template
answer- RNA is synthesized from a DNA template
What is the most common cause of Down syndrome?
a. paternal translocation
b. paternal viral illness
c. nondisjunction error
d. maternal viral illness
answer- nondisjunction error
,A person with XXXY has the genetic disorder called __________
syndrome.
a. down
b. fragile x
c. klinefelter
d. turner
answer- klinefelter
Cystic fibrosis is caused by an __________________ gene.
a. x-linked dominant
b. autosomal recessive
c. autosomal dominant
d. x-linked recessive
answer- autosomal recessive
What causes the clinical manifestations of confusion, convulsions,
cerebral hemorrhage, and coma in hypernatremia?
A) high sodium in the blood vessels pulls water out of the brain cells
into the blood vessels, causing brain cells to shrink
B) high sodium in the brain cells pulls water out of the blood vessels
into the brain cells, causing them to swell
,C) high sodium in the blood vessels pulls potassium out of the brain
cells, which slows the synapses in the brain
D) high sodium in the blood vessels draws chloride into the brain cells
followed by water, causing the brain cells to swell
Ans: A- high sodium in the blood vessels pulls water out of the brain
cells into the blood vessels, causing brain cells to shrink
Organelle that contains the code needed for oxidative phosphorylation
is:
a. mitochondria
b. lysosomes
c. nucleus
d. vacuoles
answer- mitochondria
Programmed cell death is an active process of cellular self-destruction. It
is also referred to as
a. apoptosis
b. necrosis
c. metastatic calcification
d. gangrene
answer- Apoptosis
, The nucleolus is a small dense structure composed mainly of RNA and
cellular DNA. What causes the DNA to bind and fold into
chromosomes?
a. amino acid sequences
b. histones
c. polymerase
d. miRNA
answer- Histones
Duchenne's Muscular Dystrophy is never transmitted from father to son.
It is a good example of
a. sex-linked recessive disease
b. autosomal dominant disease
c. x-linked recessive disease
d. chromosome structure abnormality disease
answer- x-linked recessive disease
Which cell is the body's primary defense against parasite invasion?
a. t lymphocytes
b. neutrophils
c. eosinophils