MGRADES UPDATED EXAMS
Biol1001 Fontenot final UPDATED
ACTUAL Exam Questions and CORRECT
Answers
strictly speaking the phrase "like beget like" refers to - CORRECT ANSWER - asexual
reproduction
during which phase of meiosis do synapsis and crossing over occur - CORRECT
ANSWER - Prophase 1
how many generations does it take to develop a new plant species by polyploidy - CORRECT
ANSWER - one
which of the following statements about nondisjunction is false? - CORRECT ANSWER -
in mammals, extra copies of the Y chromosome are typically inactivated
during which phase of mitosis does the nuclear envelope re-form - CORRECT ANSWER -
telophase
the phase of mitosis during which the mitotic spindle begins to form is - CORRECT
ANSWER - prophase
which of the following is probably the main factor responsible for phenomenon of density
dependent inhibition - CORRECT ANSWER - physical contact of cell-surface proteins
between adjacent cells
which of the following statements regarding down syndrome is false - CORRECT
ANSWER - Down Syndrome is least likely in mothers over 40
Which of the following statements is false? - CORRECT ANSWER - An X chromosome
is an autosome
, MGRADES UPDATED EXAMS
if a chromosome fragment breaks off and then reattaches to the original chromosome but in the
reverse direction the resulting chromosomal abnormality is called an - CORRECT
ANSWER - inversion
a benign tumor differs from a malignant tumor in that the benign tumor - CORRECT
ANSWER - does not metastasize
without crossing over - CORRECT ANSWER - genetic recombination could not occur
which of the following occurs during interphase? - CORRECT ANSWER - cell growth
and duplication of the chromosomes
eukaryotic chromosomes differ from prokaryotic chromosomes in that they - CORRECT
ANSWER - are housed in a membrane enclosed nucleus
sexlinked conditions are more common in men than in women because - CORRECT
ANSWER - men need to inherit only one copy of the recessive allele for the condition to
be fully expressed
which of the following statements is false - CORRECT ANSWER - incomplete dominance
supports the blending hypothesis
the phenotypic ratio resulting from a dihibrid cross showing independent assortment is expected
to be - CORRECT ANSWER - 9:3:3:1
which of the following statements regarding prenatal testing is false - CORRECT
ANSWER - chronic villus sampling is typically performed later in the pregnancy than
amniocentsis
Biol1001 Fontenot final UPDATED
ACTUAL Exam Questions and CORRECT
Answers
strictly speaking the phrase "like beget like" refers to - CORRECT ANSWER - asexual
reproduction
during which phase of meiosis do synapsis and crossing over occur - CORRECT
ANSWER - Prophase 1
how many generations does it take to develop a new plant species by polyploidy - CORRECT
ANSWER - one
which of the following statements about nondisjunction is false? - CORRECT ANSWER -
in mammals, extra copies of the Y chromosome are typically inactivated
during which phase of mitosis does the nuclear envelope re-form - CORRECT ANSWER -
telophase
the phase of mitosis during which the mitotic spindle begins to form is - CORRECT
ANSWER - prophase
which of the following is probably the main factor responsible for phenomenon of density
dependent inhibition - CORRECT ANSWER - physical contact of cell-surface proteins
between adjacent cells
which of the following statements regarding down syndrome is false - CORRECT
ANSWER - Down Syndrome is least likely in mothers over 40
Which of the following statements is false? - CORRECT ANSWER - An X chromosome
is an autosome
, MGRADES UPDATED EXAMS
if a chromosome fragment breaks off and then reattaches to the original chromosome but in the
reverse direction the resulting chromosomal abnormality is called an - CORRECT
ANSWER - inversion
a benign tumor differs from a malignant tumor in that the benign tumor - CORRECT
ANSWER - does not metastasize
without crossing over - CORRECT ANSWER - genetic recombination could not occur
which of the following occurs during interphase? - CORRECT ANSWER - cell growth
and duplication of the chromosomes
eukaryotic chromosomes differ from prokaryotic chromosomes in that they - CORRECT
ANSWER - are housed in a membrane enclosed nucleus
sexlinked conditions are more common in men than in women because - CORRECT
ANSWER - men need to inherit only one copy of the recessive allele for the condition to
be fully expressed
which of the following statements is false - CORRECT ANSWER - incomplete dominance
supports the blending hypothesis
the phenotypic ratio resulting from a dihibrid cross showing independent assortment is expected
to be - CORRECT ANSWER - 9:3:3:1
which of the following statements regarding prenatal testing is false - CORRECT
ANSWER - chronic villus sampling is typically performed later in the pregnancy than
amniocentsis
