LSUE Biology 1001 Final Questions with Detailed Verified Answers

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LSUE Biology 1001 Final Questions with
Detailed Verified Answers

Question: During which stage of meiosis do synapsis and crossing over occur?
Answer: Prophase I


Question:Eukaryotic cells spend most of their cell cycle in which phase
Answer: interphase


Question:Which of the following is probably the main factor responsible for
the phenomenon of density dependent inhibition
Answer: physical contact of cell surface proteins between adjacent cells


Question:Which of the following occurs during interphase
Answer: cell growth and duplication of the chromosomes


Question:which of the following is a feature of plant cell division that
distinguishes it from animal cell division
Answer: formation of a cell plate


Question:Eukaryotic chromosomes differ from prokaryotic chromosomes in
that they
Answer: are house in a membrane enclosed nucleu


Question:Which of the following statements about nondisjunction is false

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Answer: in mammals, extra copies of the Y chromosomes are typically
inactivated


Question:Strictly speaking, the phrase "like begets like" refers to
Answer: asexual reproduction only


Question:at a chiasma, two _______ are attached to each other
Answer: homologous or non sister chromatids


Question:which of the following statements is false
Answer: An X chromosome is an autosome


Question:As a patch of scraped skin heals, the cells fill in the injured area but
do not grow beyond that. This is an example of
Answer: density dependent inhibition


Question:A karyotype is most like
Answer: photographs of every couple at a high school prom


Question:Karyotyping
Answer: can reveal alterations in chromosome number


Question:Sister chromatides are
Answer: Joined together at a centromere


Question:Without crossing over
Answer: genetic recombination could not occur