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FINAL EXAM OF CURRENTLY TESTING LSUE BIOLOGY 1001 WITH ACTUAL CORRECT DETAILED ANSWERS

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FINAL EXAM OF CURRENTLY TESTING LSUE BIOLOGY 1001 WITH ACTUAL CORRECT DETAILED ANSWERS FINAL EXAM OF CURRENTLY TESTING LSUE BIOLOGY 1001 WITH ACTUAL CORRECT DETAILED ANSWERS FINAL EXAM OF CURRENTLY TESTING LSUE BIOLOGY 1001 WITH ACTUAL CORRECT DETAILED ANSWERS FINAL EXAM OF CURRENTLY...

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  • September 9, 2024
  • 30
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • lsue biology 1001
  • final exam of currently testing lsue biology 1001
  • final exam lsue biology 1001

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  • LSUE BIOLOGY 1001

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FINAL EXAM OF CURRENTLY TESTING LSUE BIOLOGY 1001
WITH ACTUAL CORRECT DETAILED ANSWERS




How many generations does it take to develop a new plant species by polyploid?



A) one

B) two

C) ten

D) about twenty - ANSWER-A) one



Both mitosis and meiosis are preceded by



A) prometaphase

B) interphase

C) prophase

D) telophase - ANSWER-B) interphase



Which of the following statements regarding the cell-cycle control system is false?



A) The cell-cycle control system receives messages from outside the cell that influence cell division

B) The cell-cycle control system triggers and controls major events in the cell cycle

C) The cell-cycle control system includes three key checkpoints to complete a cell cycle

D) The cell-cycle control system operates independently of the growth factors - ANSWER-D) The cell-cycle
control system operates independently of the growth factors

,Cancer is not usually inherited because



A) the chromosomal changes in cancer are usually confined to somatic cells

B) people with cancer usually die before reproducing - ANSWER-A) the chromosomal changes cancer are
usually confined to somatic cells



Sister chromatids are



A) found right after a cell divides

B) joined together at a centromere

C) made only of DNA

D) unique to prokaryotes - ANSWER-B) joined together at a centromere



When animal cells are grown in a Petri dish, they typically stop diving once they have formed a single,
unbroken layer on the bottom of the dish. This arrest of division is an example of



A) cell constraint

B) density-dependent inhibition

C) cell division repression

D) growth factor desensitization - ANSWER-B) density dependent inhibition



The process by which the cytoplasm of a eukaryotic cell divides to produce two cells is called



A) mitosis

B) cytokinesis

C) binary fission

D) telophase - ANSWER-B) cytokinesis



Which of the following must occur for a plant or animal to grow and develop normally?

, A) The organism must receive a supply of the appropriate hormones from its parents

B) The organism must be able to control the timing and rate of cell division in different parts of its body

C) Sufficient light must be available to stimulate cell division

D) Sufficient oxygen must be available to stimulate cell division - ANSWER-B) The organism must be able to
control the timing and rate of cell division in different parts of its body



With the exception of identical twins, siblings who have the same two biological parents are likely to look
similar, but not identical, to each other because they have



A) identical chromosomes, but different genes

B) identical genes but different chromosomes

C) the same combination of traits, but different genes

D) a similar but not identical combination of genes - ANSWER-D) a similar but not identical combination of
genes



Which of the following is a feature of plant cell division that distinguishes it from animal cell division?



A) formation of a cell plate

B) formation of a cleavage furrow

C) lack of cytokinesis

D) production of four (rather than two) new cells per mitotic division - ANSWER-A) formation of a cell plate



Looking into your microscope, you spot an unusual cell. Instead of the typical rounded cell shape, the cell
has a very narrow middle separating two bulging ends. It sort of looks like the number 8! Then you realize
that this cell is



A) undergoing cytokinesis

B) in the S phase of interphase.

C) in the G1 phase of interphase.

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