QUESTIONS AND ANSWERS 100

LSUE Biology 1001 Final EXAM

QUESTIONS AND ANSWERS 100%

SOLVED (Newest 2025) How many generations does it take to develop a new plant species by polyploid?

• one
• two
• ten
• about twenty - Correct Answers ✅A) one

Both mitosis and meiosis are preceded by

• prometaphase
• interphase
• prophase
• telophase - Correct Answers ✅B) interphase

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

• The cell-cycle control system receives messages from

outside the cell that influence cell division

• The cell-cycle control system triggers and controls major

events in the cell cycle 1 / 4

LSUE Biology 1001 Final EXAM

QUESTIONS AND ANSWERS 100%

SOLVED (Newest 2025)

• The cell-cycle control system includes three key

checkpoints to complete a cell cycle

• The cell-cycle control system operates independently of

the growth factors - Correct Answers ✅D) The cell-cycle control system operates independently of the growth factors Cancer is not usually inherited because

• the chromosomal changes in cancer are usually confined

to somatic cells

• people with cancer usually die before reproducing -

Correct Answers ✅A) the chromosomal changes cancer are usually confined to somatic cells Sister chromatids are

• found right after a cell divides
• joined together at a centromere
• made only of DNA
• unique to prokaryotes - Correct Answers ✅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 2 / 4

LSUE Biology 1001 Final EXAM

QUESTIONS AND ANSWERS 100%

SOLVED (Newest 2025) on the bottom of the dish. This arrest of division is an example of

• cell constraint
• density-dependent inhibition
• cell division repression
• growth factor desensitization - Correct Answers ✅B)

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

• mitosis
• cytokinesis
• binary fission
• telophase - Correct Answers ✅B) cytokinesis

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

• The organism must receive a supply of the appropriate

hormones from its parents 3 / 4

LSUE Biology 1001 Final EXAM

QUESTIONS AND ANSWERS 100%

SOLVED (Newest 2025)

• The organism must be able to control the timing and rate

of cell division in different parts of its body

• Sufficient light must be available to stimulate cell division
• Sufficient oxygen must be available to stimulate cell

division - Correct Answers ✅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

• identical chromosomes, but different genes
• identical genes but different chromosomes
• the same combination of traits, but different genes
• a similar but not identical combination of genes - Correct

Answers ✅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?

• formation of a cell plate
• formation of a cleavage furrow
• / 4