Worksheetsaudrey's amazing cheat guide
Total questions: 19
Worksheet time: 10mins
the parents cells, allowing unicellular organisms to reproduce identical offspring...
asexually
sexually
half that of
identical to
Sample W represents cells examined from a bud near the top of a tree. Approximately what percent of the time do cells in buds spend in mitosis in this maple tree?
40%
20%
30%
10%
The chemical colchicine disrupts cell division. Which cell process would most likely stop if colchicine were added to a culture of human liver cells?
meiosis
mitosis
crossing over
active transport
What significant contribution does this process make to sexual reproduction?
decreased genetic variation
decreased chromosome
increased genetic variation
increased chromosome number
Why must DNA replication have to occur before a cell can divide by mitosis?
to cause all of the cells to have half the amount of chromosomes
allow crossing over to occur in each cell produced
to cause on cell produced to have double to number of chromosomes
to maintain the same number of chromosomes as the parent cell
Why is it important for the cells of multicellular organisms to undergo the process of mitosis?
mitosis produces cells that are identical to the original cell, tissue replacement
mitosis enables unicellular organisms to grow into multicellular organisms
mitosis produces cells that are identical to the original cell, production of sex cells
mitosis creates the diverse variety of cell types that make up organisms
How are mitosis and meiosis?
both require DNA replication
both produce gametes
both have two cell divisions
both involve crossing over
During which phase of the cell cycle does the most cell growth occur?
mitosis
interphase
prophase
cytokenesis
A student listed some characteristics of mitotic cell division
1 and 4
3, 4, and 5
1 and 5
2, 3, and 4
A drug called colchicine can be used to prevent the formation of the spindle fibers and to stop the chromosomes from moving. What scenario is colchicine best used?
to stop sexual reproduction in an overcrowded pond
to treat an ulcer in the stomach of a sick patient
to stop amoebas from reproducing asexually in drinking water
to treat a broken bone after it has been set
Analyze the diagram to answer the question. Which statement is correct about cells y and z?
cells y and z are identical to one another and to cell w
cells y and z are not identical to one another
cells y and z are not identical to cell w
cells y and z are identical to one another but not to cell w
What is the correct sequence for these steps?
X, Z, Y, W
X, W, Y, Z
X, Z, W, Y
X, Y, W, Z
What would most likely be produced when a cell with eight chromosomes undergoes mitosis?
four cells with eight chromosomes each
four cells with four chromosomes each
two cells with eight chromosomes
two cells with four chromosomes each
a student is preparing a presentation about the cell cycle. which summary accurately explains the process?
a cell replicates dna, replicates organelles, preps for division, divides twice, and then divides again
a cell replicated its dna and organelles, divides twice, grows, and begins cycle again
a cell grows, replicates dna, divides, replicates organelles, and begins cycle
a cell grows, replicates organelles, preps for division by replicating dna, divides, begins cycle
What diagnosis would a geneticist make if presented with the information revealed through the karyotype shown?
female with trisomy 21
male with no defects
female with no defects
male with trisomy 21
dna replication occurs before meiosis 1 but not before meiosis 2. why is that important?
uneven division of the cytoplasm
increased genetic diversity
daughter cells with the haploid number of chromosomes
offspring that are genetically identical to the parents
what process can occur in both mitosis and meiosis?
independent assortment
gene mutation
fertilization
crossing over
what evidence is there that cancer is a disorder of the cell cycle?
can be treated with drugs
cells can divide rapidly
can cause a variety of symptoms and death
can affect multiple regions of the body
mitosis ensures the chromosome number of the daughter cells is...
asexually
sexually
half that of
identical to
