Questions Answered 2025
Mitosis produces _______ that are ____ the parental cell. Meiosis produces gametes such as sperm
and ovules that are _____ - ✔✔✔Somatic cells such as liver cells
Genetically Identical
Gametes such as sperm and ovules
Genetically different
_____ cells contain exactly half of the numbers of chromosomes of the parent cells whereas ____
cells contain the same number of chromosomes that each of their parent had in their skin -
✔✔✔Haploid
Diploid
Blebbistatin is a drug that inhibits the formation of the contractile ring, therefore inhibits... -
✔✔✔Cytokinesis
Brefeldin A is a drug that inhibits the formation of vesicles from the Golgi apparatus. Which will be
halted in. plants if this drug is added? - ✔✔✔Cytokinesis
The amount of nucleic acid in DNA in the G1 stage is equal to the amount of DNA found in which
stage of mitosis? - ✔✔✔
,Elephants rarely develop cancer, they have 20 copies of the gene p53 gene. Humans and other
mammals have only one copy of this gene. The reason for this is that p53 is a - ✔✔✔tumor-
suppressor gene that halts cell division when there is DNA damage
The M phase checkpoint is very important because it ensures that all the chromosomes are attached
to the spindle apparatus. If the M checkpoint is not working, the cell would be stopped at which
stage? - ✔✔✔metaphase
A patient has a liver transplant in which she received a portion of a healthy liver from her sister.
This patient needs to regenerate the liver. How many chromosomes and chromatids would be found
in her liver in anaphase? - ✔✔✔
Let's imagine a cell in which the spindle apparatus is defective. Which part of the cell that gives
origin to the spindle apparatus is the one more likely to have the defect? - ✔✔✔
Which of the following occurs during prophase of mitosis? - ✔✔✔Chromosomes Condense
The mule has 63 chromosomes in prophase of mitosis. From this, we can infer that the mule has
____ chromosomes and ______ chromatids in metaphase of mitosis. - ✔✔✔63
126
The rice you eat (Oryza sativa) has 24 chromosomes in the leaves. Therefore, rice will have ____
chromosomes and ____chromatids in metaphase of mitosis. - ✔✔✔24
48
A cell containing 46 chromatids in G2 phase will have how many chromosomes during anaphase? -
✔✔✔
A plant cell of Arabidopsis Thaliana, a model organism, was found to have 13.7 picograms of DNA
per cell near the beginning of Interphase in the G1 phase. How much DNA would one expect to find
, in the same type of cell during metaphase? (picograms is just a way of measuring DNA, 1 picogram
is equal to one trillionth of a gram (10-12g), a tiny amount of DNA). - ✔✔✔27.4 pg
A somatic cell of a human (e.g. skin, heart tissue, etc) contains 3.3 picograms of DNA in the G1
phase. How many picograms of DNA in the G2 phase? - ✔✔✔6.6 picograms
Metaphase - ✔✔✔Chromosomes line up in the middle of the spindle
Prophase - ✔✔✔Chromosomes begin to condense
Anaphase - ✔✔✔sister chromatids separate
Telophase (Mitosis) - ✔✔✔The nuclear envelopes begin to form around sets of daughter
chromosomes
Cytokinesis - ✔✔✔The cytoplasm is divided to form two daughter cells
In which phase of the cell cycle are chromosomes replicated? - ✔✔✔S phase
Which of the following is NOT something that occurs during anaphase? Check all that apply -
✔✔✔The nuclear envelope break apart
Chromatin is composed of - ✔✔✔DNA and Proteins
Checkpoints during the cell cycle are important because they? - ✔✔✔Ensure the integrity of the
cell's DNA