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WorksheetsMitosis and Meiosis Study Practice
Total questions: 21
Worksheet time: 11mins
One strand of DNA could be as long as a football field if it were stretched out lengthwise. One of the factors allowing DNA to fit inside the nucleus of a cell is its ability to —
denature from the effect of an enzyme
coil tightly around associated proteins
extend to form very long, thin molecules
break apart into separate genes
What happens during meiosis?
Two sex cells combine
Each sex cell copies itself to form four new chromosomes
Chromosome pairs separate and are distributed into new sex cells
Chromosome pairs remain together when new sex cells are formed
When sex cells combine to produce offspring, each sex cell will contribute
one fourth the number of chromosomes in body cells
twice the number of chromosomes in body cells
the normal number of chromosomes in body cells
half the number of chromosomes in body cells
Which combination of sex chromosomes results in a male human being?
XX
XY
YY
Either XX or YY
What is a karyotype?
A sex-linked genetic disorder
a picture of a baby before it is born
a picture of chromosomes in a cell
a fluid that surrounds a baby before it is born
Mitosis is the stage of the cell cycle during which
the cell's nucleus divides into two new nuclei
the cell's DNA is replicated
the cell divides into two new cells
the cell's cytoplasm divides
What happens during cytokinesis in animal cells?
A new round of mitosis begins
Two new daughter cells are formed
Each organelle divides into two parts
A cell plate forms in the middle of the cell
Cancer is a disease in which cells
grow and divide uncontrollably
die before they can mature
stop producing DNA
die during mitosis
What is copied during replication?
the cell’s organelles
chromosomes
the cell's DNA
two daughter cells
Which organelle is the control center of a cell?
Nucleus
Mitochrondria
ribosome
chloroplast
How does a bacterial cell differ from a plant or animal cell?
it is larger
It does not have a nucleus
it has no cytoplasm
it has no organelles
Chromosomes are made up of
one pair of alleles
many traits joined together
transfer RNA
many genes joined together
When the DNA in a cell is uncoiled and spread throughout the nucleus it is called
chromosomes
chromatids
centromeres
chromatin
Cells spend most of their time in what phase?
interphase
prophase
mitosis
cytokineses
Which answer gives the stages of mitosis in the correct chronological order?
anaphase, prophase, metaphase, telophase
metaphase, anaphase, telophase, prophase
prophase, metaphase, anaphase, telophase
Interphase, metaphase, anaphase, telophase
Meiosis results in which of the following
2 haploid daughter cells
4 haploid daughter cells
2 diploid daughter cells
4 diploid daughter cells
Which of the following distinguishes prophase I of meiosis from prophase of mitosis?
Homologous chromosomes pair up
Nuclear envelope breaks down
chromosomes condense
Chromosomes become visible
What is a tetrad?
The pairing of sister chromatids
The pairing of homologous chromosomes
The pairing of sex chromosomes
The pairing of organelles
The main difference between meiosis and mitosis is that
DNA replicates during mitosis, but does not during meiosis
During mitosis, sister chromatids separate, they do not during meiosis
Mitosis makes genetically identical copies, meiosis does not
Mitosis decreases chromosome number in each cell, while meiosis increases it
Genetic material (DNA) is contained within this part of the cell
cell membrane
nucleus
endoplasmic reticulum
golgi apparatus
Which of the following organelles are found in both plant AND animal cells?
nucleus
chloroplasts
large central vacuole
cell wall
