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Word Bank:
16
23
46
anaphase
bacterium
Benign
binary fission
Cancer
cell cycle
centromere
Chromatids
circular shape
Cri du chat
crossing-over
diploid
G1
G1
G1, S, G2, M, and C
gametes
Interphase
Jacobs
karyotype
karyotype
Klinefelter
Malignant
meiosis
meiosis I
Metaphase
metaphse I
microtuble
Mitosis
Poly-X
prophase
S
somatic
spindle fibers
trisomy
Turners
1) Chromatids are joined strands of duplicated genetic material.
2) A centromere is a protein disk that attaches two chromatids to each other in a
chromosome.
3) You can study a karyotype to learn about the chromosomes present in a somatic cell.
4) A diploid cell is one that is designated by the symbol 2n, has chromosomes found in pairs,
and has two homologues of each chromosome.
5) Your skin cells have 46 chromosomes, but the number of chromosomes found in a egg or
sperm is 23.
6) Body cells of an organism that has a haploid number of 8, will have 16 chromosomes.
7) The process by which bacteria produce is called binary fission.
8) The bacterium chromosome has a circular shape.
9) In a bacterium, cell division takes place when the DNA is copied, a new cell wall forms
between the DNA copies, and the cell splits into two cells.
10) The stage in interphase of the cell cycle that occupies most of the cell's life is G1.
11) G1, S, G2, M, and C are the correct sequence of the cell cycle.
12) G1 is growth and S is the copying of DNA.
13) Metaphase is the phase of mitosis that is characterized by the arrangement of all
chromosomes along the equator of the cell.
14) A spindle fiber is a specialized form of microtuble.
15) A typical cell contains 46 chromosomes. After mitosis and cell division, each of the two new
cells formed from the original cell gets a complete set of 46 chromosomes.
16) Mitosis is a process by which a cell's nucleus divides.
17) Separation of homologues occurs during meiosis I.
18) When crossing-over takes place, chromosomes exchange corresponding segments of DNA.
19) A picture of a cell's chromosomes is called a karyotype.
20) The sequence of events that occurs in a cell from one mitotic division to the next is called
the cell cycle.
21) Collectively, the time spent in G1, S, and G2 is called Interphase.
22) "Cables" made of microtubles that extend from the poles of a cell to the centromeres during
cell division are called spindle fibers.
23) In mitosis, anaphase follows metaphase.
24) Chromosomes coil up into short, fat rods during prophase.
25) The stage of meiosis during which homologues line up along the equator of the cell is called
metaphse I.
26) The process called meiosis guarantees that the number of chromosomes in gametes is half
the number of chromosomes in body cells.
27) The cells resulting from meiosis in either males or females are called gametes.
28) Another name for body cells are somatic cells.
29) Benign means not cancerous.
30) Malignant means cancerous cells.
31) Cancer is uncontrollable cell growth.
32) XXY is Klinefelter syndrome.
33) 2n + 1 is trisomy.
34) XYY is Jacobs syndrome.
35) Cri du chat syndrome people have small heads.
36) Turners syndrome is XO.
37) Poly-X would be females with two or more extra X chromosomes.