#1 Binary fission differs from the division of eukaryotic cells in that: Binary
ID: 89322 • Letter: #
Question
#1 Binary fission differs from the division of eukaryotic cells in that:
Binary fission results in daughter cells with different genetic makeup
A spindle is involved in chromosome segregation in eukaryotic cells
DNA replication during binary fission involves multiple origins of replication
DNA segregation only occurs in eukaryotic cells
#2 - In mitotic metaphase, a cell with eight sister chromatids has _______ centromere(s).
1
2
4
8
#3- A human cell in G1 of the cell cycle has 23 pairs of chromosomes. The number of daughter chromosomes in a cell in telophase II of meiosis is:
23
46
69
92
#4- Having extra copies of one chromosome in a cell is an example of:
polyploidy
monosomy
Triploid
Aneuploidy
A.Binary fission results in daughter cells with different genetic makeup
B.A spindle is involved in chromosome segregation in eukaryotic cells
C.DNA replication during binary fission involves multiple origins of replication
D.DNA segregation only occurs in eukaryotic cells
Explanation / Answer
Answer1:B :A spindle is involved in chromosome seggregation in eukaryotic cells.
Answer2:C: 4
Answer3:B: 46 -During the changes of mitosis and meiosis the chromatid count never changes only the number of chromosome changes during anaphase when sister chromatids are separated.
Answer4:D: Aneuploidy:Common form of aneuploidy is trisomy it means presence of an extra chromosome in cells.
:Eg -Down's syndrome
People with trisomy has three copies of particular chromosome in cells instead of the normal two copies.
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