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Honors Ch. 8 Mitosis & Meiosis Flashcards | StudBud
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Honors Ch. 8 Mitosis & Meiosis
Honors Ch. 8 Mitosis & Meiosis
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Answers
1
The centromere holds ____ together.
Sister Chromatids
The nuclear envelope
DNA
Chromatin
2
If the original cell has 20 chromosomes at the beginning of Meiosis-2, how many will each daughter have?
40
10
5
20
3
What chromosomal abnormality is this
kleinfelters syndrome
turner's syndrome
down syndrome
monosomy x
4
The phase when the nuclear envelope disappears...
Metaphase
Prometaphase
Interphase
Prophase
5
Based on what you know about sex chromosomes, what would determine the sex of a child?
crossing over
the autosome of dad
the sex chromosome of the dad
sex chromosome of the mom
6
Eukaryotic cells spend most of their
cell cycle
in...
Prophase
Anaphase
Interphase
Cytokinesis
7
When two gametes fuse together during sexual reproduction, the new cell created is called a
zygote
homologous set
haploid cell
tetrad
8
The cell theory says ...
Animals must reproduce
All life evolves
All cells come from existing cells
All animals grow and develop
9
What chromosomal abnormality is this
trisomy 21
turners syndrome
down syndrome
trisomy 13
10
Meiotic Division involves _____ cells.
Somatic
Gametes and Somatic
Neither of these
Gametes
11
During meiosis,
telophase-1
results in how many cells?
3
2
5
4
12
Mitotic cells are
Haploid
Tetrads
Diploid
Polyhaploid
13
Which of the following is the correct sequence of genetic information?
DNA --> histones --> chromosomes --> genes --> chromatin
DNA --> chromatin --> chromosome --> gene
histone proteins --> DNA --> chromosomes --> gene --> chromatin
Gene -- > DNA strand --> histone proteins --> chromatin --> chromosome
14
Which human cells are non-dividing?
All somatic cells
Bone cells
Gametes
Nerve and muscle cells
15
During meiosis,
telophase-2
results in how many diploid cells?
6
2
0
4
16
When cancerous cells spread throughout the body, it's called...
Angiogenesis
A tumor
Mitotic division
Metastasis
17
If the skin cell of a salamander has 22 chromosomes, how many chromosomes would a salamander egg cell have?
44
11
2
22
18
The site where spindles attach to sister chromatids during cell division is
Centromere
Chromatid
Kinetochore
Telomere
19
Eukaryotic cells spend most of their
division
time in
metaphase
prophase
interphase
anaphase
20
What is the correct order of a somatic cell's life cycle?
G2 - S - G1 - P - M - A - T - C
G1 - S - G2 - C - T - A - M - P
G1 - S - I - P - M - A - C - T
G1 - S - G2 - P - M - A - T - C
21
When a cell can not control its cell cycle,
It results in cancer
The cell goes through mitosis twice
Extra spindles are formed
The cell will die
22
Plant cells deposit carbohydrates along this line of 2 newly formed cells during cytokinesis
Metaphase plate
Cell Plate
Mesophyll layer
Cell membrane
23
How many copies of each chromosome do gametes have?
1
4
2
0
24
A tumor in which the cells are
NOT
cancerous?
Carcinogenic
Benign
Mutant
Malignant
25
At the end of meiosis 1, cells are already haploid.
True
False
26
What percent of cells are incorrect when nondisjunction happens in meiosis 1?
0%
25%
50%
100%
27
In which phase do microtubule fibers start to shorten and pull the chromatids?
Prophase
Telophase
Anaphase
Metaphase
28
A person with Turner Syndrome has...
A missing chromosome
Triple X cells
An extra chromosome
Duplicates of all chromosomes
29
"Chiasmata" are the locations on homologous chromosomes where what happens?
crossing over
chromatid rearranging
DNA mutations
meiosis
30
Which of these creates more genetic variation in an offspring and its generations?
Meiosis
All of these
Binary Fission
Mitosis
31
If a cell with 40 chromosomes goes through mitosis twice, how many chromosomes do the daughter cells have at the end?
40
15
10
20
32
What percent of its time does a cell spend in interphase?
60%
50%
90%
10%
33
When does most of cell growth happen?
Prophase 1
Gap 1
Gap 2
S phase
34
You're looking at a karyotype and see "XY" at the end... what does that mean?
The person is a female
The person has Turners syndrome
The person has a genetic disorder
The person is a male
35
The nucleolus disappears, and spindle microtubules are fully made in...
Prophase
Interphase
Metaphase
Prometaphase
36
Homologous chromosomes are separated during meiosis 2
True
False
37
If 2n=30 , what is the haploid number?
60
90
15
30
