week 9 Flashcards

(40 cards)

1
Q

crossing over occus in

A

meiosis

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2
Q

meiosis starts with___ cell and resultes in the formation of ___ cells

A

one diploid….four haploid

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3
Q

The cell cycle results in the production of ____

A

two cells, each with the same amount of genetic material and the same genetic information

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4
Q

During metaphase 1

A

homologous chromosomes line up in the middle of the cell

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5
Q

which of the following is a stage of mitosis

A

telophase

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6
Q

the diploid number of chromosomes in a goldfish is 96. what is the haploid number

A

48

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7
Q

bacteria cells divide be

A

simple cell cycle

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8
Q

during telophase

A

the events of prophase are reverse

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9
Q

if you had skin cells dividing in your body, they would divide by

A

mitosis

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10
Q

which of the following is the best description of the events of anaphase 1?

A

homologous chromosomes randomly separate and migrate to opposite poles

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11
Q

in meiosis, sister chormatids migrate to the opposite poles during

A

anaphase II

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12
Q

cytokinesis typically occurs during the ___ stage of mitosis

A

telophase

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13
Q

which of the following stages of the cell cycle makes up interphase

A

all of the above

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14
Q

which of the following occurs during prophase

A

the mitotic spindle begins to form

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15
Q

chromosomes that do not determine the sex of an individual are called

A

autosomes

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16
Q

DNA replication occurs in the ___ stage of the cell cycle

A

S

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17
Q

In meiosis, homologous chromosomes line up at the equator in a tetrad formation during

18
Q

In mitosis, chromatids move to opposite poles during

19
Q

In meiosis, whole chormosomes move to the opposite poles during

20
Q

The proper sequence of the phases of mitosis, from beginning to end is

A

prophase, metaphase, anaphase, telophase

21
Q

Upon completion of telophase I and cytokinesis, the is (are)___ cell(s)

22
Q

a somatic cell would divde bey

23
Q

one difference between mitosis and meiosis is

A

mitosis produces cell genetically identical to the parent cell, but meiosis does not

24
Q

in prophase

A

chormosomes become visible

25
In meiosis, how does prophase I differ from prophase II
during prophae I there is one diplod cell; during prohpase II ther eare two haploid cells
26
cytokinesis refers specifically to
the division of the cytoplasm
27
Which of these events occurs during anaphase
sister chromatids separate
28
Anaphase II is essentially the same as mitotic anaphase except that in anaphase II ___ and in mitotic anaphase___
the cells are haploid and sister chormatids separatie... the cells are diploid and sister chormatids separate
29
how much genetic material is present in a cell during prophase I compared to a cell that has completed meosis II
four times as much
30
A(n) ___ is an example of an organims that can reproduce asexually
amoeba
31
in mitosis, one-__ cell produces two___ cells
diploid...diploid
32
crossing over during prophase I resultes in
genetic recombination
33
during metaphase
chromosomes line up in the middle of the cell
34
which of the following occurs during interphase
chromosome duplication
35
in mitosis, chromatids move to opposite poles during
anaphase
36
During which stage of meiosis does crossing over occur
prophase I
37
DNA is foudn in stuctures called
chromosomes
38
Chromatin consists of
DNA and protein
39
Genetic variation is accomplished by all but one of the following. Which is it
the events of meiosis II
40
A duplicated chromosome consists of two
sister chromatids