Miosis Quiz Flashcards

1
Q

two chromosomes that make up a pair in a diploid cell; they possess genes for the same characteristics at the same loci

A

homologus chromosomes

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2
Q

a thread-like gene-carrying structure found in the nucleaus + most visible during mitosis and meiosis

A

chromosome

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3
Q

double-stranded helical nucleic acid molecule ; capable of replicating, is an organism’s genetic material

A

DNA

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4
Q

one of the two identical parts of a duplicated chromosome in a eukaryotic cell

A

sister chromatid

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5
Q

a cell containing a single set of chromosomes

A

haploid

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6
Q

a cell containg two homologous sets of chromosomes, one set from each parent

A

diploid

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7
Q

the complex of DNA + proteins that constitutes eukaryotic chromosomes; uncoiled DNA

A

chromatin

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8
Q

the division of a single nucleus into two genetically identical daughter nuclei

A

mitosis

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9
Q

in a sexually reproducing organism, the division of a single diploid nucleus into four haploid daughter nuclei

A

meiosis

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9
Q

in a sexually reproducing organism, the division of a single diploid nucleus into four haploid daughter nuclei

A

meiosis

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10
Q

in a sexually reproducing organism, the division of a single diploid nucleus into four haploid daughter nuclei

A

meiosis

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11
Q

a chromosome not directly involved in determining the sex of an organism; in mammals any chromosome other than x or y

A

autosome

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12
Q

chromosome that determines whether an individual is male or female

A

sex chromosome

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13
Q

the creation of offspring by a single parent, without participation of sperm and egg

A

asexual reproduction

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14
Q

creation of offspring by the fusion of two haploid sex cells (gametes), forming a diploid zygote

A

sexual reproduction

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15
Q

display of micrographs of the metaphase chromosomes of a cell, arranged by size and centromere position

A

karotype

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16
Q

a discrete unit of hereditary information consisting of a specifc nucleotide sequence in DNA

A

gene

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17
Q

a sex cell, a haploid egg or sperm, the union of two gametes of opposite sex (fertilization) produces a zygote

A

gamete

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18
Q

any cell in a multicellular organism except a sperm or egg cell or a cell that develops into a sperm or egg

A

somatic cell

19
Q

type of cell that has a membrane-enclosed nucleus and other membrane-enclosed organelles

A

eukaryotic cell

20
Q

cell type lacking membrane-enclosed nucleus and other membrane - enclosed organelles

A

prokaryotic cell

21
Q

formation of ova (egg)

22
Q

formation of sperm

A

spematogenesis

23
Q

union of the nucleus of a sperm cell with the nucleus of an egg cell, producing a zygote

A

fertilization

24
the fertilized egg, which is diploid, that results from the union of a sperm cell nucleus and an egg nucleus
zygote
25
what chromosome pair number (s) refer to the sex chromosomes?
pair 23
26
the male sex chromosomes are ...
XY
27
what are the chromosome pair number(s) refer to the autosome chromosomes?
pairs 1-22
28
how many homologus chromosomes are in a normal human gamete?
23
29
How many total chromosomes are in a normal human somatic cell?
23
30
during what phase do homologus chromosomes line up and exchange allelles?
prophase I
31
during what phase are sister chromatids seperated?
anaphase II
32
during what phase are haploid cells first formed?
telophase I
33
sperm and egg cells are examples of...
gametes
34
what is the name of the process where homologus chromosome pairs line up and exchange alleles?
crossing-over
35
what is the process where homologus chromosome pairs can line up in different orders?
independent assortment
36
during what phase of meiosis does independent assortment occur?
metaphase I
37
gametes are...
haploid
38
independent assortment means...
homologus pairs of chromosomes can line up on either side
39
after chromosome is replicated, each half is ferred to as a ...
chromatid
40
if an organism's somatic cell contains 20 total chromosomes, how many chromosomes are in a gamete?
10
41
the combination of sperm and egg is called...
fertilization
42
of chromosomes in human zygote
46
43
in females, how many cells turn into viable egg?
1
44
in males, how many sperm cells turn into viable sperm
4
45
mitosis starts with 1 diploid cell and ends with...
2 diploid cells
46
meiosis starts with 1 diploid cell and ends with...
4 haploid