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Science Grade 7 > Cell Division Vocabulary Mr Rhea > Flashcards

Cell Division Vocabulary Mr Rhea Flashcards

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Biology 101 flashcards
1
Q

chromosome

A

a rod of condensed chromatin

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2
Q

locus

A

Latin word meaning “place”

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3
Q

gene

A

a locus on a chromosome that controls the inheritance of a specific trait

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4
Q

body cell

A

a cell with the correct number of chromosomes for the species

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5
Q

cell division

A

a single cell divides, forming two cells

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6
Q

sexual reproduction

A

the production of a new, unique cell from parts of two previously existing cells

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7
Q

gamete

A

a sex cell

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8
Q

egg

A

female gamete that has half the number of chromosomes as a normal body cell

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9
Q

sperm

A

male gamete that has half the number of chromosomes as a normal body cell

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10
Q

fertilization

A

the joining of egg and sperm or egg and pollen

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11
Q

zygote

A

a fertilized egg – the product of sexual reproduction the original cell of a new life

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12
Q

meiosis

A

cell division that takes place in the sex organs that produces gametes or cells with half the number of chromosomes as a body cell

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13
Q

cell cycle

A

the regular sequence of growth, work, and division in cells

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14
Q

asexual reproduction

A

the production of two new, identical

cells from a single, previously existing cell

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15
Q

replication

A

to make a copy of itself

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16
Q

mitosis

A

the division of a nucleus into two identical nuclei

17
Q

parent cell

A

a body cell before it begins cell division

18
Q

daughter cells

A

the two new, identical cells that result from

cell division

19
Q

centriole

A

two organelles found in animal cells that direct the spindle fibers which pull apart the chromosomes

20
Q

spindle fibers

A

threads that attach to the double stranded

chromosomes and then pull them apart

21
Q

centromere

A

holds the double stranded chromosome together

Science Grade 7 (4 decks)

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