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Biology Paper 1 > Cell Division 1 > Flashcards

Cell Division 1 Flashcards

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1
Q

What is a gamete?

A

Sex cells (sperm, ova, pollen)

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2
Q

What’s a haploid?

A

Haploid cells contain only one set of Chromosomes

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3
Q

What is a diploid?

A

Diploid, as the name indicates, contains two sets of chromosomes

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4
Q

What is a gene?

A

A section of a chromosome made from DNA that carries the code to make a protein

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5
Q

What is an allele?

A

Two versions of the same gene

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6
Q

What is the first step of mitosis?

A

Chromosomes make copies it themselves and nucleus disappears

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7
Q

What is the second stage of mitosis?

A

Copied chromosomes line up

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8
Q

What is the third stage of mitosis

A

Original and copied chromosomes move to opposite ends of the cell

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9
Q

What is the fourth stage of mitosis?

A

Cell divides

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10
Q

What are daughter cells?

A

The cells produced during mitosis

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11
Q

What is a chromatid?

A

A copy of a chromosome during cell division

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12
Q

What is cytokinesis?

A

The final part of the cell cycle, in which a cell splits into two

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13
Q

What is interphase?

A

Ten active life of a cell during which the cell prepares for mitosis

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14
Q

What is a stem cell?

A

An undifferentiated cell that can develop into one or more types of specialised cell

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15
Q

What does differentiate mean?

A

To specialise for a particular function

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16
Q

What is a meristem?

A

An area of a plant in which rapid cell division occurs, normally in the tips of roots and shoots

17
Q

What is a hormone?

A

A chemical that moves around an organism to change the function of target cells, tissues or organs

18
Q

What is a clone?

A

An organism (produced asexually) that has identical genes to its parents

19
Q

Genetic variation

A

Inherited differences in organisms

20
Q

What is environmental variation?

A

Differences in organisms as a result of the environment in which they live

Biology Paper 1 (17 decks)

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