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BIOL1 > Life Cycles > Flashcards

Life Cycles Flashcards

1
Q

What is a homologous pair?

A

A pair of the same kind of chromosome, have the same genes, BUT different variations of the same gene

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2
Q

Adult animal cells are _____ (ploidy) and the gametes are _______(ploidy).

A

Diploid

Haploid

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3
Q

Animal zygotes are _____ (ploidy) and ____cellular.

A

Diploid

Unicellular

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4
Q

Sporophytes are ______ (ploidy) and ____cellular.

A

Diploid

Multicellular

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5
Q

Sporophytes undergo ______ to become spores.

A

meiosis

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6
Q

Spores are _____ (ploidy) and ___cellular.

A

Haploid

Unicellular

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7
Q

Spores undergo _______ to become gametophytes.

A

Mitosis

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8
Q

Gametophytes are _____ (plodidy) and ___ cellular.

A

Haploid

Multicellular

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9
Q

Gametophytes undergo ______ to becomes gametes.

A

Mitosis

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10
Q

Plant gametes are _____ (ploidy) and ___cellular.

A

Haploid

Unicellular

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11
Q

Plant zygotes are ______ (ploidy) and ____cellular.

A

Diploid

Multicellular

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12
Q

What is the stage of life most fungi and many protists default to?

A

Haploid and multicellular

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13
Q

Haploid multicellular fungi undergo _____ to make gametes.

A

Miosis

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14
Q

Fungi gametes are _____ (ploidy) and ___cellular.

A

Haploid

unicellular

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15
Q

Fungi zygotes are _____ (ploidy) and undergo _______ to become haploid unicellular cells.

A

Diploid

Miosis

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16
Q

Meiosis _____ changes the ploidy level from diploid to haploid.*
Mitosis _____ changes the ploidy level.

A

Always

never

17
Q

What happens in metaphase I?

A

Crossing over

18
Q

What is a tetrad?

A

A pair of homologous chromosomes

19
Q

What is cohesion in meiosis?

A

The sticking together of sister chromatids

20
Q

What is a chiasmata?

A

the point where two homologous non-sister chromatids exchange genetic material during chromosomal crossover during meiosis

21
Q

What two processes in meiosis allow for an increase in genetic diversity?

A

Independent assortment of chromosomes

Crossing over

BIOL1 (14 decks)

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