meiosis Flashcards

1
Q

Describe both asexual and sexual reproduction

provide examples

A
  • asexual: The parent organism replicates its genetic material and divides, producing offspring that are clones/identical of itself. There is no fusion of gametes (ex: starfish, hydra)
  • sexual: Sexual reproduction involves two parents, and offspring are produced by the combination of their genetic material through the fusion of gametes (providing a different combination of genes) (ex: animals, plants, fungi)
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2
Q

Example of diploid cells

A

blood, skin, lung cells

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3
Q

Example of haploid cells

A

egg, sperm, pollen

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4
Q

How does the life cycle occur?

A

meiosis -> fertilization -> mitosis

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5
Q

How many times does meiosis divide

A

2

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6
Q

2n

add more details

A

2x the number of chromosomes in a diploid cell

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7
Q

n

A

represents the haploid number of chromosomes

(number of chromosomes in a haploid cell)

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8
Q

How many chromosomes does a zygote have?

A

46

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9
Q

Organisms that reproduce sexually have special somatic cells known as __?

A

primary sex cells

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10
Q

the diploid number in humans is

A

46 or 2n

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11
Q

the haploid number in humans is

A

23 or n

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12
Q

What is a germ cell

A

Specialized somatic cells that will produce gametes

a cell that undergoes meiosis to produce gametes

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13
Q

Stem cells

A

Cells with no particular function that will develop a function (ex: embryonic stem cells)

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14
Q

Zygote

what does it get? what is it? 2n or n?

A

a fertilized egg = 2n (half of chromosomes from math, half from dad)

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