Paper 2 - sexual and asexual reproduction

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13 Terms

1

Asexual reproduction involves:

only one parent

no fusion of gametes

production of genetically identical offspring

mitosis

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2

how do fungi reproduce asexually

by spores

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3

when do malarial protists reproduce asexually

when they are in the human host

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4

how do strawberries reproduce asexually

send out long shoots called runners which touch the ground and grow a new plant

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5

how do daffodils reproduce asexually

produce lots of smaller bulbs which can grow into new plants

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6

how do gardeners use asexual reproduction

to produce large numbers of identical plants

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7

what happens when a cell divides by meiosis

copies of genetic information are made

the cell divides twice to form four gametes, each with a single set of chromosomes

all gametes are genetically different from each other

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8

what are the advantages of sexual reproduction

produces variation in the offspring

if the environment changes any variation means that at least some organisms will be suited and can survive

it allows humans to selectively breed plants and animals and increase food production

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9

what are the advantages of asexual reproduction

only one parent is needed

it is more time and energy efficient as the organism does not need to find a mate

faster than sexual reproduction

offspring is genetically identical

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10

why is asexual reproduction more time and energy efficient

organism does not need to find a mate

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11

when do mosquito parasites reproduce sexually

in the mosquito

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12

what is a gamete

a specialised sex cell formed by meiosis with half the number of chromosomes

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13

what is a haploid

a cell that contains a single set of chromosomes

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