B13.1 Types of reproduction Flashcards

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1
Q

What are the different types of reproduction?

A

Asexual reproduciton

Sexual reproduction

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2
Q

How many parents do asexual reproduction need?

A

Only one parent

The cells divide by mitosis

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3
Q

Why is there no variation in the offspring of asexual reproduction?

A

Cells divide by mitosis - no joining of special sex cells (gametes) so there is no mixture of genetic information
Therefore no variation

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4
Q

What does asexual reproduction give rise to?

A

Genetically identical offspring known as clones

Only mitosis is involved in asexual reproduction

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5
Q

What is the purpose of asexual reproduction?

A

For growth and to replace worn-out tissues

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6
Q

What are some examples of organisms that undergo asexual reproduction?

A

Strawberries
Brambles
Daffodils

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7
Q

What does sexual reproduction involve?

A

A male sex cell and a female sex cell from 2 parents

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8
Q

What is the name of the item that is formed when 2 special sex cells fuse together?

A

A zygote

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9
Q

How are gametes formed?

A

Meiosis - chromosome number of the original cell is halved

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10
Q

What will the offspring in sexual reproduction have?

A

Genetic information for both parents - won’t be identical to the parents
Introduces variation

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11
Q

What are the gametes in plants?

A

Egg cells and pollen

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12
Q

What are the gametes in animals?

A

Egg cells and sperm

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