B1H Part 1 Variation And Inheritance Flashcards by Issy Pughe | Brainscape

Q

Fertilisation

A

When the nuclei of a sperm and egg cell fuse

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Q

Genes

A

Sections of dna

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Q

Inherited disorders

A

Genetic diseases

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Q

Mutations

A

Changes to the Dna base sequence

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Q

Sex chromosomes

A

XX female

XY male

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Q

Gametes have …. Chromosomes

A

Half the amount of chromosomes as body cells do

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Q

Gender

A

Determined by sex chromosomes

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Q

Chromosomes found

A

Nuclei of cells

Long strands of genetic info

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Q

Chromosome

A

Tightly coiled strands of dna

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