Genetics Flashcards by Hannah Woolley | Brainscape

Q

Chromosome

A

Long molecules of DNA

humans have 23 pairs

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Q

Gene

A

A section of DNA that controls the characteristic

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Q

Allele

A

Differing forms of genes

Eye colour

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Q

Dominant

A

Capital letter in the cells phenotype

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Q

Recessive

A

Lower case present in the phenotype

Expressed when only two allele are present

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Q

Homozygous

A

Two of the same allele
BB
bb

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Q

Heterozygous

A

Different alleles for the same gene

Bb

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Q

Genotype

A

Alleles present

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Q

Phenotype

A

Physical appearance of someone from inheritance

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Q

Zygote

A

Fertilised egg cell

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Q

Gamete

A

Sperm and egg cells

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Q

Haploid

A

Half the genetic makeup

Sperm and egg cells

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Q

Diploid

A

All of the genetic makeup

Zygote

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