TOPIC 4: INHERITANCE Flashcards

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1
Q

Where is the site of DNA in plants and animals?

A

nucleus

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2
Q

What is a gene?

A

small section of DNA that codes for a particular characteristic

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3
Q

What is an allele?

A

a version of a gene

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4
Q

Characteristic of a dominant allele

A

it will always be expressed (BB or Bb)

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5
Q

Characteristic of a recessive allele

A

it will never be expressed in the presence of a dominant allele HOWEVER it is always expressed when homozygous (bb – always but Bb – never)

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6
Q

Homozygous vs Heterozygous

A

homozygous: same allele
heterozygous: different allele

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7
Q

Phenotype vs Genotype

A

phenotype: physical characteristic
genotype: refers the DNA sequence

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