Inheritance Part 1 OALH - David Spratt | Biblioteka

Do Now

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1.How do strawberries reproduce asexually?

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2.State an advantage of sexual reproduction

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3.Define gene

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4.Define accuracy

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5.Write 3.214 to 3 significant figures

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State the two things that happen during the second stage of mitosis

Class questions from taught part of the lesson

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PP

Homozygous

Heterozygous

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Pp

Homozygous

Heterozygous

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Yy

Homozygous

Heterozygous

1

yy

Homozygous

Heterozygous

1

DD

Homozygous

Heterozygous

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Dd

Homozygous

Heterozygous

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D

Dominant

Recessive

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A

Dominant

Recessive

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A

Dominant

Recessive

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B

Dominant

Recessive

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t

Dominant

Recessive

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TT

Homozygous dominant

Homozygous recessive

Heterozygous

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Tt

Homozygous dominant

Homozygous recessive

Heterozygous

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tt

Homozygous dominant

Homozygous recessive

Heterozygous

1

RR

Homozygous dominant

Homozygous recessive

Heterozygous

1

zz

Homozygous dominant

Homozygous recessive

Heterozygous

1

Zz

Homozygous dominant

Homozygous recessive

Heterozygous

1

RR

Homozygous dominant

Homozygous recessive

Heterozygous

1

Uu

Homozygous dominant

Homozygous recessive

Heterozygous

1

ee

Homozygous dominant

Homozygous recessive

Heterozygous

1

Ll

Homozygous dominant

Homozygous recessive

Heterozygous

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qq

Homozygous dominant

Homozygous recessive

Heterozygous

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1.A human will be red-green colour blind if its genotype is bb

Dominant Condition

Recessive Condition

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2.A human will have cystic fibrosis if its genotype is ff

Dominant Condition

Recessive Condition

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3.A human will have polydactyly if its genotype is DD or Dd

Dominant Condition

Recessive Condition

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4.A human will have haemophilia if its genotype is hh

Dominant Condition

Recessive Condition

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5.A pea plant will be yellow if genotype is YY or Yy

Dominant Condition

Recessive Condition

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6.A pea plant will have smooth peas if its genotype is SS or Ss

Dominant Condition

Recessive Condition

Key Knowledge

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What is a gene?

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What is an allele ?

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What does dominant mean?

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What does recessive mean?

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What does homozygous mean?

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What does heteroygous mean?

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What does genotype mean?

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What does phenotype mean?

Recall quiz

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Which is the correct definition of phenotype?

1.The characteristics that you have as a result of your alleles e.g. brown eyes

2.The characteristics that you have as a result of your chromosomes e.g. brown eyes

3.The pair of alleles found in your chromosomes e.g. Bb

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Which is the correct definition of genotype?

1.The characteristics that you have as a result of your alleles e.g. brown eyes

2.The pair of alleles found in your chromosomes e.g. Bb

3.The pair of genes found in your chromosomes e.g. Bb

4.The pair of alleles found in your chromosomes e.g. Bp

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Which shows a homozygous recessive genotype?

1.Bb

2.YY

3.ee

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Which of these is true about the genotype BB?

1.Homozygous recessive

2.Heterozygous recessive

3.Homozygous dominant

4Heterozygous dominant

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Which is the best definition of allele?

1.A different version of the same gene

2.A different version of a chromosome

3.A different version of a characteristic

4.A different version of DNA