Describe inherited diseases case study I

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Describe inherited diseases case study I - Starter Quiz

Answer the questions below. When you submit the quiz, you will receive feedback on any incorrect answers.

Mark the symbol that should replace each letter: *

3 points

⚫

⚪

⬜

⬛

This is a pedigree showing an autosomal dominant trait. The affected uncle of III1 and III2 is: *

1 point

II-2

I-1

II-4

II-3

Which one of these statements is FALSE about autosomal dominant inheritance? *

1 point

Equal chance for males and females to inherit trait

A parent must have the trait (phenotype) to pass it on

Can skip a generation

If both parents possess the trait, but it is absent in any of their offspring, then the parents are both heterozygous (“carriers”) of the recessive allele.

Mark the alleles as heterozygous dominant, homozygous recessive, heterozygous and if their owners could be 'carriers' *

7 points

Heterozygous

Homozygous recessive

Homozygous dominant

Carrier

This monohybrid cross shows a ratio of Tall:Short phenotypes of: *

1 point

4:0

3:1

2:2

1:4

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