Suggest a reason why a typical punnett square prediction for a heterozygous cross might be accurate in this case.

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
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 Suggest a reason why a typical punnett square prediction for a heterozygous cross might be accurate in this case.

art 4: Lethal Alleles
ristapedia is a lethal allele that is also dominant. Individuals with this trait must be
eterozygous (Aa) because the homozygous condition (AA) is lethal. This is not a
ex-linked trait. Wild-type flies do not carry the allele for aristopedia (aa).
4. Predict the outcome of a cross between a
wild-type fly and one with aristapedia.
Half of the population of this cross will have
aristapedia and half will be wild type. There would be
a 1:1 ratio.
A Aa
a
aa
a
Aa
aa
Aristapedia
Wild-type
Transcribed Image Text:art 4: Lethal Alleles ristapedia is a lethal allele that is also dominant. Individuals with this trait must be eterozygous (Aa) because the homozygous condition (AA) is lethal. This is not a ex-linked trait. Wild-type flies do not carry the allele for aristopedia (aa). 4. Predict the outcome of a cross between a wild-type fly and one with aristapedia. Half of the population of this cross will have aristapedia and half will be wild type. There would be a 1:1 ratio. A Aa a aa a Aa aa Aristapedia Wild-type
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