Problem: When a horned male sheep was crossed with hornless female sheep, what
will be the ratios for horned/ hornless males and horned /hornless females?
Remember that : males contained horns and females were without horns.
Supply the answers below:
Parents Horned Male Sheep X Hornless Female Sheep
Genotype H+ H+ H - H –
Gametes
F1 generation
Gametes
F2 generation
F2 males
F2 females
will be the ratios for horned/ hornless males and horned /hornless females?
Remember that : males contained horns and females were without horns.
Supply the answers below:
Parents Horned Male Sheep X Hornless Female Sheep
Genotype H+ H+ H - H –
Gametes
F1 generation
Gametes
F2 generation
F2 males
F2 females
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Answer:
In males, horned gene 'H+' is dominant over hornless gene 'H-'. When horned male sheep was crossed with hornless female sheep, F, males contained horns and females were without horns. When F, horned male was crossed with hornless female, in F₂ horned and horn males ratio is 3:1, where as horned and hornless femlae ratio is 1:3 Horns in sheep is a sex influenced trait.
Explanation:
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