<span>Roan is a combination of white hairs with red hairs. When we see cattle like this, they look pink because it resulted from a mix of white and red.
Red allele: A
White allele: a
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<span>A heterozygotic animal has this genotype: Aa
Like i said previously this is the mixture of colors so the animal would be pink.
A red coat color has this genotype: AA
A white coat color has this genotype: aa
To get all the herd to be</span><span> roan-colored cattle the combination of parents should be: AA x aa. -> 100% roan
Another possible way to obtain would be</span><span>roan-colored cattle: Aa x Aa or aa x Aa (in this case there would be less probabable to obtain road).</span>
Gonna need a bit more information then that if you want an answer.
Answer:
Adrenergic/effector/sympathetic
Explanation:
The two main divisions of autonomic nervous system are sympathetic nervous system and para sympathetic nervous system. This nervous system controls the involuntary actions of the body.
Adrenergic receptors are included in the G protein coupled receptors. Alpha and beat receptors are adrenergic receptors. These receptors are present on the effector molecule. Alpha and beta receptors are important during fight and flight response and are included in the sympathetic nervous system.
Thus, the correct answer is option (e).
