It is not just the muscle cells that respire. All cells in the body need oxygen for respiration and all cells need to get rid of the carbon dioxide that they produce. In the lungs oxygen is taken from air into the blood and the blood transports the oxygen to the cells in all tissues of the body.As the muscles use the oxygen up,carbon dioxide is produced and absorbed into the blood. And this de-oxygenated blood is pumped back to the heart then on to the lungs. The lungs get rid of this carbon dioxide, and breathe in more oxygen.
Hope this answered your question.
Answer:
<h2>A) Yes, 12 mu</h2><h2>B) AaWw</h2><h2>C) 0.25%</h2><h2 />
Explanation:
As given,
Allele A for blue anthocynin.
aa for yellow kernel;
at second locus;
W produce smooth kernel,
ww for wrinkled kernel;
Parents as given are: AaWw and aaww
Progeny are:
blue smooth ( AaWw)= 1447;
blue wrinkle (Aaww)= 169;
yellow smooth (aaWw)= 186;
yellow wirnked (aaww)= 1510
a)
Recombinant progeny are 169+ 186= 355
non- recombinant progeny are = 1447+ 1510= 2957
so recombination frequency (RF)= 346/2957×100= 12.0054%
So a and w are linked genes.
They are 12 mu far away from each other.
b) Blue smooth parent= AaWw.
c) Aaww crossed with aaWw
progeny are= AaWw, Aaww, aaWw, aaww,
They all are produced in same proportion =0.25% or 1/4.
Answer:
B
Explanation:
if the reccesive trait is what you want then you cannot have any dominant alleles present
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