Let,
Dominant trait, red color be designated as C'C'
Recessive trait, white color be represented as C"C"
The F₁ generation of the cross :
C'C' X C"C" = C'C"
F₂ generation cross is shown in the image attached.
According to the cross, the probability of pink flower being produces 1s 50%
<span>Which is an example of students breaking a safety rule when dealing with chemicals?
</span>
D. Tying back loose hair
your not supposed to touch any of your body when dealing with chemicals
Answer:
I believe it’s D
Explanation:
It’s non renewable because it doesn’t regenerate
Down syndrome causes a distinct facial appearance, intellectual disability, developmental delays, and may be associated with thyroid or heart disease.
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Striated muscles contain repeating sarcomeres of overlapping arrays of long, thin actin and thicker myosin filaments. Myosin filaments contains the myosin heads, which are enzymes that can bind to actin, split and make use of the energy from ATP. When muscle contraction starts, myosin heads bind to actin, change their configuration on actin, liberating the products of ATP hydrolysis and causing slide of the actin and myosin filaments. The action of the proteins troponin and tropomyosin on the actin filaments regulates vertebrae striated muscle contraction. The release of calcium ions from the sarcoplasmic reticulum is triggered by the nervous stimulation which causes depolarization of muscle membrane. Calcium ions bind to troponin and thus cause or allow the tropomyosin strands on the actin filament to move so that the part of the actin surface where myosin heads need to bind is uncovered. Contraction then occurs and only stops when the sarcoplasmic reticulum pumps calcium out of the muscle interior.
So basically, what triggers the uncovering of the myosin binding site on actin is the calcium ions binding to troponin and changing configuration.
