Genes determine the traits of organisms
I believe the answer is B
Student 1 Smooth Cardiac Skeletal Skeletal
Explanation:
Skeletal muscles are voluntary muscles which contract fast through the strong forces in between its fibers to facilitate the movements of hands, legs, and other bones in the body. The cross striations are due to actin and myosin arranged along the axis of the cell.
Cardiac muscles are involuntary muscles in the heart walls. The contractions are slow with the force being spread along its branched structure so as to facilitate controlled pumping of blood from the heart. Cardiac muscles are partially striated and are branched since actin and myosin are arranged on the cell axis.
Smooth muscles are are involuntary muscles found lining the blood vessels, viscera, skin etc. They aid in visceral content movements, changes the tone of blood vessels, airways according to their diameter. There are no striations because actin and myosin are arranged randomly. Their contractions are very slow due to weak forces.
If the base-pairing in DNA becomes non-complementary such that purine bases can pair with one another and pyrimidine bases can pair with one another, the 1:1 ratio of purine to pyrimidine bases in DNA will no longer hold.
Due to the complementary base-pairing rule, the ratio of purine to pyrimidine bases in DNAs is usually 1:1. This is because Adenine always pairs with Thymine while Guanine always pairs with Cytosine.
Once this base-pairing rule is removed and becomes purine-purine and pyrimidine-pyrimidine pairings, then it becomes unnecessary for the ratio of purine to pyrimidine bases to be 1:1.
More on Chargaff's rule can be found here: brainly.com/question/19156457
B. because organisms will adapt because of their environment so the adaption fit it.
