The surgical procedure that uses a blood vessel from another part of the body to channel blood around an occluded coronary artery is the coronary Artery Bypass Graft. This is a procedure that restores blood flow to the heart muscle by diverting the flow of blood around a section of a blocked artery in the heart. Specialists use this procedure to treat people who have severe coronary heart disease, a disease in which a waxy substance called plaque builds up inside the coronary arteries.
Answer:
The cornea is the only part of a human body that has no blood supply; it gets oxygen directly through the air.
Explanation:
Answer:
D. Sterility Locus
Explanation:
Angiosperms have several mechanisms to prevent self-pollination due to the advantage of cross-pollination. One of such mechanisms is self-incompatibility genes present on the sterility locus.
These genes determine the germination of the pollen on the stigma. If both the pollen and stigma carry the same allele of the gene present at the sterility locus, the germination of pollen is prevented.
The sterility locus has multiple alleles and the presence of the same alleles at the same locus in both pollen and stigma prevents the pollen germination.
For example, pollen from S1S2 individuals can not germinate on the stigma with the S1S3 genotype. Here, the pollen does not obtain water as required for germination from the stigma and are unable to germinate.
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Stores sugar maybe or builds proteins