If a Type-A Person Contains Anti-M in Their Serum, What

question 23

Multiple Choice

If a type-A person contains anti-M in their serum, what might their reverse grouping type as?

• A) A
• B) B
• C) AB
• D) O

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Definitions:

Sarcomere

The basic unit of a muscle's cross-striated myofibril and the site of muscle contraction.

Myofilaments

The filaments of myofibrils, constructed from proteins, primarily actin, and myosin, which are essential for muscle contraction.

I Bands

I Bands are the light-appearing regions of a sarcomere in muscle fibers, reflecting areas where thin filaments do not overlap with thick filaments.

Z Lines

The boundaries in a striated muscle fiber that separate one sarcomere from the next, crucial for muscle contraction.