During a contraction, which areas of the sarcomere are most likely to either disappear or decrease?

a. H zone
b. I band
c. A band
d. Z disk


Answer:
a. H zone
b. I band

Anatomy & Physiology

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In X-linked inheritance, the gene for albinism is located on an X chromosome. If the father is normal and mother is a normal carrier, the chance (percentage) for the child to be an albino child (phenotype) is:

a. 0% b. 25% c. 50% d. 75% e. 100%

Anatomy & Physiology

Osteons run perpendicular to the diaphysis of a long bone.

Answer the following statement true (T) or false (F)

Anatomy & Physiology

Only autosomal trisomies involving chromosomes 13, 18, and 21 are survivable. Why is this?

A. These are relatively short chromosomes. B. These are relatively long chromosomes. C. These are relatively gene-poor chromosomes. D. These are redundant chromosomes. E. These chromosomes have no genes.

Anatomy & Physiology

Which nitrogenous base is unique to RNA molecules?

A) uracil B) cytosine C) adenine D) guanine E) thymine

Anatomy & Physiology