Characteristics of the mature sperm include the ________.

A) presence of two X chromosomes in approximately half the sperm
B) presence of Y chromosomes in approximately half the sperm
C) absence of an acrosome
D) absence of coiled mitochondria


B) presence of Y chromosomes in approximately half the sperm

Anatomy & Physiology

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Which of the following fatty acid chains has the most double bonds?

A) polyunsaturated fatty acid B) saturated fatty acid C) glycerol D) monounsaturated fatty acid

Anatomy & Physiology

Which of the following is NOT a B cell problem in aging?

A. Clones fail to form. B. Antibodies attack self cells. C. Antibodies do not function well. D. Incidence of cancer increases.

Anatomy & Physiology

A. Mesencephalon B. Cerebral cortex C. Pons D. Lateral horns of the S1 spinal cord segment E. Lateral horns of the T1 spinal cord segment

A. III B. V C. VII D. IX E. X

Anatomy & Physiology

The structures in the nucleus that serve as a "mitotic clock" are

A. hormones.
B. ribosomes.
C. telomeres.
D. kinases.

Anatomy & Physiology