The "gray matter of the brain is largely made up of which of the following?

A. Neuron cell bodies

B. Meninges

C. Neuron cell axons

D. Corpus callosum

Answer Explanation:

The gray matter of the brain primarily consists of neuron cell bodies, along with dendrites, glial cells, and unmyelinated axons. It appears gray because it lacks the white fatty myelin sheath that covers many nerve fibers.

Therefore, the Correct Answer is A.

Q #1: Which of the following cells transfers pigment granules to adjacent epidermal cells?

A. Melanocytes

B. Merkel cells

C. Langerhans cells

D. Keratinocytes

Answer Explanation

Melanocytes are specialized skin cells that produce melanin, which is the protective skin-darkening pigment. They are found mainly in the epidermis, though they occur elsewhere, such as in the hair.
Q #2: Which of the following types of cells stimulates other immune cells to attack and destroy foreign agents?

A. Cytotoxic T-cells

B. Plasma cells

C. Natural killer cells

D. Helper T-Cells

Answer Explanation

Helper T cells are important cells that stimulate the action of other immune cells. For instance, they not only help activate B cells to secrete antibodies and macrophages to destroy ingested microbes, but they also help activate cytotoxic T cells to kill infected target cells.
Q #3: A strand of DNA bases reads 5' AGCTAGCGT 3, what would the sequence of bases on the contemporary strand read?

A. 3' STOGUTCGCU

B. 5' AGCTAGCGT S

C. 3' SUCGAUCICA

D. 3' TCGATCGCA 5'

Answer Explanation

The complementary strand of DNA is formed by pairing complementary bases. In DNA, adenine (A) pairs with thymine (T), and guanine (G) pairs with cytosine (C). Additionally, RNA uses uracil (U) instead of thymine.

Given the sequence 5' AGCTAGCGT 3', the complementary strand would read:

3' TCGATCGCA 5'

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The "gray matter of the brain is largely made up of which of the following?

More Questions on TEAS 7 Science

Q #1: Which of the following cells transfers pigment granules to adjacent epidermal cells?

Answer Explanation

Q #2: Which of the following types of cells stimulates other immune cells to attack and destroy foreign agents?

Answer Explanation

Q #3: A strand of DNA bases reads 5' AGCTAGCGT 3, what would the sequence of bases on the contemporary strand read?

Answer Explanation

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The &quot;gray matter of the brain is largely made up of which of the following?

More Questions on TEAS 7 Science

Q #1: Which of the following cells transfers pigment granules to adjacent epidermal cells?

Answer Explanation

Q #2: Which of the following types of cells stimulates other immune cells to attack and destroy foreign agents?

Answer Explanation

Q #3: A strand of DNA bases reads 5&#39; AGCTAGCGT 3, what would the sequence of bases on the contemporary strand read?

Answer Explanation

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TEAS 7 Exams (Q&A)

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The "gray matter of the brain is largely made up of which of the following?

Q #3: A strand of DNA bases reads 5' AGCTAGCGT 3, what would the sequence of bases on the contemporary strand read?