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0 multiple_choice_question 196343

<p>Which of the following statements is <strong><em>true</em></strong> about tubular fluid that has <em>just</em> reached the distal convoluted tubule (DCT)?</p>

Which of the following statements is true about tubular fluid that has just reached the distal convoluted tubule (DCT)?

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0 multiple_choice_question 196344

<p>Bicarbonate ions act as a:</p>

Bicarbonate ions act as a:

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0 multiple_choice_question 196345

<p>What type of tissue forms the lining of the urinary bladder?</p>

What type of tissue forms the lining of the urinary bladder?

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0 multiple_choice_question 196346

<p><span>In females, when does oogenesis begin?</span></p>

In females, when does oogenesis begin?

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0 multiple_choice_question 196347

<p><span>How many chromosomes does a gamete have?</span></p>

How many chromosomes does a gamete have?

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0 multiple_choice_question 196348

<p><span>Which of the following structures is <strong><em>not</em></strong> a component of the spermatic cord?</span></p>

Which of the following structures is not a component of the spermatic cord?

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0 multiple_choice_question 196349

<p>The primary means of water movement between fluid compartments is:</p>

The primary means of water movement between fluid compartments is:

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0 multiple_choice_question 196350

<p>Which urinary structure carries urine from the kidney to the bladder?</p>

Which urinary structure carries urine from the kidney to the bladder?

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0 multiple_choice_question 196351

<p>Which of the following statements regarding breast cancer (CA) are <strong><em>true</em></strong><em>?</em></p> <ol> <li>Several genes (BRCA1 and BRCA2 for example) that increase the susceptibility to breast cancer have been identified.</li> <li>The occurrence of breast CA decreases rapidly after menopause.</li> <li>Early detection (especially self-examination and mammograms) appears to greatly improve the survival rate.</li> <li>A family history of breast CA, particularly in a first-degree relative (mother or sister), increases the risk of developing the disease.</li> <li>Although rare, breast cancer can occur in males.</li> </ol>

Which of the following statements regarding breast cancer (CA) are true?

Several genes (BRCA1 and BRCA2 for example) that increase the susceptibility to breast cancer have been identified.

The occurrence of breast CA decreases rapidly after menopause.

Early detection (especially self-examination and mammograms) appears to greatly improve the survival rate.

A family history of breast CA, particularly in a first-degree relative (mother or sister), increases the risk of developing the disease.

Although rare, breast cancer can occur in males.

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0 multiple_choice_question 196352

<p>The free carboxyl group (-COOH) of a protein acts like:</p>

The free carboxyl group (-COOH) of a protein acts like:

a) It has a relatively low osmolarity because it has just left the loop of Henle, where ions were reabsorbed, but water was not.

Explanation / Answer

1.a. It has relatively low osmolarity as it has just passed from the ascending loop of Henle where solute are reabsorbed but not water thus making it hypo osmolar.

2.e. Bicarbonate ion is a weak base of it’s corresponding weak acid carbonic acid.

3. E. Transitional epithelium. This is a special type of epithelium which has a unique property of stretching and thus withstanding the pressure of distension.

4.a. Before birth. Oogenesis starts in gestation period and reached maximjm at around 20weeks of gestation after which no new eggs are formed and further maturation occurs at different stages of life.

5. 23- a gamete has half the number of chromoses and as in humans the number of chromosomes are 46 , this ge gamete has 23 chromosomes.

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