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TLS Online TPP Program

#Question id: 20289

Which of the following is INCORRECT about insulinoma?

#Unit 7. System Physiology – Animal
  1. It is much rarer than diabetes excessive insulin production occasionally occurs from an adenoma of an islet of Langerhans.
  2. About 10 to 15 percent of these adenomas are malignant, and occasionally metastases from the islets of Langerhans spread throughout the body.
  3. Indeed, more than 1000 grams of glucose have had to be administered every 24 hours to prevent hypoglycemia in some of these patients.
  4. The pancreatic beta cells become “exhausted” or damaged and are unable to produce enough insulin to prevent more severe hyperglycemia.
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TLS Online TPP Program

#Question id: 24458

#Unit 7. System Physiology – Animal

Which of the following is not correctly paired?
TLS Online TPP Program

#Question id: 17809

#Unit 8. Inheritance Biology

In humans, albinism (unpigmented skin, hair, and eyes) is due to an enzymatic deficiency, and it is an autosomal recessive trait. Suppose that in a small country of one million people (“Generation 1”), there are 500 aa albinos and 9000 Aa heterozygous carriers. What is the probability that a child will be albino if: Both parents are members of Generation 2, and one parent is albino and the other is non-albino.
TLS Online TPP Program

#Question id: 15523

#Unit 4. Cell Communication and Cell Signaling

The appearance of ϒδ thymocytes and αβ thymocytes during mouse fetal development. Fetal animals generate
a) more αβ T-cells than ϒδ T-cells
b) the proportion of ϒδ T-cells generated drops off dramatically after birth
c) the proportion of αβ T-cells generated drops off dramatically after birth
d) more ϒδ T-cells than αβ T cells
TLS Online TPP Program

#Question id: 1662

#Unit 4. Cell Communication and Cell Signaling

What is the approximate number of D segment genes in the immunoglobulin heavy chain gene locus?
TLS Online TPP Program

#Question id: 2771

#Unit 2. Cellular Organization

For SINES (short interspersed elements), which of the following is correct

a. are approximately 300 base pairs long

b.  are LTRs containing retrotransposons.

c. are present in over 1 million copies in the human genome.