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TLS Online TPP Program

#Question id: 11673

Low selectivity of solute movement is a characteristic of ________.

#Unit 7. System Physiology – Animal
  1. H^+ pumping to control pH
  2. reabsorption mechanisms along the proximal tubule
  3. filtration from the glomerular capillaries

  4. secretion along the distal tubule

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TLS Online TPP Program

#Question id: 2784

#Unit 2. Cellular Organization

Which of the following terms describes the phenomenon of genes occurring in the same order on a chromosome in two different species?
TLS Online TPP Program

#Question id: 26432

#Unit 3. Fundamental Processes

If the mismatch is near 3’ then which of the following will degrade strands of DNA in the 5’ → 3’ direction only
TLS Online TPP Program

#Question id: 639

#Unit 1. Molecules and their Interaction Relevant to Biology

Match the coenzymes in column I enzymes to class of enzymes in column II

A. Phosphofructokinase

1. Redox reaction

B. Enolase

2. Phosphoryl shift

C. Phosphoglycerate mutase

3. Dehydration

D. Glyceraldehyde 3 Phosphate dehydrogenase

4. Phosphoryl transfer

TLS Online TPP Program

#Question id: 2973

#Unit 2. Cellular Organization

Following statements are regarding to the spindle position checkpoint pathway in budding yeast.

A. During interphase and early mitosis, Cdc14 is sequestered and inactivated in the nucleolus. Inactive Tem1-GDP associates with the spindle pole body (SPB) nearest to the bud as soon as the mitotic spindle forms.

B. If chromosome segregation occurs properly, extension of the spindle microtubules inserts the daughter SPB into the bud, causing Tem1 to be activated by an unknown mechanism.

C. Tem1-GDP activates a protein kinase cascade, which then promotes the release of active Cdc14 from the nucleolus and exit from mitosis.

D. If the spindle apparatus fails to place the daughter SPB in the bud, Kin4 (cyan), an inhibitor of Tem1, is recruited from the parent cell cortex to the parent-cell-located SPB and maintains Tem1 in the GTP-bound form, and mitotic exit does not occur.

Which of the following are correct?
TLS Online TPP Program

#Question id: 14904

#Unit 6. System Physiology – Plant

Cell walls commonly are classified into two major types. This classification is based not on structural or biochemical differences;
A) primary walls and
B) secondary walls
i) walls formed during cell growth
ii) walls that are formed after cell enlargement stops
iii) multilayered walls that are strengthened and waterproofed by lignin
iv) Usually they are thin and simple, but sometimes may be thick and multilayered, such as those found in collenchyma or in the epidermis
v) highly specialized in structure and composition, reflecting the differentiated state of the cell
Which of the following correctly represents features of primary and secondary walls?