TLS Online TPP Program

#Question id: 7286


Which of the floral whorls is affected in apetala 3/pistillata (ap3/pi) mutants?

#Unit 5. Developmental Biology
  1. Sepals and petals
  2. Petals and stamens
  3. Stamens and carpels
  4. Sepals and stamens
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TLS Online TPP Program

#Question id: 565

#Unit 1. Molecules and their Interaction Relevant to Biology

A transition-state analog:

TLS Online TPP Program

#Question id: 7266

#Unit 5. Developmental Biology

After brief examination of the evolution of the tetrapod limb, from fish fins to human hands, has hopefully illuminated the importance of Hox gene regulation during limb development. Hox genes are critical for:

TLS Online TPP Program

#Question id: 7167

#Unit 5. Developmental Biology

The following experiment is designed to study the role of several hormones in the regulation of metamorphosis in frogs.

Group #

Treatment

Days to Metamorphosis

1

Saline

30

2

Prolactin

> 100

3

TSH

15

4

Thyroxine

10

5

Corticosterone

30

6

Thyroxine + Corticosterone

5

7

Prolactin + TSH

30

8

Thyroid gland removed

> 100

These results suggest which of the following about prolactin (group 2 and group 7) at the dose tested?

TLS Online TPP Program

#Question id: 12954

#Unit 7. System Physiology – Animal

A 55-year-old male patient with hypertension has had his blood pressure reasonably well controlled by administration of a thiazide diuretic. During his last visit (6 months ago) his blood pressure was 130/75 mm Hg and his serum creatinine was 1 mg/100 ml. He has been exercising regularly for the past 2 years, but recently has complained of knee pain and began taking large amounts of a nonsteroidal anti-inflammatory drug. When he arrives at your office, his blood pressure is 155/85 and his serum creatinine is now 2.5 mg/100 ml. Which of the following best explains his increased serum creatinine?

TLS Online TPP Program

#Question id: 29545

#Unit 6. System Physiology – Plant

Mutations in the EDS1 causes no SA synthesis causes