TLS Online TPP Program

#Question id: 9571


All homeostatic systems used by organisms to regulate body temperature are described by which of the following?

#SCPH28 | Zoology
  1. They are able to maintain internal temperatures within 5°C of the "set point”
  2. They use a negative feedback process to accomplish temperature regulation
  3. They are independent of any external source of energy
  4. They are dependent on external cues (such as day length) to activate the system
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TLS Online TPP Program

#Question id: 5444

#SCPH28 | Zoology

Which one of the following statements is INCORRECT?

TLS Online TPP Program

#Question id: 5445

#SCPH06 I Botany

A plant height in Maize is control by 3 pair of polygene .Two varieties of maize averaging 120 and 60 inches in height, respectively, are crossed. The F1 progeny is quite uniform averaging 90 inches in height. What is percent of F2 progeny that is resemble with either 120 cm or 60 cm height?

TLS Online TPP Program

#Question id: 5445

#SCPH28 | Zoology

A plant height in Maize is control by 3 pair of polygene .Two varieties of maize averaging 120 and 60 inches in height, respectively, are crossed. The F1 progeny is quite uniform averaging 90 inches in height. What is percent of F2 progeny that is resemble with either 120 cm or 60 cm height?

TLS Online TPP Program

#Question id: 5446

#SCPH06 I Botany

In a plant, height is control by three quantitative trait loci.  Each dominant additive allele is contributing 5 cm height in plant. Maximum expected plant height is 50 cm. What is minimum expected height? 

TLS Online TPP Program

#Question id: 5446

#SCPH28 | Zoology

In a plant, height is control by three quantitative trait loci.  Each dominant additive allele is contributing 5 cm height in plant. Maximum expected plant height is 50 cm. What is minimum expected height? 

TLS Online TPP Program

#Question id: 5447

#SCPH06 I Botany

Hydrangea plants of the same genotype are planted in a large flower garden. Some of the plants produce blue flowers and others pink flowers. This can be best explained by which of the following?