TLS Online TPP Program

#Question id: 11461


Elephants hear sounds that are too low for humans to hear. This sensitivity is primarily due to the differences in the ________.

#Unit 7. System Physiology – Animal
  1. arrangement and shape of the ossicles
  2. flexibility of the basilar membrane in the cochlea
  3. size and flexibility of the tympanic membrane (eardrum)
  4. size and shape of the outer ear
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TLS Online TPP Program

#Question id: 5443

#Unit 8. Inheritance Biology

Two varieties of maize averaging 25 and 125 inches in height, respectively, are crossed. The F1 progeny is quite uniform averaging 75 inches in height. Plant height is control by 3 QTL, what is the probability of plant with 25 inch height in F2 generation?

TLS Online TPP Program

#Question id: 5444

#Unit 8. Inheritance Biology

Which one of the following statements is INCORRECT?

TLS Online TPP Program

#Question id: 5445

#Unit 8. Inheritance Biology

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: 5447

#Unit 8. Inheritance Biology

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?

TLS Online TPP Program

#Question id: 5448

#Unit 8. Inheritance Biology

Plant height control by 3 pair of polygene, two varieties of maize averaging 48 and 72 inches in height, respectively, are crossed. The F1 progeny is quite uniform averaging 60 inches in height. What is number of average phenotype out of 500 F2 plants?

TLS Online TPP Program

#Question id: 5449

#Unit 8. Inheritance Biology

Most behavioral traits are affected by many different genetic influences as well as environment. The best descriptor for such traits is: