In watermelons, bitter fruit (B) is dominant over sweet fruit (b), and yellow spots (S) are dominant over no spots (s). The genes for these two characteristics link at 30 map unit. A homozygous plant that has bitter fruit and yellow spots is crossed with a homozygous plant that has sweet fruit and no spots. If an F1 plant is backcrossed with the sweet fruit, no spot parent, what are the phenotypes ratio expected in the their offspring

TLS Online TPP Program

#Question id: 29060

#Unit 10. Ecological Principles

Find out the correct explanation of adaptation for osmoregulation in freshwater fish?

TLS Online TPP Program

#Question id: 29061

#Unit 10. Ecological Principles

Ecological niche modelling is termed as

TLS Online TPP Program

#Question id: 29062

#Unit 10. Ecological Principles

Ecological envelope is termed as____

TLS Online TPP Program

#Question id: 29063

#Unit 10. Ecological Principles

Which of the following statement correct define the Proportional similarity values ?

a) less than 0.70 have been taken to indicate competitive exclusion

b) greater than 0.70 indicate possible coexistence

c) less than 0.70 have been taken to indicate possible coexistence

d) greater than 0.70 indicate competitive exclusion

TLS Online TPP Program

#Question id: 29064

#Unit 10. Ecological Principles

Regarding the geographic range of a species, which of the following statements is true?

TLS Online TPP Program

#Question id: 29065

#Unit 10. Ecological Principles

Ecological and crude density of fish prey in related with predator. Water level is drop during the dry season and further increases in a rainy season. Following some observation effect are present on their density

A) Ecological density is not change with respect to water level       

B) Ecological density is gradually decrease with low water level

C) Crude density increases over ecological density during low water level             

D) Ecological density increases while crude density decreases during low water level

E) There is no effect on crude density with seasonal water level

Which of the following above observation is correct?