Restriction fragment length polymorphism denotes that a single restriction enzyme produces fragments of different lengths from the same stretch of genomic DNA of different strains of a species or from different related species. RFLPs are detected as follows:

i.  Large molecular weight genomic DNA is isolated from several strains or related species;

ii.  The fragments in these digests are separated through electrophoresis

iii.  These 'DNAs are then digested with a selected restriction enzyme

iv.  Exposed to a suitably radio-labelled appropriate DNA probe under conditions favouring DNA: DNA hybridization

v.  The resulting gel lanes are transferred and fixed to a suitable solid support and

vi.   The free probes are removed

vii.  The fragments to which the probe has hybridized are detected by filming them as distinct bands on a suitable photofilm through autoradiography.

#Question id: 3500

#Unit 11. Evolution and Behavior

To call a behavior altruistic, an evolutionary biologist will have to demonstrate that

A) These behavior is decrease the individual fitness of the donor and increases the individual fitness of the recipient

B) These behavior is increases the individual fitness of both the donor and the recipient

C) Overall increase the inclusive fitness of the population

D) These behavior depend on genetic relation

Which of the following above statement is correct?

#Question id: 3501

#Unit 11. Evolution and Behavior

following graph related with mate choice  during natural selection ? Which of the following correct?

a. male investment exceed  that of female

b. female investment exceed  that of male

c. Reproductive investment by the sexes is strongly influenced by differences in the degree of parental investment

d.leads to male mate choice

e. overall increase fitness

f.female mate choice

#Question id: 3502

#Unit 11. Evolution and Behavior

Sexual dimorphism (SD) is a pattern that is seen throughout the animal kingdom and differences between the sexes in coloration are common in many organisms. Following some statement are given

A) There are many mechanisms that drive the evolution of SD, the most accepted mechanism being sexual selection

B) Mate choice is an important proximate mechanism of sexual selection, often the sex with the higher reproductive investment is the ‘choosy’ sex

C) Larger species are more sexually dimorphic than smaller species

D) Terrestrial species tend to be more sexually dimorphic than arboreal species

Which of the following above statement is correct?

Which one of the following is correct?

#Question id: 3503

#Unit 11. Evolution and Behavior

Following figure shown mate choice, following some statement is given

A) Male mate choice

B) More variance of matting success in female

C) Polygyny

D) More variance of matting success in male

E) Female mate choice

F) Polyandry

#Question id: 3504

#Unit 11. Evolution and Behavior

Bird has a choice of four food resource with following character . assume all resource are equally abundant Following sequence of preference for resource ?

#Question id: 3505

#Unit 11. Evolution and Behavior

Patterns of relatedness are different in hymenopterans, which are haplodiploid. Which of the following value of relatedness R1, R2, R3 and R4 respectively in figure?