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TLS Online TPP Program

#Question id: 7159

'Intercalary growth' in a regenerating amphibian limb means that if a distal blastema is grafted to a proximal stump:

#Unit 5. Developmental Biology
  1. the distal blastema grows back, to regenerate proximal elements, then out, to regenerate distal structures.
  2. the stump grows out to regenerate proximal structures, until the positional values of the blastema are produced, at which time the distal blastema takes over and completes outgrowth of distal structures.
  3. the distal blastema grows out, regenerating distal structures, resulting in a limb lacking intermediate structures.
  4. the distal blastema grows proximally, intercalating intermediate structures between it and the stump, then growth stops, resulting in a regenerate lacking distal structures.
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TLS Online TPP Program

#Question id: 3377

#Unit 9. Evolution & Diversity of Life Forms

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?
TLS Online TPP Program

#Question id: 3378

#Unit 9. Evolution & Diversity of Life Forms

Following certain conditions is present in a population?

A- Large Population

B- Each locus follows complete dominance

C- No reproductive advantage

D- No migration

E- No linkage between genes

Which of the following above condition allowed to validity of Hardy- Weinberg Prediction?
TLS Online TPP Program

#Question id: 3379

#Unit 9. Evolution & Diversity of Life Forms

polymorphism is define existence of two or more form of same species within same population at the same time and place .polymorphism either balanced or transient depending upon type of natural selection  which of the following reason for balanced genetic polymorphism

a. each morph has selective advantage at equal intensity

b. non of the morph has selective advantage over other

c. heterzygote superiority
TLS Online TPP Program

#Question id: 3380

#Unit 9. Evolution & Diversity of Life Forms

Human population having mutant allele to caused color blindness, following different phenotype frequency?

Phenotype

Male

Female

Normal

.70

.72 heterozygous

.49 homozygous

Colour blindness

.30

.09
Which of the following frequency of color blindness allele and color blind female in their population?
TLS Online TPP Program

#Question id: 3381

#Unit 9. Evolution & Diversity of Life Forms

A source population with allelic frequency of p and q is .90 and .10 respectively. Recipient population with 900 individuals having allelic frequency of p and q is .30 and .70 respectively. If 100 migratory individual is inter from source to recipient population. After migration what is allelic frequency of p in their recipient population?
TLS Online TPP Program

#Question id: 3382

#Unit 9. Evolution & Diversity of Life Forms

Researchers in the Netherlands studied the effects of parental care giving in European kestrels over 5 years. The researchers transferred chicks among nests to produce reduced broods (three or four chicks), normal broods (five or six), and enlarged broods (seven or eight). They then measured the percentage of male and female parent birds that survived the following winter. (Both males and females provide care for chicks.) Which of the following is a conclusion that can be drawn from this graph?