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TLS Online TPP Program

#Question id: 18928

With respect to nucleic acid hybridization, which, if any, of the following statements is false?

#Unit 13. Methods in Biology
  1. The probe is a labeled nucleic acid or oligonucleotide that is expected to hybridize to a target DNA sequence within an unlabelled test nucleic acid population.
  2. The probe is a known single-stranded nucleic acid or oligonucleotide that is intended to hybridize to complementary target sequences in a poorly understood nucleic acid test sample.
  3. The object of a hybridization assay is to identify target sequences within a test sample that are related to the probe so that some new information is gained about the target sequences.
  4. During a hybridization assay, a heteroduplex is formed by un-natural base pairing between complementary probe and target sequences that show a sufficiently high degree of base pairing across part or all of their lengths.
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TLS Online TPP Program

#Question id: 3377

#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?
TLS Online TPP Program

#Question id: 3378

#Unit 11. Evolution and Behavior

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 11. Evolution and Behavior

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 11. Evolution and Behavior

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 11. Evolution and Behavior

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 11. Evolution and Behavior

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?