TLS Online TPP Program

#Question id: 4776


True breeding agouti mice with genotype AABB were cross to true breeding albino mice with genotype aabb. All F1 offspring having agouti phenotype were allowed to intercross to produce F2 progeny as following 

                                 A- B -          agouti,

                                 aa B-            black

                                 --  bb            albino

Following genetic cross and there proportional?

Genetic cross

Proportional of albino

AaBbXAaBb

A

AaBb X aabb

B

Aabb X aaBb

C

AABbX aaBb

D

#Unit 8. Inheritance Biology
  1. A- 1/4   B- 1/2   C- 1/2  D- 1/4   

  2. A- 1/16 B-1/4 C- 1/8     D- 1/4  

  3. A- 1/4     B- 1/4  C- 1/2 D- 1/4    

  4. A- 1/16   B- 1/2   C- 1/8  D- 1/4    

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TLS Online TPP Program

#Question id: 3286

#Unit 11. Evolution and Behavior

 In a human population, the gene frequencies of the alleles for the ABO system are as follows:

A = 29%                         B = 7%                                    0=64%

Assuming complete random mating and Hardy-Weinberg equilibrium,

What are the blood type A frequencies in this population?

TLS Online TPP Program

#Question id: 3287

#Unit 11. Evolution and Behavior

Which statement is not an assumption of the Hardy–Weinberg law?

a. The allelic frequencies (p and q) are equal.

b. The population is randomly mating.

c. The population is large.

d. Locus is di-allelic

TLS Online TPP Program

#Question id: 3288

#Unit 11. Evolution and Behavior

Migration causes changes in the allelic frequency of a population by introducing alleles from other populations. The magnitude of change due to migration depends on

TLS Online TPP Program

#Question id: 3289

#Unit 11. Evolution and Behavior

If, someday, an archaean cell is discovered whose SSU-rRNA sequence is more similar to that of humans than the sequence of mouse SSU-rRNA is to that of humans, the best explanation for this apparent discrepancy would be

TLS Online TPP Program

#Question id: 3290

#Unit 11. Evolution and Behavior

Dog breeders maintain the purity of breeds by keeping dogs of different breeds apart when they are fertile. This kind of isolation is most similar to which of the following reproductive isolating mechanisms?

TLS Online TPP Program

#Question id: 3291

#Unit 11. Evolution and Behavior

Which of the following is the most predictable outcome of increased gene flow between two populations?