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#Question id: 3258


Which of the following incorrect about genetic drift

#Unit 11. Evolution and Behavior
  1. There is no link with fitness    

  2. Change the frequency of one allele either positively or negatively at each generation

  3. Genetic drift responsible for directional changes in allele frequencies over several generations.

  4. This is micro evolutionary force

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TLS Online TPP Program

#Question id: 3538

#Unit 8. Inheritance Biology

Monohybrid cross allowed between heterozygous Rr (Round) and RR (Round), all progeny having Round seeded plant were allowed to self-fertilize to produce numerous progeny that are 

TLS Online TPP Program

#Question id: 19476

#Unit 12. Applied Biology

The cry genes (or Cry proteins) have so far been grouped into 18 distinct groups, which either code for a 

TLS Online TPP Program

#Question id: 13052

#Unit 13. Methods in Biology

What would be the effect on the PCR reaction if any of the following circumstances arose: 1) there are no primers in the reaction, 2) there are no dNTPs in the reaction, 3) there is no Taq polymerase in the reaction?

TLS Online TPP Program

#Question id: 12513

#Unit 7. System Physiology – Animal

A 26-year-old construction worker is brought to the emergency room with a change in mental status after working a 10-hour shift on a hot summer day (average outside temperature was 97°F). The man had been sweating profusely during the day but did not drink fluids. He has a fever of 102°F, heart rate of 140 beats/min, and blood pressure of 100/55 mm Hg in the supine position. On examination, he has no perspiration, appears to have dry mucous membranes, and is poorly oriented to person, place, and time. Assuming that his kidneys were normal yesterday, which of the following sets of hormone levels describes his condition, compared with normal?

TLS Online TPP Program

#Question id: 1913

#Unit 4. Cell Communication and Cell Signaling

The fetus can be protected from maternal transplantation attack by: