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#Question id: 5356


In the following pedigree, individuals with shaded circle or shaded square show presence of a recessive autosomal trait. The calculated risk of occurrence of this trait for III-I is

#Unit 8. Inheritance Biology
  1. 1/2     

  2. 1/4        

  3. 1/8         

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TLS Online TPP Program

#Question id: 4593

#Unit 11. Evolution and Behavior

Which of Darwin's ideas had the strongest connection to his reading of Malthus's essay on human population growth?

TLS Online TPP Program

#Question id: 4891

#Unit 8. Inheritance Biology

plantlike organism on the planet Pandora can have three recessive genetic traits: bluish leaves, due to an allele (a) of gene A; a feathered stem, due to an allele (b) of gene B; and hollow roots due to an allele (c) of gene C. The three genes are linked and recombine. A geneticist performed a testcross with an organism that had been found to be heterozygous for the three recessive traits, and she was able to identify progeny of the following phenotypic distribution (+ = wild type):

 A) Genes are in the order: a-c-b

B) Genes are in the order: a-b-c.

C) Genes are in the order: b-a-c

D) Interference is one

E) Greatest distance between gene a and b

TLS Online TPP Program

#Question id: 4301

#Unit 3. Fundamental Processes

Which of the following proteins prevents eukaryotic mRNAs from being recruited to the ribosome prior to egg fertilization

TLS Online TPP Program

#Question id: 19242

#Unit 12. Applied Biology

The GUS activity in transformed plant tissues can be localized by the presence of a blue color that is formed after the hydrolysis of the uncolored substrate 

TLS Online TPP Program

#Question id: 8891

#Unit 9. Diversity of Life Forms

While vacationing in a country that lacks adequate meat inspection, a student ate undercooked ground beef. Sometime later the student became easily fatigued, and lost body weight. At about the same time, whitish, flattened, rectangular objects full of small white spheres started appearing in his feces. Administration of niclosamide cured the problem. The student had probably been infected by a