You and your lab partner have isolated 20 new mutant yeast strains that are defective in synthesis of threonine, an amino acid. These Thr- mutants do not grow on minimal medium, but they do grow on minimal medium supplemented with threonine. Ten of your Thr- mutants (numbered 1 through 10) were isolated in a strain of mating type a (MAT a). The other 10 Thrmutants (numbered 11 through 20) were isolated in a strain of mating type α (MAT α). You and your lab partner cross each of the MAT a strains to each of the MAT α strains, and you include crosses to the appropriate wild-type strains. Your experimental observations are shown in the table below, where (-) indicates diploids that did not grow on minimal medium and (+) indicates diploids that did grow on minimal medium.

What is the maximum number of genes that these 20 mutants could represent?

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#Question id: 30056

#Unit 7. System Physiology – Animal

The highest arterial pressure in the arteries after blood has been ejected from the left ventricle during systole, known as:

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#Question id: 4240

#Unit 3. Fundamental Processes

Use the figure to answer the question. The figure represents tRNA that recognizes and binds a particular amino acid (in this instance, phenylalanine). Which codon on the mRNA strand codes for this amino acid?

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#Question id: 17217

#Unit 7. System Physiology – Animal

Which of the following stress affects the body's structure and function Such as diseases, mobility problems?

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#Question id: 28731

#Unit 2. Cellular Organization

For selective export of certain membrane proteins from the ER to Golgi contain___

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#Question id: 29048

#Unit 10. Ecological Principles

Many organisms minimize heat loss to the environment via___