Which of the following statements correctly describes Archibald Garrod's hypothesis for how "inborn errors of metabolism" such as alkaptonuria occur?

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#Question id: 29574

#Unit 6. System Physiology – Plant

Some of the following statement are given regarding ToxA gene  

a. It produced by Stagonospora nodorum cause glume blotch and tan spot disease

b. encodes a 13‐ kDa polypeptide

c. stimulates host cell death in a light dependent manner

d. stimulates host cell death in a dark dependent manner

Which of the following is true regarding TMV

TLS Online TPP Program

#Question id: 2958

#Unit 2. Cellular Organization

Which of the following structures is not a feature of the mitotic chromosome?

TLS Online TPP Program

#Question id: 15652

#Unit 13. Methods in Biology

You are studying a new strain of E. coli that can utilize the disaccharide melibiose very efficiently. You find that utilization depends on the enzyme melibiase, which is encoded by the gene Mel1. Mel1 is not expressed unless melibiose is present in the growth medium. You have isolated a mutation that causes constitutive melibiase activity, which you designate MelA–. P1 phage mapping experiments using a Tn5 insertion linked to Mel1 show that MelA– is not linked to Mel1. Moreover you find that when an amber suppressor is introduced into a MelA– mutant, normal melibiase regulation is restored. Classify the MelA– mutation in terms of its basic genetic properties, 

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#Question id: 12331

#Unit 10. Ecological Principles

The species richness of a community refers to the

TLS Online TPP Program

#Question id: 1852

#Unit 4. Cell Communication and Cell Signaling

To which one of the following groups would it be acceptable to give a live attenuated viral vaccine?