Studies done by Buchner showed that ground-up yeast cells were able to convert sugar to alcohol. The components of the mixture that were responsible for this transformation were

TLS Online TPP Program

#Question id: 1762

#SCPH01 Biochemistry

What do Th1 cells secrete?

TLS Online TPP Program

#Question id: 12905

#SCPH06 I Botany

Some gene/protein is used to identify the Disorder in humans

Match them correctly:

1. Tyrosine Kinase(TK)                        i. Atherosclerosis

2. HIV transactivator                          ii. Hypertension

3. Angiotensinogen                            iii. Kaposis Sarcoma

4. CET protein                                      iv. Cardiac Hypertrophy

TLS Online TPP Program

#Question id: 12959

#SCPH06 I Botany

Ozone layer depletion, since the 1970s, is primarily

TLS Online TPP Program

#Question id: 1708

#I Life Science/ Life Sciences Group – I-V

When antigen reaches a lymph node in a primed animal:

TLS Online TPP Program

#Question id: 15654

#SCPH06 I Botany

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. Next you isolate a mutation, designated MelB–, which gives uninducible melibiase activity. Mapping experiments show that MelB– is linked to Mel1. Using an F' factor that carries the chromosomal region surrounding Mel1, you perform the following genetic tests:

                      

Describe the basic genetic properties of the MelB– mutation?