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TLS Online TPP Program

#Question id: 4608

What must be true of any organ described as vestigial?

#XL - S Microbiology

  1. It must be analogous to some feature in an ancestor.

  2. It must be homologous to some feature in an ancestor.

  3. It must be both homologous and analogous to some feature in an ancestor.

  4. It need be neither homologous nor analogous to some feature in an ancestor.

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TLS Online TPP Program

#Question id: 15340

#XL - S Microbiology

Serrogate light chain formation takes place in 
TLS Online TPP Program

#Question id: 15342

#XL - S Microbiology

The heavy chain is then expressed on the cell surface in combination with the surrogate light chain, which is made up of_______________, together they form the pre-B-cell receptor,
TLS Online TPP Program

#Question id: 15406

#XL - S Microbiology

Which method of gene transfer involves direct contact between the bacteria?
TLS Online TPP Program

#Question id: 15407

#XL - S Microbiology

The end result of F factor mediated conjugation:
TLS Online TPP Program

#Question id: 15408

#XL - S Microbiology

Which of the following is not a protein or group of proteins required for conjugation to occur?
TLS Online TPP Program

#Question id: 15409

#XL - S Microbiology

 A heterozygous trihybrid corn plant is testcrossed and the following progeny are produced (all traits are recessive to their wildtype alternative);
          booster                              6
          booster, silkless                  137       
          booster, liguleless, silkless      291
          liguleless                          142
          liguleless, silkless                  3
          silkless                            30
          booster, liguleless                  34
          wildtype                            339
What is the order of the loci on the chromosome?