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TLS Online TPP Program

#Question id: 12520

During the biosynthesis of precursor All-trans-β-carotene is isomerized to 9-cis-β-carotene by ____A_____While 9-cis-β-Carotene is cleaved by carotenoid cleavage_____B_______ to produce_____C______.

#Unit 6. System Physiology – Plant
  1. A-dioxygenases, B-β-carotene isomerase, C-carlactone
  2. A-β-carotene isomerase, B-dioxygenases, C-carlactone
  3. A-β-carotene isomerase, B-NCED, C-5-Deoxystrigol
  4. A-cytochrome P450 monooxygenase (CYP), B-dioxygenases, C-9-cis-β-Carotene
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TLS Online TPP Program

#Question id: 6979

#Unit 5. Developmental Biology

The muscle-forming cells of the vertebrate limb come from:
TLS Online TPP Program

#Question id: 6980

#Unit 5. Developmental Biology

Teeth form from
TLS Online TPP Program

#Question id: 6983

#Unit 5. Developmental Biology

In vertebrates, the heart forms from:
TLS Online TPP Program

#Question id: 6984

#Unit 5. Developmental Biology

Which of the following genes is unlikely to be involved in preaxial polydactyly in mice?
TLS Online TPP Program

#Question id: 6985

#Unit 5. Developmental Biology

The ventricular proliferative zone is:
TLS Online TPP Program

#Question id: 6988

#Unit 5. Developmental Biology

Many cells in the body divide only rarely, if at all; neurons, red blood cells, and keratinocytes are extreme examples. In which portion of the cell cycle would such cells be considered to be?