In Drosophila melanogaster, vestigial wings are determined by a recessive allele of a gene that is linked to a gene with a recessive allele that determines black body color. T. H. Morgan crossed black-bodied, normal-winged females and gray-bodied, vestigial-winged males. The F1 were all gray bodied, normal winged. The F1 females were crossed to homozygous recessive males to produce testcross progeny. Morgan calculated the map distance to be 17 map units. Which of the following information is correct about the testcross progeny?

TLS Online TPP Program

#Question id: 14959

#Unit 6. System Physiology – Plant

In addition to self assembly, enzymes may facilitate wall assembly. A prime candidate for enzyme-mediated wall assembly is-

TLS Online TPP Program

#Question id: 14958

#Unit 6. System Physiology – Plant

Where the matrix polysaccharides are synthesized by

TLS Online TPP Program

#Question id: 14957

#Unit 6. System Physiology – Plant

the xylan backbone may be synthesized by a distinctly different group of synthases, including synthases named;

TLS Online TPP Program

#Question id: 14956

#Unit 6. System Physiology – Plant

Where is the catalytic domain of cellulose synthase located?

TLS Online TPP Program

#Question id: 14952

#Unit 6. System Physiology – Plant

Some are thin areas where the primary wall is not covered by a secondary wall and are populated with plasmodesmata known as

TLS Online TPP Program

#Question id: 14947

#Unit 6. System Physiology – Plant

 Nonenzymatic proteins whose exact functions are uncertain. Such proteins may be localized in the walls of specific cell types or more widespread

cell wall protein                                                                   Tissue localization

      A) HRGP (hydroxyproline rich glycoprotein)              i) Xylem, fibers, cortex, root hairs

      B) AGP (arabinogalactan protein) ii) Primary xylem and phloem

     C) PRP (proline-rich protein)                                          iii) Cambium, vascular parenchyma

     D) GRP (glycine-rich protein)                                  iv) Varied cell-specific expression

Which of the following combinations of nonenzymatic protein with its correct location?