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TLS Online TPP Program

#Question id: 277

Which statement is not true about histones?

#SCPH12 I Genetics

  1. They are positively charged at biological pH.

  2. They only occur in eukaryotes.

  3. Most species that have histones contain five different types.

  4. There is wide variation in the amino acid sequences of histones among species.

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TLS Online TPP Program

#Question id: 8930

#SCPH06 I Botany

Soon after the coelom begins to form, a researcher injects a dye into the coelom of a deuterostome embryo. Initially, the dye should be able to flow directly into the
TLS Online TPP Program

#Question id: 11798

#SCPH05 I Biotechnology

Companion cells transport of photosynthetic products from producing cells in mature leaves to the sieve elements in the minor veins of the leaf. There are at least three different types of companion cells in the minor veins of mature, exporting leaves, All three cell types have dense cytoplasm and abundant mitochondria;
TLS Online TPP Program

#Question id: 3274

#SCPH06 I Botany

The common edible frog of Europe is a hybrid between two species, Rana lessonae and Rana ridibunda. The hybrids were first described in 1758 and have a wide distribution, from France across central Europe to Russia. Both male and female hybrids exist, but when they mate among themselves, they are rarely successful in producing offspring. What can you infer from this information?
TLS Online TPP Program

#Question id: 357

#SCPH01 Biochemistry

What is the concentration of H+ in a solution of 0.1 M NaOH?
TLS Online TPP Program

#Question id: 15489

#SCPH06 I Botany

Glyphosate resistance,  Aromatic amino acid are all produced by targeting which pathway