TLS Online TPP Program

#Question id: 2721


With respect to Histone H1 DNA packaging which of the following is false?

#Zoology
  1. H1 induce 10 nm fibre formation

  2. H1 binding gives nucleosome a defined angle

  3. H1 stabilizes higher order chromatin structures

  4. H1 binds to two DNA helices at once

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TLS Online TPP Program

#Question id: 38065

#Plant Biotechnology

Which of the following is an example of indirect somatic embryogenesis?

TLS Online TPP Program

#Question id: 38066

#Plant Biotechnology

Which of the following statements regarding "Direct Somatic Embryogenesis" is INCORRECT? 

TLS Online TPP Program

#Question id: 38067

#Plant Biotechnology

In the context of Indirect Somatic Embryogenesis, the cells that are induced to form callus and then embryos are known as: 

TLS Online TPP Program

#Question id: 38068

#Plant Biotechnology

Which of the following explants is Classically associated with Indirect Somatic Embryogenesis in Daucus carota (Carrot)? 

TLS Online TPP Program

#Question id: 38069

#Plant Biotechnology

Match the Terminology (List I) with its Description/Example (List II):

List I (Terminology)List II (Description/Example)
A. PEDCI. Cells requiring induction to re-enter mitotic cycle & form callus
B. IEDCII. Leaf tissue of Coffee
C. Direct EmbryogenesisIII. Cells already committed to embryonic development
D. Indirect EmbryogenesisIV. Scutellum of Barley/Rice
Choose the correct option: 

TLS Online TPP Program

#Question id: 38070

#Plant Biotechnology

Given below are two statements, one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A): Direct somatic embryogenesis is generally rarer than indirect somatic embryogenesis.
Reason (R): Direct embryogenesis occurs from "Pre-Embryonic Determined Cells" (PEDCs) which are found only in specific embryonic tissues like the scutellum or nucellus.

In light of the above statements, choose the correct answer: