TLS Online TPP Program

#Question id: 4741


The F2 progeny from a particular cross exhibit a modified dihybrid ratio of 9 : 7 (instead of 9 : 3 : 3 : 1). What phenotypic ratio would be expected from a testcross of the F1?

#Applied Microbiology
  1. 1:3     

  2. 1:2:1      

  3. 3:1                   

  4. 2:1:1 

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TLS Online TPP Program

#Question id: 37846

#Plant Biotechnology

Single cell production in plant tissue culture is associated with:

TLS Online TPP Program

#Question id: 37847

#Plant Biotechnology

Somatic hybrid production is possible using:

TLS Online TPP Program

#Question id: 37848

#Plant Biotechnology

Consider the following statements about plant tissue culture techniques and their applications:
(A) Meristem culture is used for virus-free plant production.
(B) Seed culture increases efficiency of seed germination.
(C) Callus culture is used to produce somatic embryos.
(D) Anther culture and ovary culture both produce haploid plants.
(E) Suspension culture is mainly used for producing multicellular tissue masses.
(F) Protoplast culture is applied for somatic hybrid production.

Which of the following combinations of statements is correct?

TLS Online TPP Program

#Question id: 37849

#Plant Biotechnology

Column AColumn B
1. Meristem cultureA. Produce somatic embryos
2. Seed cultureB. Single cell production
3. Callus cultureC. Virus-free plant production
4. Anther cultureD. Haploid plant production
5. Suspension cultureE. Increase efficiency of seed germination
6. Protoplast cultureF. Somatic hybrid production
7. Ovary cultureG. Haploid plant production

TLS Online TPP Program

#Question id: 37850

#Plant Biotechnology

Which of the following processes describes the change of mature, differentiated plant cells into meristematic cells in culture?

TLS Online TPP Program

#Question id: 37851

#Plant Biotechnology

An unorganized mass of cells formed when plant tissues are cultured on agar-gelled nutrient medium is called: