TLS Online TPP Program

#Question id: 5331


In some me insect XX is female and XO is male. Red body color caused by recessive mutation, while wild type body color is green .Gene for body colour on X chromosome .if homozygous red female is crossed with wild type male, the phenotype of their offspring will be

#Unit 8. Inheritance Biology
  1. All female is red while all male is green  

  2. All female is green while all male is red

  3. All female and male are red       

  4. All female and male are green         

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TLS Online TPP Program

#Question id: 19806

#Unit 12. Applied Biology

Several approaches have been used to engineer plants for virus resistance, which are as follows:
(1) coat protein gene 
(2) ribozyme-mediated protection
(3) defective viral genome
(4) antisense RNA approach
Which of the following above statements are correct?

TLS Online TPP Program

#Question id: 11745

#Unit 6. System Physiology – Plant

sieve cells of the sieve elements of phloem conduct sugars throughout the plant. The following statements given about characteistics of Sieve cells of sieve elements in seed plants;

a.)  There is no P-protein in gymnosperms

b.) Angiosperm contains sieve plate pores are open channels

c.) Pores in sieve areas appear blocked with membranes in gymnosperms

d.) Companion cells are sources of ATP and perhaps other compounds

Which of the following combination is correct?

TLS Online TPP Program

#Question id: 15964

#Unit 12. Applied Biology

what are the reason behind embryo culture for the mature embryo?
a) Low survival of the embryo invitro
b) when embryo remains dormant for the long periods
c) To avoid inhibition in the seed for germination
d) High survival of the embryo invivo
e) For converting sterile seeds to viable seedlings

TLS Online TPP Program

#Question id: 3656

#Unit 3. Fundamental Processes

In nucleotide excision repair, an endonuclease makes nicks on either side of the lesion.

TLS Online TPP Program

#Question id: 33495

#Unit 2. Cellular Organization

Polymorphism may be detected at the phenotypic level when 
A. A sequence affects gene function
B. At the restriction fragment level when it affects a restriction enzyme target site, 
C. At the sequence level by direct analysis of DNA.

Which of the above is/are correct statement