Three main classes of photoreceptors mediate the effects of UV-A/blue light:

a) the cryptochromes,

b) the phototropins,

c) the phytochrome and

d) the ZEITLUPE (ZTL)

Function of these photoreceptors are-

i) that can promote plant photomorphogenesis

ii) plays roles in day length perception and circadian rhythms

iii) regulate chloroplast movements, and stomatal opening

TLS Online TPP Program

#Question id: 5841

#SCPH28 | Zoology

How are the BRCA proteins and their genes implicated in breast cancer?

TLS Online TPP Program

#Question id: 16134

#SCPH06 I Botany

You obtain 6 BACs (of known order, as shown below) and 7 STSs (of unknown order) that derive from a region of mouse chromosome 16 whose genomic sequence has not yet been finished.   

 

By PCR (using 20-bp primers at either end of each STS), you test each of the 6 BACs for the presence (+) or absence (-) of each of the 7 STSs. You obtain the following results:

 

You determine the DNA sequences of PCR products obtained at STS5 using BACs B, C, D, E, and F as PCR templates. The DNA sequences of PCR products obtained using BACs B and C are identical, but they differ by several nucleotide substitutions from the DNA sequences of PCR products obtained using BACs E and F. Oddly, PCR product obtained using BAC D appears to be a mixture of two sequences – one corresponding to the BAC B/ BAC C sequence and the other corresponding to the BAC E/ BAC F sequence. Briefly account for these findings, and explain how a single PCR assay could amplify two different sequences.

TLS Online TPP Program

#Question id: 4817

#SCPH12 I Genetics

How many different gametes can be formed by an organism with genotype AaBbCCddEe, If a, b and c gene are completely link?

TLS Online TPP Program

#Question id: 660

#I Life Science/ Life Sciences Group – I-V

Computers are used to advance the understanding of three dimensional protein structure by

TLS Online TPP Program

#Question id: 928

#I Life Science/ Life Sciences Group – I-V

 Which enzyme is the major regulatory control point for B-oxidation?