A snapdragon plant that bred true for white petals was crossed to a plant that bred true for purple petals, and all the F1 had white petals. The F1 was selfed. Among the F2, three phenotypes were observed in the following numbers

white                              240

solid-purple                    61

spotted-purple                19

Total                              320

Which of the following reason to deviation f2 phenotype ratio ?

TLS Online TPP Program

#Question id: 7126

#Unit 5. Developmental Biology

What is the role of stem cells with regard to the function of adult tissues and organs?

TLS Online TPP Program

#Question id: 5705

#Unit 8. Inheritance Biology

The chromosome has been broken at two points, and the segment between them has been inverted. What will be affects of this inversion however, person is heterozygous this abnormality?

TLS Online TPP Program

#Question id: 1561

#Unit 4. Cell Communication and Cell Signaling

The cells and signaling molecules involved in the initial stages of the inflammatory response are ?

TLS Online TPP Program

#Question id: 32343

#Unit 2. Cellular Organization

At intermediate concentrations of actin subunits, the plus end of the filament remains in the T conformation, while the minus end adopts the D conformation because:

TLS Online TPP Program

#Question id: 19180

#Unit 13. Methods in Biology

If two successive PCRs are carried out, in which PCR there are chances of having a non-specific product?