Plant height control by 3 pair of polygene, two varieties of maize averaging 48 and 72 inches in height, respectively, are crossed. The F1 progeny is quite uniform averaging 60 inches in height. What is number of average phenotype out of 500 F2 plants?

#Question id: 23987

#General Aptitude

#Question id: 10319

#Unit 1. Molecules and their Interaction Relevant to Biology

#Question id: 2626

#Unit 2. Cellular Organization

lac operator is made up of

#Question id: 668

#Unit 1. Molecules and their Interaction Relevant to Biology

What feature does a Ramachandran plot display?

#Question id: 1524

#Unit 4. Cell Communication and Cell Signaling

Tumor-suppressor genes generally encode proteins that in one way or another inhibit cell proliferation. Loss-of-function mutations in one or more of these proliferation inhibitory proteins contribute to the development of many cancers. Prominent among the classes of proteins encoded by tumor-suppressor genes are:

A. Intracellular proteins that regulate or inhibit entry into the cell cycle

B. Receptors or signal transducers for secreted hormones or developmental signals that inhibit cell proliferation

C. Checkpoint pathway proteins that arrest the cell cycle if DNA is damaged

D. Proteins that promote apoptosis

Following genes belongs to the above class-

i. p53

ii. Rb

iii.TGF- β

iv. Caspase 3 and 7

which of the following match is correct?