#Question id: 1682
#Unit 4. Cell Communication and Cell Signaling
Extensive allelic polymorphism is found in MHC:
#Question id: 14707
#Unit 5. Developmental Biology
#Question id: 4457
#Unit 3. Fundamental Processes
In the holoenzyme, which sigma region acts as a molecular mimic of DNA?
#Question id: 1186
#Unit 4. Cell Communication and Cell Signaling
Which of the following explains why Ras is activated quickly by RTKs?
#Question id: 29102
#Unit 8. Inheritance Biology
In mice Igf2 gene which encodes a protein called insulin like growth factor II (Igf2). Offspring inherit one Igf2 allele from their mother and one from their father The paternal copy of Igf2 is actively expressed in the fetus, but the maternal copy is not expressed. which of the following is correct about this gene?
a) this is an example of genomic imprinting and showing maternal imprinted
b) this is an example of genomic imprinting and showing paternal imprinted
c) mechanism of imprinting is due to the addition of methyl (CH3) groups to DNA nucleotides
d) mechanism of imprinting is due to changing the nucleotide sequences