Which of the following mechanisms may be involved when PRC1complexes silence gene expression?a. The compaction of nucleosomesb. The attachment of ubiquitin to histone proteinsc. The direct inhibition of transcription factors, such as TFIIDd. Any of the above may be involved in silencing of gene expressionby PRC1 complexes.
Gene Interactions
When the expression of a single trait is influenced by two or more different non-allelic genes, it is termed as genetic interaction. According to Mendel's law of inheritance, each gene functions in its own way and does not depend on the function of another gene, i.e., a single gene controls each of seven characteristics considered, but the complex contribution of many different genes determine many traits of an organism.
Gene Expression
Gene expression is a process by which the instructions present in deoxyribonucleic acid (DNA) are converted into useful molecules such as proteins, and functional messenger ribonucleic (mRNA) molecules in the case of non-protein-coding genes.
Which of the following mechanisms may be involved when PRC1
complexes silence gene expression?
a. The compaction of nucleosomes
b. The attachment of ubiquitin to histone proteins
c. The direct inhibition of transcription factors, such as TFIID
d. Any of the above may be involved in silencing of gene expression
by PRC1 complexes.
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