Which of the following DNA regulatory protein “motifs” consists of three a-helices, in a single polypeptide, acting independently of other polypeptides in the regulation of DNA? the leucine zipper the zinc finger the homeodomain all of the above none of the above Which of the following processes regulates the maturation of mRNA from hnRNA (in the control of gene expression in humans and other eukaryotes)? translation of polypeptides self-replication of DNA processing of RNA transcription of RNA self-replication of RNA
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 DNA regulatory protein “motifs” consists of three a-helices, in a single polypeptide, acting independently of other polypeptides in the regulation of DNA?
- the leucine zipper
- the zinc finger
- the homeodomain
- all of the above
- none of the above
Which of the following processes regulates the maturation of mRNA from hnRNA (in the control of gene expression in humans and other eukaryotes)?
- translation of polypeptides
- self-replication of DNA
- processing of RNA
- transcription of RNA
- self-replication of RNA
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