There may be more than one correct answer for each Which of the following motifs can be found in DNA-binding proteins? a.) helix-loop-helix b.) zinc fingers c.) leucine zippers d.) CpG islands Which of the following motifs can be used to bind protein dimers? a.) helix-loop-helix b.) zinc fingers c.) leucine zippers d.) CpG islands Which of the following are correct regarding enhancers? a.) Enhancers may be located a great distance from the initiation site they regulate. b.) Enhancers can be either upstream or downstream from the initiation site. c.) Enhancers directly bind DNA and prevent binding of activators to the DNA. d.) Enhancers may function in either orientation (forward or backward).
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.
There may be more than one correct answer for each
Which of the following motifs can be found in DNA-binding proteins?
a.) helix-loop-helix
b.) zinc fingers
c.) leucine zippers
d.) CpG islands
Which of the following motifs can be used to bind protein dimers?
a.) helix-loop-helix
b.) zinc fingers
c.) leucine zippers
d.) CpG islands
Which of the following are correct regarding enhancers?
a.) Enhancers may be located a great distance from the initiation site they regulate.
b.) Enhancers can be either upstream or downstream from the initiation site.
c.) Enhancers directly bind DNA and prevent binding of activators to the DNA.
d.) Enhancers may function in either orientation (forward or backward).
Introduction :-
A motif is a short, recurring sequence of nucleotides in DNA or amino acids in a protein that has a specific biological function. Motifs often act as recognition sites for DNA-binding proteins or enzymes and are involved in regulating gene expression, DNA replication, and other biological processes.
For example, the TATA box is a motif found in the promoter region of many genes that acts as a recognition site for the transcription factor TATA-binding protein (TBP), which is required for initiation of transcription.
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