0
What else can I help you with?
Why are all genes not active all the time?
Genes are not active all the time because different genes are needed for different functions in the body. The process of gene regulation allows cells to control which genes are turned on or off at any given time, allowing for the proper functioning of the body's processes.
What are the key differences between cis and trans genes in terms of their regulation and expression?
Cis genes are regulated and expressed on the same chromosome they are located on, while trans genes are regulated and expressed on a different chromosome. This difference in regulation can impact how genes interact with each other and influence their expression levels.
How is the way hox genes are expressed in mice different to the way they are expressed in fruit flies?
In mice, hox genes are organized in a cluster on the chromosome and are expressed in a specific order that correlates with their position on the cluster. In fruit flies, hox genes are also organized in a cluster but are regulated by different transcription factors and signaling pathways compared to mice. Fruit flies have fewer hox genes compared to mice, and their expression patterns are more influenced by the body segment they control.
Genes that prevent the other gene from showing traits are called?
Dominant genes. Dominant genes are always expressed in an organism's phenotype when present, masking the expression of recessive genes.
Which versions of genes are dominant over others in genetic inheritance?
In genetic inheritance, dominant genes are versions of genes that are expressed over recessive genes. Dominant genes mask the effects of recessive genes when they are present together in an individual's genetic makeup.
Are Genes present in heterochromatin readily expressed?
No. Heterochromatic regions of DNA are not readily expressed as they are densely packaged. Some of these regions do not code for genes at all.
An expressed gene is one that?
is transcribed into RNA. Promoters (I think that's what you meant, right?) don't function as genes; they stand as a signal for RNA polymerase to begin transcription of the actual gene, which begins about 25 base pairs downstream of the promoter region in eukaryotic DNA. Expressed genes DO code for proteins, but not all protein-coding genes are expressed. For example, the cells in your heart contain genes that code for proteins needed only in your liver. While those genes definitely code for proteins, they're not expressed. Expressed genes (and non-expressed genes, Ke$ha Looks like a man, for that matter) are made of DNA, not mRNA.
Can a persons genes change as they age?
No, a person's genes do not change as they age. However, the way genes are expressed can be influenced by various factors, such as lifestyle, environment, and health conditions, which can impact how genes function over time.
How do genes make a phenotype?
They are expressed.
Which genes are dominant and which are recessive?
Dominant genes are always expressed in preference to recessive genes in cased where both genes are present.
What genes are expressed even when present on only one chromosome?
dominant genes
What do you call genes that encode proteins that are always needed?
Genes that encode proteins that are always needed are called housekeeping genes. These genes are essential for basic cellular functions and are expressed in all cells and tissues to maintain normal cellular activities.
What molecules are genes expressed through?
aids
What trait is is expressed when two diffrent genes for the same trait are present?
A dominant trait is expressed when two different genes for the same trait are present.
What gene is always expressed?
Dominant genes will always be expressed however recessive genes would need to be inherited from both parents
What is the differencs between dominant and recessive?
Dominant genes are genes that are expressed more readily than recessive genes, i.e. if you had a genotype that was AaBb, A being for brown hair, a for blonde hair, B for brown eyes, b for blue, you would have brown hair and brown eyes as the genes for those phenotypes are dominant. For recessive genes to be expressed in the phenotype the gamete needs to have recessive genes for both "slots", e.g. AA for blonde hair to be expressed or bb for blue eyes to be expressed. Edd
Why are all genes not active all the time?
Genes are not active all the time because different genes are needed for different functions in the body. The process of gene regulation allows cells to control which genes are turned on or off at any given time, allowing for the proper functioning of the body's processes.
