A. Environment can have a large influence on genes. Give an example (in humans) where environment impacts gene expression. You are welcome to use outside sources to address this question. Just make sure they are reliable (.gov, or .edu).
Ans) Genes expression can be influenced by
environmental factors which may be internal or external.
For example : Temperature , which is an external
factor.
Gender , which is internal factor.
External environmental factors like temperature , drugs and light
helps to determine the genes which are used to turn off and on and
hence , effect the development and function of organism.
Interaction between gene and environment takes place when 2
genotypes expresses variations in the environment which are
different in their ways. When the difference in the phenotypes are
continuous it shows the relation between the environment as well as
gene. The variations in the environment may be either chemical ,
biological or physical. It is also useful for better understanding
of variable disease.
For example : Exposure of sunlight has greater
impact of risk of skin cancer in fairer humans as comapared to
darker ones.
Stay safe?and for any query feel free to ask in the comment section.
A. Environment can have a large influence on genes. Give an example (in humans) where environment...
Enhancers can regulate genes from a distance, and yet they promoters influence of only some genes changing Insulators are particular enhancers to that control access of potential insulator sequence translatiorn Insulators can be identfied by cloning a promoter and an enhancer and determining the effect on transcription of a between a distant the same at all times at different times static dynamic In humans, insulators bind to with each other to fornm which then interact Enhancers affect transcription from promoters...
can someone answer 14-17
Genome structure (4) 14. (4 pts) Humans have about 20,000 protein genes encoded in a genome of about 3 billion bp. Rice has about 37,000 protein genes in 300 million bp. How might you explain this difference in gene density? Nuclear organization (14) 15. (6 pts) Describe the structure of a nucleosome. 16. (4 pts) How does chromatin structure affect gene expression? 17. (4 pts) Give two examples of specific chemical modifications which control chromatin structure.
Part E. Genetic Influence on Body Weight Genes can influence a person's body weight in a variety of ways. For example, genetic factors can affect levels of appetite hormones, rate of thermogenesis, or the degree to which an unhealthy environment will affect an individual's ability to maintain energy balance. Choose the statement below that correctly describes genetic influence on body weight View Available Hint(s) Family members often have similar body weights, even if they live in different environments. According to...
Is there GxE (gene-by-environment interaction) for the effects of sex in humans? Recall that GxE occurs where the effect of a given environmental change depends on an individual's genotype (for example, where a "better" environment is not equally better for all genotypes), or where the effect of a given genetic change depends on an individual's environment (for example, where a "taller" genotype adds a quantitatively different increment to the individual's expected height, depending on its environmental circumstances). In fact, these...
Yet, all the cells in your body contain the same
genes (and same alleles). The difference across cell types
is that genes get selectively expressed (turned on or off)
based on the proteins needed for cellular function given their
environment.
Select which statement explains the reason why hair does not
normally grow on your muscle cells.
a.
Muscle cells have the gene for keratin, but do not express
it
b.
Muscle cells do not have the gene for keratin and...
PLEASE GIVE ME AN EXAMPLE! HAVE to know: Dihybrid Crosses (2 genes), **KNOW the dihybrid F2 phenotypic ratio is 9:3:3:1 (9/16dom/dom, 3/16 dom/rec, 3/16 rec/dom, 1/16 rec/rec) 1.- HAVE to know how to make a dihybrid Punnetts quare 2.- HAVE to know how to do 2 separate monohybrid Punnett squares and use the Product Law & Fork-Line Method to find phenotypic probabilities. Fork-Line Method to find phenotypic probabilities
Given what you have learned about evolution, the classification of organisms, genetics, inheritance, DNA technology, the building blocks of life, chemistry, cells, and biology in general (OK basically everything you have learned thus far in this course), write a 1 paragraph response to the question below. Be sure to include concepts and terms from class in your responses. If you use outside sources, make sure you give them credit! To what extent are humans in a technological society exempt from...
Uption 4. The inheritance of hair and eye color is very complicated. Scientists have found approximately 10-20 genes responsible for determining hair and eye color in humans (sheesh - I thought a dihybrid cross with 2 genes was bad...). Although many genes are involved in producing these phenotypes, it does seem that just a few genes play a major role in determining the color of our hair and eyes. The following is a simplified, but still somewhat realistic view of...
I do not understand? Can someone give me an outline of what this entire thing means? Edit: Sorry, I would like to know the answer - but instead of a direct answer, I still want to learn it! So an outline of how to answer that question in full would be best, thank you. Question: In chapter 18, we have focused on large-scale as well as the inter- and intracellular events that take place during embryo-genesis and the formation of...
What genes (or kind of genes) will you focus on in your investigative research? Provide 2-3 reasons for your choice of these gene/s. Starting with the bone sample itself, what methods will you use to get DNA that you can sequence? Which “ingredients” in your lab reactions will determine which gene or genes are copied? How is it that these ingredients are able to target a specific gene? What method will you use to see if your efforts to copy...