LO70 Identify whether a trait is influenced by the environment or not given an example. Squirrels exposed to pesticides present demethylation of genes associated with heart disease which is passed on to future generations even when they have not been exposed to pesticides. This scenario is a result of: Epigenetics and the environment because the exposure to pesticides influences the methylation of the gene The environment because the exposure to pesticides influences the expression of the gene Epigenetics because the expression of the gene depends on the exposure of the pesticide and methylation pattern Genetics because the methylation of the gene determines its expression

Q: Using coat color in mice and the development of female honeybees as examples, explain how dietary…

A: The inheritance of phenotypic characteristics without any changes at the genetic level is called…

Q: o what extend does environmental factors on proteins influence gene expression and using the notion…

A: Environmental factors play a crucial role in shaping gene expression, and their impact on human…

Q: In a first attempt to describe the relationship between genes and phenotypes, Beadle and Tatum in…

A: One gene-one enzyme hypothesis was discovered in the early 1940s that each gene controls the…

Q: Explain how epigenetics demonstrates the influence of the environment on phenotype or gene…

A: Epigenetics: The study of how our behaviour and environment reflect changes in the genetic…

Q: Mutations outside of the coding region of a gene can have an effect on the expression of the gene.…

A: Mutations can be defined as a change in nucleotide sequences. It can occur either due to error…

Q: http://www.letsgethealthy.org/students/games/epigenetics-game/ (Links to an external site.)   For…

A: Genetics is the branch of biology that studies how traits, characteristics, and hereditary…

Q: What is the difference between silencing genes by imprintingand silencing by epigenetic…

A: Genomic imprinting is a process of silencing genes by the process of DNA methylation. The…

Q: Compare and contrast epigenetic changes that are programmedduring development versus those that are…

A: The structure and setup of chromatin are controlled by groups of compounds, some catalyzing the…

Q: ptions: Loss of expression Increased expression Formation of mutated structures None of the above

A: Any abrupt changes in the sequence of DNA results into mutation. It may or may not change the…

Q: Describe how a cell can increase or decrease its expression of particular genes, and why this…

A: An increase or decrease in gene expression can regulate the synthesis or inhibition of proteins.…

Q: Which of the following is a correct statement about epigenetics? Group of answer choices Increased…

A: Genetic changes are associated with changes in the DNA sequences.

Q: n and Give examples of mutations that can have global effects on gene expression.

A: Mutation is defined as any change or alternation in the sequences of DNA or, in the case of…

Q: Explain how environmental factors can modify gene expression?

A: This is true that environmental factors can modify the gene expression, these environmental…

Q: Explain the role of environmental factors in modifying the epigenome ?

A: The record of the changes in the DNA (deoxyribonucleic acid) and histone proteins is called…

Q: Mutation rates vary for genes. All of the following are factors that influence the mutation rate of…

A: The mutation is one of the significant mechanism which directly affects the survival of the organism…

Q: Using coat color in mice and the development of female honeybees as examples, explain how dietary…

A: Epigenetics is a state of gene expression where there are no changes in the DNA sequence but the…

Q: afa Q a/a Q Unsupplemented Supplemented b A"/a offspring Unsupplemented mother Supplemented mother…

A: Given information The cross involved is Awa x aa. One group of offspring with supplemented mother…

Q: Transgenic mice would be expected to have all of the following characteristics EXCEPT: Contain the…

A: A transgenic animal is an animal that expresses an exogenous gene. Transgenic animals are used for…

Q: Define about expression QTLs (eQTLs) ?

A: The genes can be associated with simple or complex traits. The genes decide the nature of traits and…

Q: Studies on monkeys have provided insight on the role of maternal care on the epigenome. Imagine you…

A: The study to examine the role of epigenetics in shaping animal / human behaviour is called as…

Q: Using this information annotate the diagram.

A: Transgenic plants: Transgenic plants are those plants, which carry additional, stably integrated and…

Q: Following a gene duplication event, the additional copy of the gene is identical to the original…

A: The duplication is the doubling of a specific region of DNA (gene) that increasing the copy number…

Q: What is the most likely method by which a gene produces red eyes in fruit flies?

A: Answer is C.  Mutation changes the coding sequence of the genes so that it codes for red protein…

Q: LO69 Identify whether a trait is epigenetic or genetic given an example. It has been shown that…

A: Epigenetic traits are heritable changes in gene expression and cellular phenotype caused by…

Q: Present an overview of the main aspects of the flow of geneticinformation in cells.

A: Genes are the basic structural and functional unit of inheritance. The genetic material in most of…

Q: For gene expression profiling, what does a microarray or “gene chip” measure directly? Group of…

A: Microassay is technology-based upon the fact that a complementary sequence of DNA can be used to…

Q: DNA methylation prevents gene expression.  Methylation and de-methylation are stimulated by a…

A: Methylation  Methylation is metabolic process takes place on the DNA. The methylation of DNA control…

Q: ct one: a The gene is turned off, but still expresses a protein product. . The gene becomes…

A: DNA methylation is associated with the silencing of gene expression.

Q: Which of the following is not one of the ways in which environmental events can influence the…

A: The environment has an effect on our gene expression rather than our DNA gene sequences. Gene…

Q: What is a regulatory enhancer?

A: Gene expression It refers to the process by which information from a gene is utilized in the…

Q: What is the relationship between methylation and genomic imprinting? O Differential methylation of…

A: The DNA methylation is the process by which the gene expression is turned off. That means the…

Q: . Null alleles (mutant genes) produce no protein product. This is a genetic change. However,…

A: Introduction Epigenetics is the study of how your behaviour and environment can influence how your…

Q: Housekeeping genes that code for enzymes such as those that provide energy via glycolysis are…

A: Genes encode proteins and proteins direct cell work. Thusly, the great many genes communicated in a…

Q: Geneticists have been exploring ways to suppress the expression of the extra chromosome 21 in…

A: Chromosomes are a compact form of DNA wrapped around some proteins and are generally present in a…

Q: The methylation of a promotor: is random; sometimes the promotors are methylated and sometimes…

A: methylation of DNA has been associated with silencing of the gene expression and methylated DNA is…

Q: A partial DNA sequence, a partial MRNA transcript, and part of the CFTR polypeptide in a cystic…

A: Cystic fibrosis is a disesase that damage the cell producing mucus, sweat and other juices.  in…

Q: Describe what a pseudogene is and what impact they have on gene expression

A: A pseudogene is a nonfunctional gene that can be compared to junk DNA.

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.