How are the genes in the beta-globin locus different from each other? They have different evolutionary origins, from different ancestral genes. B) They have different sequences and locations on the chromosome. They are expressed at different times in development. (D) Some are expressed in all cells; some are expressed only in red blood cells. (E) They are dispersed on on different chromosomes.

Q: Epigenetics addresses a) the mechanism by which the environment alters a person’s genotype. b) the…

A: Answer : Option (C) is correct. ~ the mechanisms that can alter gene expression.

Q: Which of the following is an example of epigenetic modulation?       a)  Ionization-induced DNA…

A: Introduction  The physical structure of DNA is altered by epigenetic modifications. DNA methylation,…

Q: A geneticist uses a generic engineering approach to mutate the TATA-building protein (TBP) of a…

A: *The TBP is the gene that instruct for making a protein called the TATA box binding protein. *This…

Q: Which of the following is a mechanism to imprint genes? O A) Methylation of cytosine B)…

A: The epigenetic modifications involves DNA methylation. By this process the expression of genes…

Q: Arctic foxes typically have a white coat in the winter. In summer, when there is no snow on the…

A: Answer: ADAPTATION : It is the ability of a living organism to change their living habitat, physical…

Q: 4) Goats have been genetically modified to produce an anticlotting protein in their milk. The…

A: As mentioned in the question that goats have been genetically modified to produce an anticlotting…

Q: A friend of yours who works at a biotechnology start up company has computationally designed three…

A: The application of scientific and technical principles to the processing of the material by…

Q: is the p53 protein an activator or a repressor? How do you know?

A: p53 protein is protein which is coded by Tp53 gene which is also known by the name Gaurdian of the…

Q: Which of the following is not true of cDNA produced usinghuman brain tissue as the starting…

A: Introduction  Central Dogma: it is the key mechanism by which DNA can be transcribed into mRNA by…

Q: Recessive genes are usually expressed in humans only when ___ a ) they are coding for genetic…

A: There are two alleles of a single trait or a character, one which we are seeing in each generation…

Q: Ataxia-telangiectasis (ATM) is a rare genetic neurodegenerative disease. About 20% of people with…

A: Ataxia-telangiectasia ( A-T) is caused by mutations in the ATM (ATM serine/threonine kinase or…

Q: Which of the following is characteristic of genes and gene regulation in bacteria but not in…

A: Genes are the functional units of DNA. It carries information that gets expressed and results in the…

Q: What is a proto-oncogene? What are the typical functions of proteinsencoded by proto-oncogenes? At…

A: Oncogenes are those mutated or highly expressed genes that may alter the normal functioning of the…

Q: Which of the following statements about the DNA in one of your brain cells is true? (A) Most of the…

A: Answer is C.) It is the same as the DNA in one of your liver cells.

Q: The following interactions occur during the expression and secretion of an antibody heavy-chain…

A: 1. A signal peptide sequence and a signal recognition particle (SRP) interact (Step c):  - Early in…

Q: Regulation of gene expression is necessary because: A) all cells do not need to express all genes…

A: Gene expression is the process by which the instructions in our DNA are converted into a functional…

Q: The expression of genes in bacterial cells can be regulated on different levels in the production of…

A: Prokaryotic organisms are single-celled organisms that do not have a cell nucleus, and their DNA…

Q: What is Epistasis? A) When one gene effect another B) When one gene effect multiple phenotype C)…

A: Introduction  Genes are the key component of genetic material which control almost all the cellular…

Q: Most human viruses associated with cancers activate:  a.) nuclear factor-kB (NF-kb) b.) apoptosis…

A: Cancer is a pathological condition characterized by uncontrolled cell division, proliferation and…

Q: RNAi A) Depletes protein products of genes. B) Uses dsRNA to bind to transcription factors. C)Is…

A: Introduction : RNA or ribonucleic acid is a biomolecule that is structurally similar to the…

Q: Which of the following is an example of a proto-oncogene? 1) cell cycle inhibitor 2) tumor…

A: Oncogene The gene that are cancerous and divide cell abnormally.

Q: Somatic stem cells are best described as ...

A: Since  the cells are somatic they would not divide through out life. They are not at dysregulated.…

Q: Researchers sought to grow blood vessels in a lab for implantation into patients with clogged…

A: Introduction :- Coronary arteries are blood vessels that supply oxygenated blood to the heart…

Q: Can you please answer 19, and 20 please

A:

Q: Cancer cells are easier to maintain in culture than normal cells because a) they divide without the…

A: Cancer cells are mutated cells that are cultured in laboratories for studying various human…

Q: Some people with neurofibromatosis develop blemishes on their skin, while others are severely…

A: Neurofibromatosis is a genetic disorder that causes tumors to form on nerve tissue. These tumors can…

Q: Which of the following statements about cancer is false? (a) oncogenes arise from mutations in…

A: Proto Oncogenes are the genes that cause cancer when there are alterations in them. Several factors…

Q: Why is p53 considered a tumor suppressor protein?   Question 12 options:   a)  Because p53…

A: p53 is a tumor suppressor protein because it helps to prevent cells with damaged DNA from dividing.…

Q: #17 You have isolated a gene that is important for the production of milk and wish to study its…

A: Orthologous genes are those which encode for the same protein which performs the same functions but…

Q: mitosis

A: Mitosis: It is defined as the process of cell duplication where one cell divides into two…

Q: In an epic battle, the Green Goblin was able to wound Spider-Man and collect a sample of his cells.…

A: When the two cross-over events or recombination events tend to occur at the same homologous pair of…

Q: 1.  Two closely related species may have a very similar genome size but very different number of…

A:

Q: is a normal cellular gene that through a A an oncogene. OA) proto-oncogene...loss-of-function OB)…

A: An oncogene is a cancer-causing gene that has been mutated. A proto-oncogene is a type of oncogene…

Q: As shown in Figure 13-14, what is the fundamental distinction between a pair-rule gene and a…

A: A pair-rule gene is a type of gene that plays a role in the creation of insect fragmented embryos.…

Q: A researcher that uses mouse models to understand protein function in the immune system ,genetically…

A: INTRODUCTION Genetic Engineering Genetic engineering uses rrecombinant DNA technology to alter the…

Q: new strain of influenza virus emerges that results in world wide pandemic of influenza. Affected…

A: Recombination is a process by which pieces of DNA are broken and recombined to produce new…

Q: Which of the following is NOT true regarding Hox genes.     A) The sequence they appear in their…

A: Hox genes: Hox genes are a group of similar genes that define parts of an embryo's structure along…

Q: "Transcriptome Analysis Reveals Profiles of Expressed Genes in Cellsand Tissues". Define this ?

A: Transcriptome analysis is the study of the transcriptome using high-throughput methods, such as…

Q: Which of the following is NOT an outcome of a point mutation? A) position effect B) no effect at…

A: It is the type of mutation where a single base is changed,  inserted or deleted from a DNA or RNA…

Q: Homeotic genes(A) encode transcription factors that control the expression ofgenes responsible for…

A: Gene is the basic subunit of the chromosome and it refers to the nucleotide sequence. It is known to…

Q: Which among the following statements is not true about mutations? *       a.) It may either occur at…

A: Answer is option c.)

Q: a)  5 nuclear RNA polymerases   b)  3 nuclear RNA polymerases . c)  6 nuclear RNA polymerases…

A: RNA polymerase (RNAP), also known as DNA-directed RNA polymerase, is an enzyme responsible for…

Mitochondrial Mutations

A mitochondrion is a cellular organelle that serves as the site for cellular respiration and energy production (ATP or Adenosine Triphosphate). It is a double-membrane-bound organelle and is only present in eukaryotic cells.