Barrier insulators stop the spread of heterochromatin HР-1 HMȚase HAT FIGURE 12-26 In this model, barier insulators recruit enzymatic activities such as histone acetyltransferase (HAT) that promote euchromatin formation. The letter "M" stands for methylation, and the letter "A" for acetylation. Heterochromatin Euchromatin Barrier insulator

Q: How do neutral solutes move across the plasma membrane? Can the polar molecules also move across it ...

A: In the presence of a concentration gradient, neutral solutes may diffuse across the membrane by a pr...

Q: In the koala, a newly created somatic cell (such as a skin cell) contains 16 total chromosomes. When...

A: The skin cells or somatic cells of koala are diploid and contain 16 chromosomes i.e., 2n=16. The som...

Q: A cell has n=2. How many total chromosomes are in a diploid cell? b. Draw this cell during metaphase...

A: A diploid cell is a cell in which there are two sets of chromosomes present in them. 

Q: Parents (1) TtAa (2) TtAa Phenotype Tall, Axial Tall, Axial Gamete genotype Genotype of Offspring:. ...

A: Introduction : Mendel selected seven pairs of contrasting characters in pea plant for his experiment...

Q: CASE #4 : BLEEDING IN LATE PREGNANCY ( Abruptio Placenta) Setting: Hospital Chief Complaint: Vaginal...

A:

Q: 1.What is environmental science? 2.Why is the study of environmental science important to your ever...

A: Biology is the study of cells, tissues, organs, organ systems, organisms, species, and communities o...

Q: Let's Apply Instructions: Classify the genetic modifications mentioned below according to their appl...

A: Genetic engineering has several applications

Q: A virus enters your system, but what happens next? Review the flowchart attached below that shows ho...

A: The question is based on body reaction when it is invaded by the viruses.

Q: Place each events number listed below on the correct part of the “stages of illness” graph (picture ...

A: * Immune cells are of two types  B cells  T cells  * T cells also called thymus cells and B cells ...

Q: Describe the structure of cell wall.

A: All known living organisms' basic structural, functional, and biological unit is the cell.It is the ...

Q: 5. Which of the following exercise pairings provides an ideal and most beneficial example of a super...

A: This is related to physiology of muscle action  Superset helps to combine to exercises which are per...

Q: Phenotype Genotype Number MM LMLM 182 MN LMLN 172 NN LNLN 44 Calculate the frequency of LM allele? A...

A: According to Hardy Weinbergs equilibrium- p2+q2+2pq=1 and p+q=1 Where p= frequency of the dominant a...

Q: Does Mycobacterium tuberculosis produce an exotoxin or endotoxin Discuss how this affects the host. ...

A: This question is based on the mycobacterium tuberculosis and the difference between endotoxin and ex...

Q: Assume that you counted 67 plaques on a bacterial plate where 0.1ml of a 10-5 dilution of phage was ...

A: A dilution: It can be defined as a method of addition of more solvent to a solution of a definite co...

Q: How are the lifestyle (free – living vs parasitic) related to the morphology of the annelids?  ⮚ Wh...

A: Comparative anatomy is the study of the "similarities and dissimilarities" between various objects. ...

Q: 5. Considering everything that is going on around us, if speciation can happen right now so that you...

A: The process by which populations of organisms change over generations is known as evolution. Genetic...

Q: An ornage cat has a litter of four kittens: one orange, and three calicos. Assuming a single father ...

A:

Q: What is time constant ? The steel ball bearings of 40 mm diameter and initially at uniform temperatu...

A: ANSWER;-  

Q: WHAT KIND OF ANTIGEN WILL ANTI-A AND ANTI B DETECT?

A: * Antibodies are y shaped proteins also known as immunoglobulins they identifies antigens of invadin...

Q: on't copy from Google

A: Let us first discuss the location of each gland and hence it will lead us to the location. Parotid ...

Q: Table 5: Type of Evidence of evolution Type of Evidence How does it serve as evidence of evolution? ...

A: Introduction The evidence for evolution is found at all levels of organization in living things and ...

Q: The pedigree below shows a family where several members (filled boxes) are affected with a genetic d...

A: Pedigree : Pedigree analysis is a graph that depicts a family tree and shows which family members ar...

Q: What is meant by the term epigenetic inheritance? Whatare two examples of such inheritance?

A: The transferring on of traits from parents to offspring is known as heredity, also known as inherita...

Q: A.) Create or propose a biosynthetic route for the production of plumbagin B.) Identify the precurso...

A: create or propose a biosynthetic route for the production or plumbagin   Description Plumbagin (2...

Q: Now read this article The explosion of new coronavirus tests that could help to end the pandemicLink...

A: Barcoding- Detects viral RNA, uses Next-gen sequencing to amplify viral RNA and can work on many sam...

Q: The Density-dependent limiting factor, density-independent limiting factor, logistic population grow...

A: Population growth: Population is the number of individuals present in a given area, so population gr...

Q: w6 analyze

A: 1. The evolutionary relationship between two species of same genus is such that they share most of t...

Q: Xist encodes a protein that will coat a Y chromosome to promote its compaction. Xist is located in t...

A: Xist  is a gene product which is inactive and it helps in dosage compensation in females. Females ha...

Q: summarize what Atom Probe Tomography is and how it work

A: Answer 

Q: Integral membrane proteins.. ..... ... Choose all that could apply are bound to the membrane by only...

A:

Q: 2.80 The fluid mechanics of the human arterial system is of vital importance to öür health and safet...

A: Re = [(Rho) X u X L]/[mu] Rho = Density/ Specific Gravity u= Flow Speed L= linear dimension Mu= Dyna...

Q: Effectiveness of sunscreens against UV radiation on Bacterial growth Control SPF Control SPF 5 min O...

A: UV (UV) radiation is a type of non-ionizing radiation that is discharged from the sun and fake sourc...

Q: 28. What is the intracellular glucose concentration if the AG for the following reaction is -20.1 kl...

A: The reaction given in the question is Glucose-6-Phosphat -> Glucose + Pi Delta G = -20.1 kJ/mol D...

Q: One argument for hunting and fishing is to limit wildlife populations to near 1/2 K.  WHY is this so...

A: Hunting can be isolated into three general classes: "resource hunting" (nourishment for own utilizat...

Q: Why do you think an infection caused by an endospore former might be harder to treat than one caused...

A: Microorganisms detect and adapt to changes in their surroundings. When favoured nutrients are deplet...

Q: How did the population growth curve with many predators compare with the normal population growth cu...

A: A population growth curve is a graph that shows an increase or decrease in the number of individuals...

Q: D D Intron +1 E E A В В C GGGCGG GCCCAATCT TATAAA Intron -5000 -100 -25 1. What region functions lik...

A: The transcription is the process of conversion DNA to RNA . DNA stands for dioxy ribonucleic acid an...

Q: The value of "n" in the field mouse is 20. How many chromatids are in a somatic mouse cell at the en...

A: Answer :- Option (B) is correct. - 40.

Q: How does cytokinesis in plant cells differ from that in animal cells?

A: The cytoplasm of a single eukaryotic cell divides into two daughter cells during cytokinesis, which ...

Q: biofilm-producing bacteria

A: Biofilm -producing bacteria are those in which there is accumulations of microorganisms of mono- or ...

Q: 3. Flavr Savr has a modified gene that is disrupted by the enzyme that causes ripening. A. True B. F...

A: Introduction: Bt Crops are named for Bacillus thuringiensis (Bt), a bacteria that naturally produces...

Q: Match items in the column that mostly related to each other. i. homology ii. biogeography iii. embry...

A: Homology can be defined;  as a similarilty in the structures or organ present between different spec...

Q: How do primatologists explain the large testicles of muriquis?

A: The muriquis, also known as woolly spider monkeys. They are closely related to both the spider monke...

Q: What are plastids? How are they classified on the basis of the type of pigments? Name them and the p...

A: Plastids are membrane-bound organelle found only in the cytoplasm of plants and other photosynthetic...

Q: In your own words, explain how gram staining is done and how it works.

A: Gram staining is a popular method for distinguishing between two large groups of bacteria based on t...

Q: Label A-K -Mantle -Foot -Posterior Adductor Muscle -Stomach -Gonad -Mouth -Anterior Adductor Muscle ...

A: The molluscs have soft body, ventral muscular foot, shell, mantle etc. Molluscs is the second larges...

Q: Consider a diploid organism that follows the XX-XO mode of sex determination. Normally, there are 7 ...

A: It is process of generation of 4 sperms (spermatozoon) from the parent germ cell. It involves a proc...

Q: How have muriquis adapted to their changing environment? They are spending more time out of the tree...

A: *Muriqui Monkeys confined with l long arms and legs and they are tree swingers through the treetops....

Q: Describe the Meselson and Stahl experiment and outline its significance.

A: Meselson and Stahl's experiment was done to demonstrate the semi-conservative nature of DNA replicat...

Q: What are the important properties of enzymes?

A: Introduction :- enzyme is a molecule that works as a catalyst in living organisms, controlling the p...