In your own words, explain epigenetics. What is it? What are the main epigenetic marks? What do they do in terms of gene transcription? What are the enzymes involved?

Q: A population carries two alleles at a locus. One allele has a very small fitness advantage. What is…

A: Natural selection is process through which species adapt to their environments tend to survive to…

Q: Explain the origin of the name “gymnosperm.”

A: Introduction Conifers, cycads, Ginkgo, and gnetophytes are among the gymnosperms, a clade of…

Q: Explain your answer. Neutralizing the negative charge on the carbohydrate portions of a proteoglycan…

A: * Proteoglycans are proteins which are glycosylated heavily. The proteoglycan unit consists of a…

Q: What are two ways genetic variate is introduced in the species with meiosis?

A: Variation in the human genome can manifest itself in a variety of ways. However, in another type,…

Q: lydactyly – extra fingers or toes–is one symptom of Ellis-van Creveld syndrome. The syndrome is…

A: Founder effect is started by the small population left after a disaster. Regardless of the whole…

Q: 2. Dr. Kim at Ewha Research Center performed shotgun Sanger sequencing on ar unknown DNA sample, and…

A: This is sequence alignment which can be done by putting each fragment in such a way that it may…

Q: How many chambers does the pig heart have? 12.  How does the size of the pig lungs compare to the…

A: In biology you we deal with many animals and to understand their anatomy you have to dissect those…

Q: Questions: 1. What are the nutritional requirements of plants? 2. What special structures help the…

A: 1. The nutritional requirements of plants are water, carbon dioxide for photosynthesis, essential…

Q: How many different molecules composed of (a) two, (b) three, and (c) four amino acids, linked…

A: Proteins are the polypeptide chain of amino acids that are held together by the peptide bonds. These…

Q: What causes climate change? Be sure to include an explanation of greenhouse effect in your answer.

A: Introdroduction Climate change is described as a shift in the planet's weather conditions that lasts…

Q: Draw the structure of the tripeptide alanylglycylvaline and determine its name using three-letter…

A: The amino acids are the building blocks of proteins. Proteins are produced by the translation…

Q: -Photopsia is black dots 14 .A true .B false .C .D

A: Introduction Photopsia's are sometimes referred to as eye floaters or flashes, it is the presence of…

Q: Question 2 Which steps below require an ATP to run? Phosphorylation O Isomerization |Second…

A: ATP is the energy currency of the cell It is produced mainly from oxidation of fats and sugar which…

Q: What is the Leaf Economic Spectrum in different taxa?

A: In biology, taxa can be defined as a group of on or more populations of an organism. This represents…

Q: 3. How does meiosis contribute to genetic diversity? 4. Why is tetrad formation important? 5. How…

A: 3. Meiosis recombines genes and creates new  genetic variation by crossing over during pachytene…

Q: What are nuclear pores? State their function.

A: Introduction In this question we will discuss about the nuclear pores.

Q: What is the difference between prophase I of meiosis and prophase of mitosis? How are they similar?

A: Introduction  Cell division is the means of reproduction in which all cells need to copy their…

Q: The separation of homologous chromosomes in meiosis occurs in what phase?

A: Usually the separation of homologous chromosome always occurs at the Anaphase stage of Meiosis I.So…

Q: If someone is showing symptoms of acute mountain sickness, you should        Increase aerobic…

A: If someone, has fall in acute mountain sickness, he should move to a lower elevation as quickly and…

Q: heart

A:

Q: If a plant shows a symptom which could develop due to deficiency of more than one nutrient, how…

A: When a nutrient is deficient in a plant, it can manifest itself in a variety of ways. For example, a…

Q: Explain pressure flow hypothesis of translocation of sugars in plants.

A: Introduction Translocation means a change in location, it occurs in all plants, it involves the…

Q: Briefly explain the structure and some functions of DNA, RNA, and a close relative, adenosine…

A: Microbiology is the study of both disease-causing and beneficial microbes, including their cell…

Q: Question:- In an early log-phase E. coli population, there are 1 x 103 cells/ml the generation time…

A:

Q: In the absence of oxygen, cells consume glucoseat a high, steady rate. When oxygen is added, glucose…

A: In the cell cytoplasm, glucose is broken down into a three carbon molecule (3C) called pyruvate. It…

Q: Multicellular organisms have division of labour. Explain.

A: Introduction We will explain the given statement in below step.

Q: A X cross, is conducted when an organism with the dominant phenotype and unknown genotype is crossed…

A: This is the test cross, where an organism with dominant phenotype but unknown genotype is crossed…

Q: Genetic recombination occurs in species that reproduce ________

A: The process of recombination involves breaking and recombining fragments of DNA to create new allele…

Q: How can you distinguish between H. habilis and H. erectus?

A: Homo Habilis and Homo Erectus are two fascinating species of human or hominid evolution that are…

Q: Define Membrane Lipids.

A: Introduction A lipid is a nonpolar macrobiomolecule that can be dissolved in nonpolar solvents.…

Q: ill the Lac Operon be turned off or on if the allolactoase is

A:

Q: How can homeostasis work?

A: Answer

Q: Discuss the factors responsible for ascent of xylem sap in plants.

A: The ascent of water in the xylem is caused by the transpirational pull of the atmosphere. It is…

Q: How are the minerals absorbed by the plants?

A: Plants soak up minerals in the shape of ions from the soil. Earlier it became a concept that the…

Q: five developmental processes in the starfish that are similar to the sea urchin.

A: Starfish It is also called sea stars. It is an echinoderm that belongs to the class Asteroidea. It…

Q: What is X inactivation?

A:

Q: Why Dikaryomycetes and Coenomycetes are grades of fungal evolution?

A: If different members of a clade are more successful in comparison to other members due to the…

Q: 2) In the classic experiment discovering transformation (involving mice): a) F+ cells injected into…

A: Transformation process is defined as the acquisition of exogenous DNA by an organism in other words…

Q: nterphase includes three phases. Name the three phases and describes what occurs in each.

A: A cell cycle completes in two main phases that are interphase and mitosis. cell spends most of its…

Q: Hippocampal lesions in rats reliably disrupt the performance of tasks that involve memory for:

A: Hippocampal lesions It defines the condition when either part of the hippocampus is damaged by…

Q: What are the following and where do you find them in animal body (a) Chondriocytes (b) Axons (c)…

A: A*chondriocytes are the cells of cartilages present in small cavities within the matrix. They are…

Q: Give two reality images of pig heart ( the frontal and transverse sections from the dissection)…

A: Answer

Q: Please explain 3 potential complication the use of stent-grafts for the treatmen abdominal aortic…

A: In old age men and smokers, this abdominal aortic aneurysms are most commonly seen. An enlargement…

Q: In own words, give 5 or more reasons why most of the clinical features of the diseases…

A: Alpha-ketoglutarate dehydrogenase deficiency is an autosomal recessive disorder caused by partial or…

Q: What is a mesosome in a prokaryotic cell? Mention the functions that it performs.

A: When the plasma membrane invaginates into the nucleus of a prokaryotic cell, a convoluted membranous…

Q: How does restriction enzyme digestion allow for the determination of the correct plasmid construct…

A: Restriction enzymes are proteins that cut DNA at specific sequences. These enzymes are found in…

Q: 1. Fishing, hiking, hunting, and camping are examples of which ecological service?  a. Cultural…

A: Ecological service is considered as a natural beneficial process which arises from a healthy…

Q: Round (R) and yellow (Y) are dominant over wrinkled (r) and green (y) peas. Given the case that…

A: A Dihybrid cross is a type of cross between two organisms showing two different traits. Here one…

Q: What role does root pressure play in water movement in plants?

A: In plants, root pressure is essentially a force which aids in the upward movement of fluids into the…

Q: #6) Histological work suggests that colon cancer develops in a multistep fashion. Which of the…

A: ANSWER) (5) a, b and c Colonoscopy is the medical procedure for detecting the abnormal changes in…