a) mitosis b) meiosis c) cytokinesis d) dyad formation What is a meristem? Give three characteristics of cells found in the region of cell division of the apical meristem. What types of organisms reproduce by mitosis? Why do they do this? Which cells d...
This is a result of asymmetric segregation of the X chromosome in male meiosis II, which gives rise to XX sperm. As a result, either one or two paternally-derived X chromosomes are eliminated from the embryo, which initiates female (XX) or male (X0) development, respectively (Fig. 1B)...
Some cells in the human body do not undergo cell division. These cells are the few exceptions, as cell division is one of the major processes in most cells.Answer and Explanation: One of the most important steps in cell division is that daughter cells must receive genetic material from the...
The DNA has to carry information from one generation of organism to the next. DNA has to put that in formation to work by determining the heritable characteristics of organism. Next DNA has to be easily copied because all of a cells genetic information has to be replicated every time a ...
A TDP-43 binds to the mRNA of the silent information regulator 1 (SIRT1), which is implicated in double-stranded DNA break repair and DNA metabolism in all cells [61]. SIRT1 is an NAD+ dependent class III histone deacetylase [61], which cooperates with elongation factor 1 (E2F1) to ...
Sickle cells The gene for this disease is prevalent in Sub-Saharan Africa, where malaria is common. Individuals who carry only a single sickle-cell gene are more tolerate of malarial infection. Lactase Persistence Modern-day lactose intolerance in humans ...
How can chromosomes be safe outside the nucleus during cell division? Explain why mitosis can occur in a haploid cell, but meiosis can't. Why does cell division occur only when the cell reaches a particular size? Why do the daughter cells of mitosis always have the same complement of chrom...
Write an essay that details the structure and function of a eukaryotic cell, how its cell membrane functions, and details of how that cell will carry out mitosis and meiosis. List and explain 5 differences between normal cells and cancer ...
How do internal regulatory proteins affect the cell cycle? (a) What is the role of microglial cells? (b) Why are they so important in the CNS? Why is pH important to enzymes? Why is the citric acid cycle called a cycle? What substances enter the cycle, and what metabolic ef...
A human body is built up of building blocks called cells that combine to form a whole organization inside the body responsible for performing various functions. Depending on its purpose and location, a human cell can take on various forms and sizes. Human cells include RBCs, WBCs, ...