What is the function of the replication enzymes during S phase of the cell cycle? 1. Holding the sister chromatids together until they are separated during mitosis 2. Keeping the DNA tightly coiled 3.Copying the DNA in the chromosomes 4. Pushing the sister chromatids to opposite poles of the cell

Q: stacks of flattened membranes attached to or near ER receive proteins from ER and package them into ...

A: Introduction:  Cell is the basic unit of life. Animals and plants both are composed of several of ce...

Q: The species Canis Lupus (Gray Wolf) is most closely related to which of the animals listed: Dusicyon...

A: Introduction: In divergent evolution, two or more distinct species share a common ancestor from whic...

Q: A cell that uses an organic carbon source and obtains energy from light would be called a   photoaut...

A: Answer  Photoheterotrops

Q: (b) P generation P generation Precocious Normal Normal Normal puberty ở Pp puberty ? pp puberty ? Pp...

A: The term precocious puberty means when the development/onset of puberty characteristic or changes th...

Q: distinguish between hypo-osmotic overhydration and hyper-osmotic dehydration.

A: It happens when there exists an problem in homeostasis mechanism. Homeostasis basically functions he...

Q: Consider these two crosses and assume that independent segregation is exhibited by all gene pairs. D...

A: Introduction: The Punnett square is a square diagram used to predict genotypes in a cross or breedin...

Q: Distinguish between a nitrogenous base and a base found in inorganic chemistry.

A: Nitrogenous bases are organic molecules that include elemental nitrogen and possess the chemical cha...

Q: The diagram shows the levels of organization for an organism. organism 3 1 cells What levels are rep...

A: Humans, like other multicellular organisms, possess organ systems which work together to perform out...

Q: In pineapples, leaves may be spiny, spiny-tipped or piping. Pineapples of different phenotypes were ...

A: Introduction: Epistasis is a sort of gene interaction in which one gene masks or obscures the effect...

Q: What is osmotic pressure?

A: The spontaneous passage or diffusion of water or solvent from its region of high concentration to lo...

Q: 1. What is environmental science? 2. Give atleast 2 importance of environmetnal science

A: The things present around living beings make their environment.  

Q: Use the diagram to answer the question. Atmospheric Oxygen 1 Atmospheric Carbon dioxide What do the ...

A: Given: An image is given above to label.  Photosynthesis is an enzyme regulated anabolic process of ...

Q: List and describe each of the five major attributes of populations that help ecologists predict popu...

A: Introduction A population is defined as a group of individuals of the same species living and interb...

Q: Describe and state the unique features of Mucor amphibiorum. Provide references

A: Mucor It is a filamentous fungus. It is located in soil, plants, decaying materials. It is ubiquitou...

Q: All of the following, except one, down-regulate genes. Which is the one factor below that up-regulat...

A: Introduction: Gene expression is the process through which our DNA instructions are converted into a...

Q: Describe what happens during each stage of the cell cycle:

A: G1 Phase: - Cell grows in size Synthesis of mRNA takes place Proteins required for DNA synthesis ar...

Q: An organism that gains energy from redox reactions involving inorganic and organic chemicals is a(n)...

A: Redox reactions These reactions involve both oxidation and reduction. In these reactions, one substa...

Q: How does the frequency of action potentials in the primary sensory neuron code for stimulus intensit...

A: The nervous system's functional unit that transmits nerve impulses from the stimulus site to the cen...

Q: A clade is a grouping of species that do NOT share derived traits Group of answer choices True False

A: Species: it is a group of individuals that can interbreed and produce fertile offsprings.  Clade: th...

Q: Pathogen -Splinter Chemical Macrophage signals Fluid Mast cell Capillary Phagocytosis Red blood cell...

A: Answer 

Q: What is the specific structure of DNA during both the prophase and metaphase stages of mitosis? 1.Co...

A: There are a total of six stages in mitosis: Interphase Prophase Metaphase Anaphase Telophase Cytoki...

Q: Ted heats some food just to boiling, and stores some of it immediately in a container which he place...

A: A microorganism, or organism, is a living being of minute size, which might exist in its single-cell...

Q: What muscles are necessary for an earthworm to move? 2. If an earthworm is placed to a glass, how do...

A: Introduction: An earthworm is a segmented worm that belongs to the phylum Annelida and is a terrestr...

Q: Describe at least one way that we utilize alcohol fermentation by yeast to make a food or beverage p...

A: Fermentation - In the absence of oxygen, some microorganisms like bacteria and yeast breakdown certa...

Q: Which of the following ideas aided in the development of our current understanding of evolution? (Pl...

A: Uniformitarianism is a principle that suggests that claims that processes operating in the present a...

Q: The microscope image above shows the human chromosomes from a white blood cell.  To create the image...

A: Collected from WBC  G1 phase No Explanation is given below

Q: 3. 2. 4. 5.

A: Leaf is a photosynthetic organ. It is usually green in colour as it contains a green coloured pigmen...

Q: Answer the following questions: What is meant by “double fertilization”?

A: "Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for y...

Q: A mouse fed phytanic acid uniformly labeled with 14C produces detectable levels of radioactive malat...

A: Malate  Malate or malic acid is the is the dicarboxalic organic compound which is produced by metabo...

Q: Bdellovibrio would be great to use to treat all human pathogens, but it cannot be used as biological...

A: Based on an experiment conducted in 1992 by Jackson and Whiting, Bdellovibrios is a potential agent ...

Q: Calculate the change in osmolarity and the volume of extracellular and intracellular fluid when a hy...

A: Osmolarity is concentration of active particles in a solution. 

Q: justify why only male mice are used in science research? why not female mice? thank you!

A: Mice are the best organism for tests and are abundantly used for research works. The reason is that ...

Q: 1. A nondisjunction is a rare event during meiotic division wherein the homologous chromosomes fail ...

A: The "cell cycle", also known as "cell division", is a set of processes that occur in a cell leading ...

Q: Describe how limiting factors relate to carrying capacity

A: Introduction Carrying capacity is defined as the average population size of a species in a given hab...

Q: Which of the following statements is NOT correct about the complement? A. The alternative route requ...

A:

Q: How do nucleotides of mRNA chains encode information for the formation of the amino acids sequences ...

A: From the above question we have to explain How do nucleotides of mRNA chains encode information for ...

Q: please describe and explain 3 human epistatic trait.

A: Epistasis It depicts the effect of a gene mutation that is dependent on the presence or absence of m...

Q: Until the Krebs cycle, aerobic respiration can be described without mentioning oxygen, the chemical ...

A: Oxygen is a very important component of aerobic (oxygen-using) respiration that plays a critical rol...

Q: Cholesterol can be packaged into droplets using LDL (low density lipoprotein). Cells that need to ta...

A: Cholesterol can be packaged into droplets using LDL (low density lipoprotein). Cells that need to ta...

Q: 7. Can solutions with the same concentration of different solutes have different osmotic pressures?

A: The composition of the solute has no bearing on the osmotic pressure of a solution; it is solely det...

Q: hat are cyclins and cyclin-dependent kinases for? Describe how do these factors affect cell prolifer...

A: A cell is a basic membrane-bound unit that is frequently referred to as the basic building blocks of...

Q: List these catabolic pathways—fermentation, anaerobic respiration, and aerobic respiration—in order ...

A: Fermentation only produces two ATP per glucose molecule through glycolysis. Anaerobic respiration al...

Q: The absence of ________ leaves obligate anaerobes susceptible to killing by oxygen.   vitamin E supe...

A: * obligate anaerobes means the organisms that can survive in absence of oxygen only. * They depends ...

Q: Pathogen -Splinter Chemical Macrophage signals Fluid Mast cell Capillary Phagocytosis Red blood cell...

A: This is an innate or non specific immune system that response to inflammation on damage tissue.

Q: 1. Sponges 2. Jellyfish 3. Earthworm 4. Clam 5. Starfish 6. Crab 7. Lizard Rear

A:

Q: Why do cyanobacteria possess heterocysts? View Available Hint(s) for Part A       Heterocysts shield...

A: INTRODUCTION Heterocyst This is the site of nitrogen fixation in cyanobacteria.

Q: Create a mind map with the following items as the central topic: Fish scales

A: A scale could be a little rigid plate that grows out of the skin of a fish. The skin of most jawed f...

Q: ative essay about in vitro fertilization and designer babies

A: A pre-implantation genetic diagnostic (PGD) test can be used to check for the presence of a genetic ...

Q: Characterize disturbance, succession, and notions of community change

A: Every living organism interacts with and is dependent on its surroundings in a variety of ways. Each...

Q: Directions: Examine the following statements, then decide which evidence of evolution does it suppor...

A: 1. Vertebrata is a sub-phylum of Chordata that is further defined by their bony backbone. As, chorda...

Oogenesis

The formation of the ovum (mature female gamete) from undifferentiated germ cells is called oogenesis. This process takes place in the ovaries (female gonads). Oogenesis consists of three stages known as the multiplication phase, growth phase, and maturation phase. 

Cell Division

Cell division involves the formation of new daughter cells from the parent cells. It is a part of the cell cycle that takes place in both prokaryotic and eukaryotic organisms. Cell division is required for three main reasons: