Explanation:
Okazaki fragments are short sequences of DNA nucleotides (approximately 150 to 200 base pairs long in eukaryotes) which are synthesized discontinuously and later linked together by the enzyme DNA ligase to create the lagging strand during DNA replication.[1] They were discovered in the 1960s by the Japanese molecular biologists Reiji and Tsuneko Okazaki, along with the help of some of their colleagues
During DNA replication, the double helix is unwound and the complementary strands are separated by the enzyme DNA helicase, creating what is known as the DNA replication fork. Following this fork, DNA primase and DNA polymerase begin to act in order to create a new complementary strand. Because these enzymes can only work in the 5’ to 3’ direction, the two unwound template strands are replicated in different ways.[2] One strand, the leading strand, undergoes a continuous replication process since its template strand has 3’ to 5’ directionality, allowing the polymerase assembling the leading strand to follow the replication fork without interruption. The lagging strand, however, cannot be created in a continuous fashion because its template strand has 5’ to 3’ directionality, which means the polymerase must work backwards from the replication fork. This causes periodic breaks in the process of creating the lagging strand. The primase and polymerase move in the opposite direction of the fork, so the enzymes must repeatedly stop and start again while the DNA helicase breaks the strands apart. Once the fragments are made, DNA ligase connects them into a single, continuous strand.[3] The entire replication process is considered "semi-discontinuous" since one of the new strands is formed continuously and the other is not.[4]
[2]During the 1960s, Reiji and Tsuneko Okazaki conducted experiments involving DNA replication in the bacterium Escherichia coli. Before this time, it was commonly thought that replication was a continuous process for both strands, but the discoveries involving E. coli led to a new model of replication. The scientists found there was a discontinuous replication process by pulse-labeling DNA and observing changes that pointed to non-contiguous replication.
Answer:
but actually hope is going to read all of this
Explanation:
lol
early improvements to microscopes allowed some scientists to view cells and eventually develop what?
19. An ectotherm is also called a a. thermoregulator. b. thermoconformer. c. homeotherm. d. poikilotherm.
Answer:
An ectotherm can also be called a Poikilotherm.
:)
Can someone plz help me? :)
Answer:
D
Explanation:
Solar energy is less expencive as well as its better for the enviroment
Why is it important for cells to be able to
take in nutrients and excrete (remove) waste
products?
Answer:
so that our body won't contain all the bad waste and allow all the good nutrients to help out our body.
The body of an organism utilizes the nutrient and the energy derived from the food.
The digestive system of an organism is accountable for breaking, digesting, absorbing and assimilating food.
The cells in our body perform biochemical reactions in which some of the substances are harmful or fatal to the body cells if gets stashed.
The method by which the excrement from the body is thrown out is called excretion.
So, for the appropriate functioning and for the cell to sustain discarding of wastes is required.
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During which phase of mitosis do the spindle fibers help to pull the
chromosomes to the center of the cell, where they line up?
O A. Metaphase
O B. Prophase
O C. Telophase
O D. Anaphase
how might the shape of a muscle cell be related to its function
Answer: The muscle cells long oval shape helps it reach across to pull on its neighboring cells, while also cimpressing into a circular shape when the fibers contract. This it take up an optimal amount of space while not make the cell bulge in an uncomfortable and awkward way.
Explanation:
Which of the following mutations would be the LEAST likely to have a harmful effect on an organism?
What is something your body does that keeps it from extreme changes?
Answer:
A Rush expert discusses what can happen when your body temperature goes awry, from heatstroke to hot flashes to fever.
Explanation:
hope it helps
what type of a receptor would provide information on lung expansion to respiratory centers in the brainstem?
why is sunlight important for life on earth
Answer:
drives weather, ocean currents, seasons, and climate
Explanation:
The sun has extremely important influences on our planet: It drives weather, ocean currents, seasons, and climate, and makes plant life possible through photosynthesis. Without the sun's heat and light, life on Earth would not exist.
The comparison of two bullets is possible with the comparison microscope. Such a study is made difficult by the fact that:
Answer:
The presence of grit and rust can to some degree alter the markings on bullets fired through the same barrel.
Explanation:
What’s the sun and Estimate to 5/10+4/9?
Answer:
The answer is 17/18
Explanation:
Please take a look at the attached picture for the explanation.
What best explains the relationship between photosynthesis
Оа
The higher the rate of formation of products in respiration, the lower the rate of photosynthesis.
Photosynthesis depends on the carbon dioxide released during cellular respiration.
Ob
О с
C
Cellular respiration depends on the water released during photosynthesis.
C
They have the same set of product molecules,
Answer:
I think it's the last one! "They have the same set of product molecules"
Explanation:
Photosynthesis removes carbon dioxide from the atmosphere, and cellular respiration puts it back. Photosynthesis releases oxygen into the atmosphere, and cellular respiration uses that oxygen to release energy from food.
please help :( How are the steps of cellular respiration different when it is anaerobic respiration?
Answer: HEYYYY also if I’m correct anaerobic respiration doesn’t need oxygen maybe I’m wrong id.k
Explanation:
what two numbers between 10 and 20 have 6 as their GCF
within the oral cavity, both mechanical and chemical ________ begin.
Answer:
digestion
Explanation:
there is no explanation
I’m stuck on this. I’ve asked my teacher 3 times and he just keeps telling me what assignment I’m on. I’m a week behind on work, and I only have a month before new semester. Please help! Instructions
Click the links to open the resources below. These resources will help you complete the assignment. Onc
file(s) and are ready to upload your assignment, click the Add Files button below and select each file from
folder. Upload each file separately.
Bigger beaks are dominant to smaller beaks. If a bird with a large beak (Bb) is blown to an island that requires smaller beaks, what is a possible genotype of its mate needed in order to produce an ospring with a smaller beak?
bb maybe................
Identify and define each of the basic science process skills
Answer:
Explanation:
Science process skills are the things that scientists do when they study and investigate. Observing, classifying, communicating, measuring, inferring and predicting are among the thinking skills used by scientists, teachers and students when doing science.
HELP PLS!!!!!!!!!!!!
Beaches are monitored to protect public health. Waterborne pathogens can cause illnesses. Which of the following is not a common type of pathogen at the beach?
Bacteria
Protozoa
Viruses
Worms
ALL these microorganisms can represent common types of pathogens at the beach. In consequence, it is imperative to take precaution measures to avoid infections.
The sand at the beach may contain dog feces, which is known to transport Toxocara canis, a parasite roundworm able to infect humans.
Moreover, samples of beach sand may also contain different types of pathogenic bacteria (e.g., Staphylococcus species, E. coli, Enterobacteriacea, etc) and viruses (e.g., enteroviruses, hepatitis A, Norwalk viruses, reoviruses, rotaviruses, etc).
In consequence, it is imperative to wash hands with soap and water when touching beach sand that is suspected to be contaminated.
Finally, marine water may also be contaminated with different zoonotic protozoa such as, among others, Giardia, Cryptosporidium and Toxoplasma.
Learn more in:
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Answer:
The correct answer is worms.
Explanation:
Yes, all of these can be found at the beach, but worms are not common. Also, I took the test lol!
A small inflamed elevation filled with bacterial fluid and pus and appear red and cloudy or white is known as a: Select one: a. milia b. pustule c. cystic acne d. seborrhea
Answer:
C. Pustule
Explanation:
Photosynthesis and respiration depend on each other for the exchange of: carbon dioxide and oxygen water and carbon dioxide water and oxygen carbon and oxygen
carbon dioxide and oxygen
I could really use some help so pls be my guest
Answer:
B.
Explanation:
Mitosis produces two diploid (2n) somatic cells that are genetically identical to each other and the original parent cell, whereas meiosis produces four haploid (n) gametes that are genetically unique from each other and the original parent (germ) cell.
Answer:
I already said it is 2 number!!!
where is earth's magnetic north pole?
Answer:
The north magnetic pole is a point on the surface of Earth's Northern Hemisphere at which the planet's magnetic field points vertically downward (in other words, if a magnetic compass needle is allowed to rotate in three dimensions, it will point straight down)
Explanation:
There is only one location where this occurs, near (but distinct from) the geographic north pole. The geomagnetic north pole, a related point, is the pole of an ideal dipole model of the Earth's magnetic field that most closely fits the Earth's actual magnetic field.
The Earth's magnetic pole is situated at west of the Ellesmere Island in northern Canada at the geographical location of 81°18′N 110°48′W.
What is the Earth's magnetic pole?The generation of the Earth's magnetic field occurs deep within the Earth's interior, in a layer which is known as the outer core to be more precise. Here, the convective energy from the slow-moving molten iron is converted to the electrical and magnetic energies.
The north magnetic pole of the Earth moves over time according to the magnetic changes and flux lobe elongation in the Earth's outer core. In the year 2001, it was determined by the Geological Survey of Canada to lie west of the Ellesmere Island in northern Canada at the geographical location of 81°18′N 110°48′W. It was situated at 83°06′N 117°48′W in 2005.
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#SPJ2
1. An is a circulation of a
convection cycle of air.
Answer:
True
Explanation:
How is endosymbiosis a beneficial process?
Answer:
It has deeply impacted the evolution of life and continues to shape the ecology of countless species.
Explanation:
how does a cystoplasm’s structure relate to its function
Which statement is true about DNA base pairing rules?
A- cytosine can pair with guanine only
B- adenine can pair with cytosine only
C- Adenine can pair with thymine or cytosine
D- cytosine can pair with Adenine or guanine
Pioneer species are the first species
to appear after a disturbance. What
is one significant characteristic of
pioneer species?
A. They are not adapted to their surroundings.
B. They are very tolerant of extreme conditions.
C. They are the end product of secondary
succession.
What level of protein should a basketball player in the off-season trying to gain muscle mass consume
Answer: 2.5-3.o grams per body weight
Explanation: