Answer: DNA Ligase
Explanation:
During DNA replication, both the parental DNA strands are separated and act as templates for the synthesis of new strands. The formation of the new strands occurs in only 5'-3' direction and thus both the strands are synthesized in a different manner. One new strand with the template of 3'-5' direction will be synthesized continuously and is called a leading strand. The other strand with the template of 5'-3' direction will be synthesized discontinuously in the form of DNA fragments. These fragments are called Okazaki fragments and the strand is called a lagging strand. DNA ligase connects these fragments later to form a continuous lagging strand.
Therefore, DNA ligase is required for ligation of Okazaki fragments, and in absence of DNA ligase, the ligation of fragments will not occur and the newly synthesized strand will be discontinuous. However, if DNA ligase is not present in the reaction mixture, then the chances are that not all the newly synthesized DNA strands will be discontinuous. Only the DNA molecule with the lagging strand will be in the form of fragments.
People with albinism have a defect in tyrosinase, an oxidase that helps to control skin pigment production. In what epidermal layer is tyrosinase active
Stratum basale is the epidermal layer in which the enzyme tyrosinase is active.
What is Albinism?This is an inherited disorder which is characterized by insufficient melanin production in the body.
The enzyme known as tyrosinase facilitates melanin production in the epidermal layer known as Stratum basale.
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Which statement correctly compares the "Analysis" and "Conclusion" sections of a lab report?
O Only the "Conclusion" section describes errors that occurred during the experiment, and only the "Analysis" section
suggests further research.
O Only the "Analysis" section includes specific data comparisons, and only the "Conclusion" section suggests further
research.
Only the "Analysis" section discusses whether the original hypothesis was supported, and both sections include
graphs of data.
Only the "Conclusion" section discusses whether the original hypothesis was supported, and both sections suggest
further research.
Answer:
Only the "Analysis" section includes specific data comparisons, and only the "Conclusion" section suggests further
Answer:
the answer is O Only the "Analysis" section includes specific data comparisons, and only the "Conclusion" section suggests further
research.
Explanation:
The sport of American football has come under fire since some professional players have reported head injuries that have led to severe disabilities or even death. Football is very popular in the United States, so the ramifications of such findings are troubling for coaches, players, and fans. Researchers are studying the physical effects of head injuries, how to treat them, and how to prevent them in the first place. If you or someone you care about participates in a sport in which head injuries are common, where would you look for reliable information about the symptoms of a head injury and what to do about it?
In a sport where head injuries are common, it is necessary to seek reliable information about the symptoms of a head injury from a neurologist.
What are the dangers of American football?Considered a high-impact sport due to the constant contact and high rate of orthopedic trauma to players during training and games, traumatic shocks to the head and spine have always been the most worrying problems because they put in check vital parts of the athletes' body.
With this information, we can conclude that in a sport where head injuries are common, it is necessary to seek reliable information about the symptoms of a head injury from a neurologist.
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Please answer please
Answer:answer is carbon dioxide bud
Explanation:
what characteristics make pteridophyta different from seed bearing plants
Differences Between Pteridophytes and Seed Plants
Pteridophytes don't produce cones, flowers, or fruit, unlike these seed plants. Instead, Pteridophytes produce spores. Spores are living, single-celled structures that are essential to the life cycle of many plants.
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What are the advantages and disadvantages of humoral
response ?
Please help thank you
The immune response involving the transformation of B - cells into plasma cells that produce and secrete antibodies to a specific antigen. It develops in bone marrow.
Advantages of Humoral response
Humoral immunity develops quickly than cell mediated immunity.Extracellular microorganisms and there poisons are targeted by humoral immunity.Humoral immunity is considered to play an important role in MS pathogenesis.Disadvantages of Humoral response
humoral immunity involves a set of molecular components and processes that differ from cell-mediated immunity.Requires expensive robotics for printing arrays.Learn more about Humoral immunity here:
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Why do scientist use scientific names to refer to organisms
a: common names are too complicated for scientist to remember
b:similar organisms in different areas sometimes have the same common name
c:using scientific names ensures that non-scientists do not have access to useful information about organisms
d: the scientific name tells the reader what domain the organism belongs to
Explanation:
Similar organisms sometimes in different areas have diffetent common names.
The cumulative work of many scientists can often be summarized as theories or laws. how is a theory different from a law
Answer:
A law is something in science that can be proved through experimenting. When the experiment is done properly, the same outcome will be achieved every time. A law does not attempt to explain why something is the way it is, it only states it.
A theory is an idea that has a large amount of scientific data backing it and is the accepted answer by most scientists, but there is no way to experiment on a scientific theory. A theory will never be able to become a law. A theory explains what it is describing.
Palliative radiation treatment may: Group of answer choices remove the tumor. divide the tumor. shrink the tumor. enlarge the tumor.
Explanation:
Radiotherapy to relieve symptoms is also known as palliative radiotherapy. Palliative radiotherapy aims to shrink cancer, slow down its growth or control symptoms. It doesn't aim to cure cancer.
A protein which has many sulfhydryl (-sh) groups may exhibit, _______ a type of bonding providing tertiary structure?
A protein which has many sulfhydryl (-sh) groups may exhibit disulfide bridges tertiary structure.
What are disulfide bonds?A disulfide bond is a covalent bond between two atoms of two (cysteine side chains). Large polypeptide chains (more than 200 amino acids) fold and form domains.
Some proteins have disulfide bridges, which are inter-chain interconnections or between parts of a chain, formed by the oxidation of cysteine radicals. Intracellular proteins generally lack disulfide bonds, while extracellular proteins often do.
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A student made a model of a cell. First, she filled a clear plastic bag with gelatin.
Then, she added a rubber ball.
What are two limitations of the student's cell model?
A. The model is not as easy to see and hold as a real cell is.
B. The model does not show that cells can contain smaller structures inside
them.
C.The model does not show how a real cell gets the energy it needs to live.
D.The model is made up of materials that are different from those found in
real cells.
5. The burning of fossil fuels has increased the carbon dioxide content of the
atmosphere. What is a possible effect that the increased amount of carbon
dioxide is likely to have on our planet? (SC.6.E.7.9; SC.E.6.7.6)
a. A warmer climate
b. A cooler climate
c. Lower relative humidity
d. More ozone in the atmosphere
Answer:
A
Explanation:
As the ozone breaks down from greenhouse gases, a blanket is formed, heating up the climate (thus causing what we see as global warming).
Answer:
A
Explanation:
Carbon traps heat inside the earth
Where does bone formation occur during endochondral ossification?.
Answer:
Endochondral ossification is the process of bone formation in which cartilage scaffolds, arranged in zones, are gradually replaced by bone. It occurs at the articular/epiphyseal and metaphyseal growth plates and at secondary centers of ossification, such as the carpal and tarsal bones.
Explanation:
Trust me i'm smart
Describe one specific way that HIV makes the body unable to deal with other pathogens and cancer.
By weakening the immune system, HIV makes a person prone to other pathogens as well as cancer.
What is HIV?The term HIV stands for the human immune virus. It is a virus that attacks and weakens the immune system of a person thereby making the person very much vulnerable to pathogens.
Thus, by weakening the immune system, HIV makes a person prone to other pathogens as well as cancer.
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How are alleles for the same gene related?
OA. They have the same genetic sequence but are found in different
individuals.
B. They have different genetic sequences but are found in the same
location on a chromosome.
OC. They have the same genetic sequence but are found on different
chromosomes.
D. They have different genetic sequences and are found on different
chromosomes.
Answer:I think it might be C
Explanation:
without a gallbladder, a person would be unable to produce bile by __________.
Answer:
its false
Explanation:
edge 2023
How does the frequency of a wave relate to the energy of the wave?
Answer:
the higher the frequency and the higher amplitude, the more energy there is.
Explanation:
waves carry energy uh The higher the frequency, the shorter the wavelength. The relationship between wavelength and frequency is called an inverse relationship, because as the frequency increases, the wavelength decreases.
If phosphorous has 5 valence electrons, how many does sulfur have?
Which of the following groups of organisms contains a cell wall?
1. Plantae
11. Animalia
Ill. Fungi
IV. Eubacteria
O A. I, I1, IlI, IV
O B. 1, 11, IM
O C. I1, Ill
O D. I, Ill, IV
A cell wall is present in the kingdoms Archaebacteria , Eubacteriaand Fungi
The groups of organisms containing a cell wall are Plantae, Fungi, and Eubacteria. The correct option is D. I, Ill, IV.
What is a cell wall?A cell is the outer covering of the cell, which provides protection and rigidity to the cell. It is made up of lipid and triglyceride or cellulose. The cell wall is presenting many cells, like plant cells, fungi, and bacteria cells.
The cell wall is made up of different substances in different animals. Plant cells have a cell wall that surrounds their plasma membrane and offers tensile strength as well as defense against osmotic and mechanical stress. Additionally, it enables the development of turgor pressure or the pressure of the contents of the cell against the cell wall.
Thus, the correct option is D. I, Ill, IV.
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How is meiosis different from mitosis.
Answer:
the answer is b
Explanation:
at the end of meiosis, each gamite has two full sets of chromosones
What does oxygen poor blood deliver to the
lungs?
A. carbon dioxide
B. glucose
C. water
D. ATP
Answer:
A.carbon dioxide
Explanation:
oxygen poor blood means the blood is rich with Carbon dioxide
The oxygen poor blood delivers to the lungs carbon dioxide out of the body organs and cells. Thus, the correct option is A.
What is oxygen poor blood?The heart is divided into two separate pumping systems, which include the right side and the left side. The right side of the heart receives oxygen-poor blood that is deoxygenated blood from the veins and pumps it to the lungs, where the blood picks up oxygen gas from the alveoli and gets rid of carbon dioxide gas.
Deoxygenated blood has less oxygen or it is oxygen-poor and contains is carbon dioxide rich. The right heart pumps this deoxygenated blood to the lungs where it picks up additional oxygen gas.
As the blood travels through body, oxygen gas is used up, and the blood becomes oxygen poor or carbon dioxide rich. Oxygen-poor blood returns from the body to the heart by the superior vena cava and the inferior vena cava, the two main veins which bring blood back to the heart.
Therefore, the correct option is A.
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erosion and deposition act to make the landscape smoother. If 4.5 billion years of erosion and deposition have occured, why isn't the Earth's surface more level?
Answer: Because, if there was erosion, the earth could not get in touch with inner land, so erosion can happen on coastlines, rivers, canyons, or any thing that has a body of water.
Explanation:
which one is a organic molecule .
option c is the right answer please mark me as brainlist
Answer:
Ch4 is a organic molecule.
Which of the following is NOT an advantage of having a glycocalyx (capsule or slime layer) for bacteria?a) Protects from phagocytosis.b) Allows bacteria to move through the environment.c) Allows bacteria to adhere to surfaces.d) Can serve as a nutrient/energy reserve.e) Protects from desiccation/dehydration.
What law of energy can be applied to food processing?
The first law of energy can be applied in food processing whereby foods are converted from one form to another.
What is food processing?Food processing is the process by which food is converted from its natural state obtained from plants to a more edible and palatable state for consumption by humans.
The first law of energy states that energy cannot be created nor destroyed but can be converted to other forms.
Therefore, the first law of energy can be applied in food processing whereby foods are converted from one form to another.
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The extraction of DNA is a common procedure in biotechnology research laboratories. Research the methods of extracting DNA in biotechnology facilities. Describe how the extraction methods used in this lesson compare to those of research laboratories.
The DNA extraction employed in research laboratories are more advanced than those in the lesson since high quality DNA is required in research laboratories.
What are DNA extraction methods?DNA extraction methods are the methods employed in the extraction of DNA from living cells.
Some DNA extraction methods include:
Phenol-chloroform isoamyl alcohol,Proteinase K,CTAB method,Spin column-based methods, andMagnetic bead-based techniqueThe different DNA extraction methods employed depends on the type of sample and the purity and quality of DNA required.
Therefore, the DNA extraction employed in research laboratories are more advanced than those in the lesson since high quality DNA is required in research laboratories.
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correct order of steps for cleaning and sanitizing
Answer:
D.
Explanation:
soak in warm water, scrape up food clean with sanitizer rinse and towel dry
Why because,
Soaking will enable leftovers to remove with ease
So first soak in lukewarm water
Human development may change depending upon the environment. This is because development is
Answer:
This is because development is dynamic process.
genetic drift simulation:
When you look at your chart, what did you notice about the fluctuations? What would you expect to see over time? were you ever close to losing an allele?
Answer:
yes
Explanation:
The consequences of genetic drift are numerous. It leads to random changes in allele frequencies. Drift causes fixation of alleles through the loss of alleles or genotypes. Drift can lead to the fixation or loss of entire genotypes in clonal (asexual) organisms
1. Which plant tissue provides both mechanical strength as well as flexibility?
2. what chemical substance is deposited in the secondary wall of sclerenchyma?
3. What is crenation?
4. which structure is also called "Little nucleus"?
Answer:
1 collenchyma provides both mechanical strength as well as flexibility
Answer:
1)Collenchyma provides both mechanical strength as well
as flexibility.
2)Lignin is the chemical substance deposited in the wall of
sclerenchyma.
3) crenation describes an object's shape, especially a leaf or
describes an object's shape, especially a leaf orshell, as being round-toothed or having a scalloped edge
4)Nucleolus