Answer:
A
Explanation:
As with DNA replication, partial unwinding of the double helix must occur before transcription can take place, and it is the RNA polymerase enzymes that catalyze this process. ... The DNA molecule re-winds to re-form the double helix. In the first step, transcription, the code in the DNA is copied to a different nucleic acid, RNA. In the second step, translation, the nucleic acid code in RNA is changed into a new form: amino acids. This step is called translation because the nucleic acid language is being "translated" into the protein language.
A high concentration of which substance is indicated by a green coloration of estuarine water?
A.
oxygen
B.
salt
C.
silt
D.
chlorophyll
Answer:
The most important light-absorbing substance in the oceans is chlorophyll, which phytoplankton use to produce carbon by photosynthesis. Due to this green pigment - chlorophyll - phytoplankton preferentially absorb the red and blue portions of the light spectrum (for photosynthesis) and reflect green light.An enzyme that breaks DNA, dispels the tension, and reseals the strand ahead of a DNA replication growing fork is called a(n):
Answer:
Topoisomerase
Explanation:
Topoisomerases are enzymes that produce changes in the topology of the DNA during replication, transcription, traduction, or reparation processes. They can cut one or both strands and in order to relieve torsional stresses in the supercoiled structure of DNA. With this, they help to maintain the chromosome's integrity. There are two types of topoisomerases: topoisomerase I (it cuts only one strand of DNA) and topoisomerase II (it is able to cut both strands of DNA).
14.
A scientist places a cell in a solution, and over time
the cell gains mass and swells. What is the most
likely explanation for the cell's gain in mass?
A. The solution is hypertonic to the cell.
B. The solution is hypotonic to the cell.
C. The solution and the cell have equal
concentrations of solutes.
D. The solution and the cell have equal
concentrations of water.
Ο Α.
B
С
D
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Hyperglycemia (elevated blood sugar levels), such as would happen in diabetics, can damage the glomeruli.
a. True
b. False
Answer:
True
Explanation:
Hyperglycemia which means high Glucose level in the blood as a result of lack of insulin can damage the glomeruli. This interfere with the function of the glomeruli. Normally glomeruli fiters blood and remove nutrients to form urine but hyperglycemia will affect it's negatively and will make protein to leak from the blood into the urine. This can also lead to glomeruli called glomerulosclerosis.
Brendan made a diagram to compare and contrast the benefits of two types of social behavior.
The diagram shows 2 overlapping circles labeled Flocking and Herding. There is a z in Herding.
Which description belongs in the area marked "Z"?
reproduction
protection
foraging
hydrodynamic efficiency
please help this is an exam and its timeddddd
Answer:
Which description belongs in the area marked Z? Protection.
Explanation:
Have a great summer.
Herding is refer to as the act of bringing individual animals together into a group, maintaining the group, and moving the group from place to place or any combination of those. The description belongs in the area marked "Z" is foraging. Thus, the correct option is C.
What is flocking?A flocking is refer to as the large number of birds, especially those gathered together for the purpose of migration. For example, a large number of animals, especially sheep or goats kept together and migrate.
Foraging behavior includes all the methods by which an animal acquires and utilizes sources of energy and nutrients. This also includes the location and resources consumption, as well as their recapture and storage, within the context of the larger community.
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Based on your knowledge of roots and affixes which is most likely definition of the word microscopic?
Explanation:
Microscopy is the science of investigating small objects and structures using a microscope. ... Microscopic means being invisible to the eye unless aided by a microscope.
Why is the burning of fossil fuels, which releases carbon dioxide into atmosphere, a concern to scientists
how does phagocytosis occur in the lungs?
Answer:
Phagocytic defense in the normal lung is shared principally by two kinds of cells - alveolar macrophages that reside on the air surface and roam the alveoli and PMNs that circulate in the intravascular space or are stored transiently in areas adjacent to the capillary-alveolar interface (marginated in capillaries)
Explanation:
mark brainliest pls
g in sickle cell anemia, there is a mutation in the beta subunit of hemoglobin where a glutamic acid is replaced with valine. How would that change affect the molecule
Answer and explanation:
Sickle cell anemia is a type of anemia that occurs because of a mutation in the HBB gene, which codifies for the beta subunit of hemoglobin, producing an abnormal beta-globin called Hemoglobin S o HbS. This anomalous beta subunit is a product of the replacement of the amino acid glutamic acid by the amino acid valine at position 6, resulting in a beta-globin that forms a long and rigid molecule turning red blood cells shape into a sickle one, condemning erythrocytes to a premature death (which will cause the anemia). Another complication patients with sickle cell anemia can have is the blocking of blood vessels because of the abnormal and rigid shape of their red blood cells.
Just like Earth, some of the planets in our solar system are also made of rock. Do you think the rocks on these planets transform?
Answer:
Yes.
Explanation:
Yes, I think the rocks on the planets transform which are closer to the earth such as Mercury, Venus, Earth, and Mars because of high temperature of the planets while on the other hand, the gas giants such as Jupiter, Saturn, Uranus, and Neptune have no transformation of rock due to their lower temperature of the environment as well as the soil so the rocks can't transform from one form to another form of rock.
Which types of waves are also called secondary waves
Answer:
Radio waves
Explanation:
kase mas mababa Ang secondary kesa sa tertiary
What statement best explains the change over the 10 year period?
When O2 binds to heme in hemoglobin, the ion is drawn into the plane of the porphyrin causing a conformational change that is transmitted to adjacent subunits enhancing the for additional O2 binding. Group of answer choices Fe2 ; affinity Mg2 ; folding Mg2 ; planarity Fe3 ; affinity
Answer: Fe2 ; affinity
Explanation:
Hemoglobin is the specialised protein which are present in red blood cells which gives it the ability to carry oxygen to the tissues and return carbondioxide from the tissues to the lungs.
The hemoglobin is made up of
--> a heme group: this consists of a ferrous iron ( Fe2) and a surrounding porphyrin ring.
--> globin.
As the haemoglobin molecule loads and unloads oxygen (O2) the individual globin chains in the hemoglobin molecule move on each other. When oxygen is unloaded the beta chains are pulled apart, permitting entry of the metabolite 2,3-diphosphoglycerate resulting in a lower affinity of the molecule for oxygen and higher affinity for carbondioxide.
Also, when the partial pressure of oxygen (PO2) in the blood is high, the beta chains move close together, O2 binds to heme in hemoglobin, the ion Fe2 is drawn into the plane of the porphyrin causing a conformational change that is transmitted to adjacent subunits enhancing the AFFINITY for additional O2 binding.
how skin contributes to protection
Answer:
Skin has a lot of different functions. It is a stable but flexible outer covering that acts as barrier, protecting your body from harmful things in the outside world such as moisture, the cold and sun rays, as well as germs and toxic substances.
hope this helps
have a good day :)
Explanation:
___________ is a body building food A gram B wheat C Rice D Tea
Answer:
c. Rice
Explanation:
Foods to eat include ( 7 ): Meats, poultry and fish: Sirloin steak, ground beef, pork tenderloin, venison, chicken breast, salmon, tilapia and cod. Dairy: Yogurt, cottage cheese, low-fat milk and cheese. Grains: Bread, cereal, crackers, oatmeal, quinoa, popcorn and rice.
source : https://www.healthline.com/nutrition/bodybuilding-meal-plan#:~:text=Foods%20to%20eat%20include%20(%207,%2C%20quinoa%2C%20popcorn%20and%20rice.
Is this the right answer?
Answer:
Yes!
Explanation:
The sperm does ferbilaise the egg. So its Mendel and Gene
16. Which process has most likely occurred when new traits appear in a species?
Mutations in these genes can produce new or altered traits, resulting in heritable differences (genetic variation) between organisms. ... Evolution occurs when these heritable differences become more common or rare in a population, either non-randomly through natural selection or randomly through genetic drift.
Mutations in genes produce new or altered traits, that leads to heritable differences (genetic variation) between organisms.
What is heredity?Heredity is defined as the sum of all biological processes through which particular characteristics are transmitted from parents to their offspring.
Evolution occurs when these heritable differences become more common in a population, either non randomly through natural selection or randomly through genetic drift.
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A scientist discovers a new organism and is trying to classify it. Which observations would most likely indicate that
the organism is an animal?
It is multicellular and can move itself from place to place,
It is heterotrophic and unicellular.
It makes food from sunlight and is eukaryotic.
It is prokaryotic and can move itself from place to place.
Answer:
B) It is heterotrophic and unicellular.
Hope This Helped!
Answer:
It is multicellular and can move itself from place to place.
Explanation:
i took the test the other answer is wrong
if the parents genotype are as given below:
mother:AA.Bb,CC,Dd,EE,Ff,Gg,HH Father:Aa,BB,CC,Dd,Ee,Ff,Gg,Hh
a) then what is the probability of having a child with the following genotype: AA,BB,CC,DD,Ee,ff,gg,Hh
Answer: a
Explanation:
An Inflammatory response typically includes: Group of answer choices increased activity of phagocytes in an inflamed area inhibiting the release of white blood cells from bone marrow release of substances to decrease the blood supply to an inflamed area reduced permeability of blood vessels to conserve plasma
Answer:
increased activity of phagocytes in an inflamed area
Explanation:
An inflammatory response is the way the body defends itself against attacks by microbes, physical or chemical agents. In other words, this is how organisms defend and inhibit damage from attacks. The inflammatory response allows high phagocyte activities in the inflamed area. Phagocytes are immunity-related cells that attack foreign and invasive substances, bacteria and dead cells.
The common grackle is a species of robin-sized blackbirds that are common (hence the name) over most of the United States. Long tails are dominant to short tails. A female short-tailed grackle mates with a male long-tailed grackle that had one parent with a long tail and one parent with a short tail. Use the genetics vocabulary we went over this school year to complete the following statements. (answer1] percent of the genotype would have the same genotype as the male/father.
Answer:
LL
Ll
ll
Explanation :
have uh good day :)))
what are the two most common alkaline earth metals?
Answer:
CalciumMagnesiumExplanation:
stay safe healthy and happy..g In transcription, the 3'-hydroxyl group of the growing RNA strand: Group of answer choices NONE OF THESE binds to the 5' ribose. attacks the outermost phosphorous group of the incoming nucleotide. ALL OF THESE attacks the 5' hydrogen of the incoming nucleotide. interacts with a positively charged metal ion in the active site.
Answer:
attacks the outermost phosphorous group of the incoming nucleotide.
Explanation:
Transcription is the biological process where RNA is formed. As you may already know, RNA is an extremely important nucleic acid for genetic processes and the production of proteins. The transcription has three steps that are called start, elongation and end. In the elongation phase, the RNA strand is growing, at this time, RNA polymerase, which is the enzyme responsible for RNA elaboration, places the nucleotides, in the RNA strand, in the 5' - 3' direction. This enzyme causes the hydroxyl, which makes up the nucleotide at the 3' end of the forming RNA, to attack the phosphorus present in the incoming ribonucleotide.
How is waste (and the accumulation of it) not only harming wildlife, but ourselves?
Who is your favorite singer and song.....
mine is Selena Gomez, Justin Bieber , Arianna Grande...
btw I am Indian
Match the words in the left column to the appropriate blanks in the sentences on the right. Make certain each sentence is complete before submitting your answer. Words may be used more than once.
1. Excess numbers of these cells cause leukocytosis
2. These formed elements number 4,800 to 10,800 cells/mm3 of blood
3. Granulocytes and agranulocytes are classified as types of these cells
4. Excess of these cells cause polycythemia
5. Type of cell produced in response to erythropoietin
6. Cell fragments that form from the rupture of a megakaryocyte
7. Immature form of this cell is called a reticulocyte
8. Type of cell that is shaped like a biconcave disc
9. Type of cell that averages 5 million cells/mm3 of blood
10. Type of cell fragment involved in hemostasis
Answer:
The correct answer is -
1. Leukocyte is the cell that is present in excessive numbers of these cells cause leukocytosis
2. Leukocyte are normally formed elements number in the range of 4,800 to 10,800 cells/mm3 of blood
3. Granulocytes and agranulocytes are classified as types of Leukocyte cells that plays role in immunity
4. Erythrocyte cause polycythemia if present in excess
5. Erythrocyte is a type of cell produced in response to erythropoietin
6. Platelets are responsible for forming from the rupture of a megakaryocyte
7. reticulocyte Immature form of Erythrocyte
8. Erythrocyte is shaped like a biconcave disc
9. Erythrocyte averages 5 million cells/mm3 of blood
10. Platelet involved in hemostasis
For a majority of humans, one part of the ___ cortex is larger on the ___side of the brain than on the oppposite side.
Identify how the physical barriers of the immune system protect the body against pathogens. Check all that apply.your nose produces oil to keep pathogens from entering the body through your noseskin contains tightly packed cellsskin is tough, flexible, and waterproofyou cough when a pathogen enters your mouthyou sneeze when a pathogen enters your nose
Answer:
Skin contains tightly packed cells.Skin is tough, flexible, and waterproof.You cough when a pathogen enters your mouth.You sneeze when a pathogen enters your nose.Explanation:
The physical barriers of the immune system prevent infections since they stop or expel any pathogen that enters the body. The skin with its cells tightly packed and characteristics, the endothelia, and mucous membrane, like the one in our nose, are physical barriers. They stop antigens from infecting our body since they can remove them by sneezing, coughing, or shedding.
Answer:
skin contains tightly packed cells
skin is tough, flexible, and waterproof
you cough when a pathogen enters your mouth
you sneeze when a pathogen enters your nose
Explanation:
what is not a function of the respiratory system?
A.
Inhaling and exhaling
B.
Removing carbon dioxide
C.
Providing lungs with nutrients
D.
Intaking oxygen
b
Explanation:
I don't know the explanation
ALL organisms, living and non-living, in an ecosystem are made of matter. *
TRUE or FALSE
Answer:
False.
Explanation:
Matter is anything that has mass and takes up space. Therefore, nonliving things such as rocks, glaciers, stars, etc. are made of matter.