a typical human chromosome contains about how many nucleotides in its dna?
Answer:
50 million nucleotide pairs
The typical human chromosome contains 50 million nucleotide pairs
in its DNA.
What is DNA?Deoxyribonucleic acid (DNA) is a polymer composed of two polynucleotide chains that coil around each other to form a double helix carrying genetic instructions for the development, functioning, growth and reproduction of all known organisms and many viruses. DNA and ribonucleic acid (RNA) are nucleic acids. Alongside proteins, lipids and complex carbohydrates (polysaccharides), nucleic acids are one of the four major types of macro molecules that are essential for all known forms of life.
Hence, The typical human chromosome contains 50 million nucleotide pairs.
in its DNA.
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why is dna ligase important for a cell? select all that apply.
Answer:
DNA ligases play an essential role in maintaining genomic integrity by joining breaks in the phosphodiester backbone of DNA.
Explanation:
That's why their important but you didn't list any suggestions so I don't know the exact answer choices but that would've answered the question by itself.
Johnny is drinking a glass of orange juice when he is informed that orange juice is acidic. He begins to panic, thinking his blood will soon turn to acid. Why should he not be worried?
A. Blood contains buffering agents which resist changes in pH.
B. Acids are not absorbed by the blood.
C. The stomach environment is basic, which neutralizes acids.
D. Acids are neutralized by saliva.
Answer:
B
Explanation:
blood only absorbs end products of digested food .
Johnny should not be worried because blood contains buffering agents which resist changes in pH (Option B).
What is blood?The blood is a fluid inside the circulatory system that contain different type of cells (e.g., red blood cells).
The blood served to maintain the internal equilibrium (homeostasis) of the body.The buffers in the blood include different types of proteins, bicarbonate/carbonic acid, and phosphate acid buffers.In conclusion, Johnny should not be worried because blood contains buffering agents which resist changes in pH (Option B).
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11. In the carbon-fixing stage, ATP and NADPH are used to convert CO2 into?
12. What is another name for the Calvin Cycle and why?
Explanation:
G3P
This process is called carbon fixation, because CO2 is “fixed” from its inorganic form into organic molecules. ATP and NADPH, which were made during the light dependent reactions, use their stored energy to convert carbon dioxide into a three-carbon compound called G3P.
Answer:
11. This process is called carbon fixation, because CO2 is “fixed” from its inorganic form into organic molecules. ATP and NADPH, which were made during the light dependent reactions, use their stored energy to convert carbon dioxide into a three-carbon compound called G3P.
12. The Calvin cycle is another name for the light-independent reactions. This is a biosynthetic multi-step reaction that fixes carbon dioxide to ribulose.
which two theories about the formation of the planet's surface features do not include changes in earth's diameter?
A. plate tectonics
B. contracting earth
C. continental earth
D. expanding earth
PLZZSS HELPPPPPPPPPP
Answer:
a
Explanation:
Can someone please help me
Answer:
Q.No1 is the answer
substitution
how are transgenic animals different from knockout animals?
Answer:
A knockout animal has definite inactivated piece of DNA, whereas a transgenic animal usually has an unknown activated piece of DNA.
the origin of a new plant species by hybridization, coupled with accidents during cell division, is an example of
Answer:
An accadental invention?????
Explanation:
What are the options
Please someone help me with this thank you
Answer:
each substance in a mixture keeps most of its characteristic properties
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someone help me with this !!!!
Answer:
For structural support: Nucleic acid.
For energy storage: Lipids or Carbohydrates. ( I'm kinda confused with this one since both do the job )
For membrane and barrier formation: Lipids or Carbohydrates. ( I'm kinda confused with this one since both do the job )
For Catalyst and biological formation: Protine
For Genetic information storage: Nucleic acid.
For Chemical signaling: Lipid.
what is carbon used for in each sphere?
Answer:
Carbon is found in the hydrosphere dissolved in ocean water and lakes. Carbon is used by many organisms to produce shells.
Explanation:
What is the purpose of cell division after fertilization?
Main Points of the Theory of Plate Tectonics
Midocean ridges form at very large large cracks in _______
Molten magma fries through the crack and cools to form new ___________
New Magma from below pushes up, causing the seafloor to ________
Answer:
Midocean ridges form at very large cracks in the ocean.
Molten magma fries through the crack and cools to form new land.
New magma from below pushes up, causing the seafloor to spread (divergent boundary).
Hope this helps
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Have a great day!!!
How do you remove a filter in Excel?
O Clear Filter
O De-Filter
O Cancel Filter
O Halt Filter
Answer:
the answer is cancle filter
Create a hypothesis: Ben wonders if sugar water will help his vine plant grow taller than it would with regular water. He would like to do an experiment. Create an appropriate hypothesis Ben can test using an experiment. *your hypothesis can be anything as long as it is in the correct format and related to the experiment!
PLZ HELP MEEE I NEED ID NOW(((
Answer:
If Ben waters his vine plant with sugar water, then the plant will not grow as well as it would when watered with regular water.
houses nasal conchae to enhance turbulence for filtering air
Answer:
Houses nasal conchae to enhance turbulence for filtering air. larynx. Prevents food and liquid from entering the rest of the respiratory tract.
Explanation:
Houses nasal conchae to enhance turbulence for filtering air through nasal cavity. Hence, the correct option is A.
What is nasal cavity?It is a large air filled space within the nose and is part of the respiratory system. It is lined by an inner thin layer of moist mucous membrane which helps to humidify and filter the air as it is breathed in.
The nasal cavity is divided into two parts-the right and left nasal cavities, separated by a thin bony wall called septum. It is involved in the sense of smell, as small receptors located in the mucous membrane of the nasal cavity are responsible for detecting different odors.
Overall, the nasal cavity is a crucial part of the respiratory system and plays an important role in protecting the body from inhaled irritants, facilitating the sense of smell. Hence, the correct option is A.
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The question is incomplete, but most probably your complete question is,
Houses nasal conchae to enhance turbulence for filtering air:
a) nasal cavity
b) larynx
c) trachea
d) pharynx
I need help with this the 3 blanks where it says answer
Answer:
C will pair with G
then C will pair with G
write G and C
Explanation:
because Adanine(A) always pairs with thymine(T) and cytosine(C) with guanine(G) an easy way to remember this is by Apple Tree and Car Garage.
hope this helps :)
A black chicken and a white chicken are crossed. What is the probability that they will have erminette chicks? ____%
Answer:
0% or 100%
Explanation:
Because when you put it out onto a table you only get the combination black and white so there could be a chance of either
What is the difference between "growth and development" and "evolution"
Answer:
What's the difference between growth and development and evolution?
is that growth is an increase in size, number, value, or strength while evolution is (general) gradual directional change especially one leading to a more advanced or complex form; growth; development.
Explanation:
Hope this helps.
PLZ HELP ASAP(giving 80 points):
2. Write a micro-theme(short paragraph 100-300 words) using and explaining the following terms.
a. "Survival of the fittest"
b. Adaptation
c. Evolution
Answer:
The process through which creatures evolve is known as evolution. Mutations cause genetic variety throughout populations, and the ecosystem works with this diversity to select people who are most suited to their surroundings. Eventually, a species can develop into a plethora of others; as a theory suggests that sapiens started as monkeys but evolved into the humanoid beings that we are today. In biology, adaptation is the procedure where a species fits to its habitat; it is the outcome of natural selection acting on hereditary diversity over numerous generations. Survival the fittest is a saying that suggests the fittest survive, not the weak. This is commonly seen in everyday life, whether with humans, animals, plants, it holds the same meaning. An example would be that a person in better physical and mental health would go farther and live longer than one with weak physical and mental health.
The concept of "survival of the fittest" is a key tenet of evolution, which refers to the idea that individuals with traits that provide them with a competitive advantage in their environment are more likely to survive and reproduce than those without these traits. This process of natural selection leads to the gradual accumulation of beneficial traits in a population, resulting in adaptation and evolution over time.
What is adaptation?Adaptation refers to the process by which organisms develop characteristics that allow them to better survive and reproduce in their environment, such as camouflage or the ability to digest new types of food.
Evolution refers to the broader process of change over time in a population's genetic makeup and physical characteristics, resulting from the interaction between genetic variation, natural selection, and other factors. Together, these concepts help explain how organisms are able to adapt and change over time, resulting in the diversity of life that we see today.
The study of evolution has important implications for understanding the history and development of life on Earth, as well as for addressing modern challenges such as biodiversity loss and climate change.
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Someone help and plz make sure it’s right :) will mark brainiest
Answer:
total # of species
Explanation:
species richness is a number of different species represented in the ecological community landscape or region.
Answer: Species richness is the number of different species represented in an ecological community, landscape or region.
Dose someone know how to do this it’s biology stuff :(
Answer:
yes but it very camplicated and diffricult
Explanation:
which pathway allows for the breakdown of carbohydrates by splitting glucose molecules to form pyruvate?
Answer:
Catabolic pathways
Explanation:
Catabolic pathways release energy by breaking down complex molecules to simpler ones.
For example, in cellular respiration, glucose is being breaking down into CO2, H2O, and ATP.
The pathway for the breakdown of glucose to form pyruvate is called glycolysis
What is catabolism?Catabolism is the metabolic reaction in which large molecules ate broken down into smaller molecules with the release of the energy.
Examples of catabolic reactions include those that break down carbohydrates, lipids and proteins.
The pathway for the breakdown of glucose to form pyruvate is called glycolysis.
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What characteristic do all protozoa display?
autotrophic
immobile
vertebrate
eukaryotic
The characteristic that all protozoans display is their eukaryotic nature. Thus, the correct option for this question is D.
What do you mean by Protozoans?Protozoans may be defined as single-celled microscopic organisms that significantly belong to the kingdom of Protista. These organisms are eukaryotic in nature, and hence they have a true and membrane-bound nucleus in order to function properly.
Some protozoans are definitely attached to the substrate or construct cysts. So, they do not migrate around. But some protozoans have the capability to move around at some stages in their life cycles mostly after the cell division.
So, option B is eliminated. Protozoans are heterotrophic as well. They use organic carbon as a source of energy. So, option A is eliminated.
Therefore, the characteristic that all protozoans display is their eukaryotic nature. Thus, the correct option for this question is D.
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Answer:
immobile
Explanation:
Immobile is correct
Why are non-native, invasive species sometimes problematic for ecosystem stability?
Answer:
The bring problems with them.
Explanation:
For example if you bring a insect from over seas and it gets releast into a farm land it could kill off all the crops.
which tore off scientific statement is defined as a statement of fact that is generally accepted to be true and universal because it has always been observed to be true?
Answer: Law
Explanation:
there is a net movement of water into a cell from the surrounding tissue fluid. is the tissue fluid more or less concentrated than the fluid inside of the cell?
The physical manifestation of a genotype, like blue eyes for bb, is an organism's
phenotype
genotype
codon
dominant allele
Answer:
phenotype plz mark me brailiest
Explanation:
Answer: phenotype :)
Explanation:
lesson 2 unit 3 genetics phenotype – the physical manifestation of a genotype
How does thermal energy impact the lower layers of atmosphere?
Answer:
Explanation:
Land and water absorb most of the solar radiation from the sun. Some of this solar energy from land and water is then transferred to the lower atmosphere which is in contact with the continents and oceans. From Land, this occurs mostly as heat energy or infrared radiation. Water usually transfers this energy through the evaporation of water into the atmosphere
_____ was the first taxonomist to group animals by blood color and plants by size and shape.
Answer:
Linneaus was the first taxonomist to group animals by blood color and plants by size and shape.