Answer:
DNA is normally found as a loosely contained structure called chromatin within the nucleus, where it is wound up and associated with a variety of histone proteins. When a cell is about to divide, the chromatin coils tightly and condenses to form chromosomes. The result is billions of new cells being created each day.
Explanation:
"DNA is normally found as a loosely contained structure called chromatin within the nucleus, where it is wound up and associated with a variety of histone proteins. When a cell is about to divide, the chromatin coils tightly and condenses to form chromosomes. ... The result is billions of new cells being created each day. " - open . oregonstate . education
The nitrogen bases down the center are held together by
Answer:
Hydrogen Bonds
Explanation:
The nitrogen bases are held together in the center of the molecule by Hydrogen Bonds. The type of sugar found in DNA is Deoxyribose.
Answer:
hydrogen bonds
help I've been having trouble with this one
please help me answer!!
Adenine base pairs with thymine using _________ bonds, and guanine base pairs with cytosine using ________ bonds.
A) two hydrogen, three hydrogen
B) three hydrogen, two hydrogen
C) three phosphoester, two phosphoester
D) two phosphoester, three phosphoester
Adenine base pairs with thymine using two hydrogen and guanine base pairs with cytosine using three hydrogen bonds.
What is DNA?Deoxyribonucleic acid (DNA) is a molecule composed of two strands linked by hydrogen bonds.
In DNA Adenine (A) only pairs with Thymine (T), whereas Guanine (G) pairs with Cytosine (C).
In conclusion, adenine base pairs with thymine using two hydrogen and guanine base pairs with cytosine using three hydrogen bonds.
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Answer:
A) two hydrogen, three hydrogen
Explanation:
Explain an example of how artificial selection can help solve human problems.
Answer:
Artificial selection can help solve human problems since humans can choose the desired traits of an organism to coordinate with their needs.
Explanation:
Since artificial selection is predictable, it is easier for humans to "customize" the traits of an organism to get a desired trait.
Which is NOT a form of electromagnetic radiation?
A.
radio waves
B.
sound waves
C.
x-rays
D.
gamma waves
Answer:
Sound waves
Explanation:
In snapdragon the gene that affects flower color has two alleles: red (R) and white (W). In heterozygous individuals, the phenotype is pink. If two pink flowers were crossed what would be the probability of a pink offspring?
A. 25%
B. 50%
C. 75%
D. 100%
Answer:
The correct answer is - 50%
Explanation:
In the heterozygous condition, there is always one allele of dominant and one allele of recessive present together and during gamete formation, they assort independently. The probability of the pink flower that is RW can be found by punnet square:
R W
R RR RW
W RW WW
here, out of four two cases is of heterozygous or pink flower so the ration would be 2/4 or 1/2 or 50%
PLEASE HELP WITH #2 complete sentences please I will mark brainliest
3. True or false: Science aims to answer TESTABLE claims.
Answer: True
Testable claims, or verifiable claims, are claims where we can prove them true or false. We do so by gathering/observing data, then afterward we see if the data fits the claim or not. If not, then we adjust the claim or we throw it out entirely.
Which of the following best describes the role of ATP in cell repair?
A)
ATP acts like a patch to repair damaged areas.
ATP creates new cells to replace the damaged ones.
C)
ATP directs the enzymes responsible for repairing cells.
D)
ATP supplies energy needed for repairs.
Answer:
D.
Explanation:
ATP is responsible for supplying needed energy for the repairs to occur.
They are a reliable energy source.
Hope this is correct, have a great day.
Prokaryotic cells do not contain many of the organelles that eukaryotic cells have. Prokaryotic cells do have a primitive form of
ribosomes
chloroplasts
mitochondria
Golgi apparati
Answer:
ribosomes
Explanation:
the only common organelle between the eukaryotic and prokaryotic cell
the primitive prokaryotic ribosomes are 70S while the eukaryotic ribosomes are 80s
Name 3 sources of CO2.
Answer:
1. Natural Source
2. Human Source
3. Natural Gas
I don't know if the third one is correct...
Which organelle allows bacteria to stick/adhere to surface or host cells
How many hydroxl groups does psilocybin have?
Answer:
One
Explanation:
What are the possible phenotype(s) for their children? *
A. Hazel eyes
B. Brown eyes
Answer:
hazel eyes are recessive, Brown eyes are dominant. is there a pedigree along with this question?
Explanation:
Please insert an image of a pedigree
hope this helps!
✧◝(⁰▿⁰)◜✧
How is fitness related to genes?
a. Animals with higher fitness have a better chance of
passing their genes on to the next generation.
b Animals with higher fitness make better and more
useful genes.
c Animals with lower fitness have a better chance of
passing their genes on to the next generation.
Need a Hint?
d. Animals with higher fitness use their genes more
efficiently.
Answer:
b
Explanation:
Genes passing to the next and third generation
Where is the active site located on the enzyme?
Answer:
The active site located in a deep tunnel within the enzyme, or between the interfaces of multimeric enzymes.
just do the first one and if you don’t know it don’t answer please this is due today
What cells combine to make the first eukaryotic cell?
Explanation:
Eu" means "true," and eukaryotes have DNA arranged in chromosomes and encased in a nucleus. Fossil evidence indicates that prokaryotic cells first existed on the earth, prior to the arrival of the eukaryotes.
Can someone help♀️ I suck at science.
Answer:
D
Explanation:
If two air masses have the same relative humidity of 60 %, which one contains more water vapor?
a. The one with the higher temperature
b. Both would have the same amount
c. The one with higher relative humidity
d. The one with the lower temperature
b. Both would have the same amount
Option b. Both contain a similar amount.
Given that,
The two masses should have a similar relative humidity of 60%.We need to find out which have more water vapor.Based on the above information, we can say that since both two masses contain the same humidity i.e. 60% so it means that they have the same amount.
Therefore the option b is correct.
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Hello, can someone please help me with this!
Explanation:
Reconstruction was the period in the united states during which the Civil war took place and the laws were made to provide equity to the slaves ending slavery.
The problem arises due to the reunion of the 11 states of the South to the Union which seceded earlier. Slavery was more practised in the Southern states compared to Northern states.
The Republican party did corruption from 1869 to 1877 which allowed due to which they lost their election of 1877.
In 1877, a special electoral commission was established in favour of Hayes and Democrats took benefits of this condition.
When Hayes was selected, he withdrew the federal troops from the South which allowed the Democrats to gain their seats in South and ended Reconstruction.
Which organism is defined as something that lives deep in the ocean in areas with very high temperatures and pressure?
Answer:
shark
Explanation:
Organisms living in the deep ocean must be adapted to survive under extreme pressure, limited light, cold temperatures, and other factors. Organisms living in the deep ocean must survive in a physical environment that is radically different from ocean habitats near the sea surface.
What agent of deposition is this? Gravity,wind, waves, running water or glaciers.
Answer:
Sediment
Explanation
what is the shape of dna in a prokaryotic cell
Why do scientists give species latin names
Someone answer plssss
Answer:
parent cell diploid cells
Explanation:
Answer:
1. mother cell
2. daughter cells
Explanation:
I hope that helps!
_____ is a molecule of oxygen with
_______oxygen atoms instead of 2.
Answer:
Ozone, 3.
Explanation:
Ozone is a molecule of oxygen with 3 oxygen atoms instead of 2 that is present in the atmosphere of the earth. It is a very important gas because this gas filter the solar radiation from ultra violet radiation which causes skin cancer disease. Ozone is present in the stratosphere layer of atmosphere that is present between 15 to 30 kilometer high from the earth surface.
How many atoms of carbon, hydrogen, and oxygen are there in the reactants of photosynthesis?
Answer:
The reactants have one carbon atom, four hydrogen atoms, and four oxygen atoms. IN HYDROGEN ATOMS It takes six atoms of carbon (C) and twelve atoms of hydrogen (H) to make one molecule of glucose (C6H12O6). These atoms come from carbon dioxide (CO2) and water (H2O). IN OXGYEN It takes six atoms of carbon (C), six atoms of oxygen (O) and twelve atoms of hydrogen (H) to make one molecule of glucose (C6H12O6).
In photosynthesis, the reactants have one carbon atom, four hydrogen atoms, and four oxygen atoms.
What do you mean by photosynthesis?Photosynthesis is a process used by plants and other organisms to convert light energy into chemical energy that, through cellular respiration, can later be released to fuel the organism's activities.
Photosynthesis is the process in which light energy is converted to chemical energy in the form of sugars. In a process driven by light energy, glucose molecules (or other sugars) are constructed from water and carbon dioxide, and oxygen is released as a byproduct.
Photosynthesis requires sunlight, carbon dioxide, and water as starting reactants. After the process is complete, photosynthesis releases oxygen and produces carbohydrate molecules, most commonly glucose. These sugar molecules contain the energy that living things need to survive.
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Chemical reactions that happen in the __________ inside chloroplasts
Answer:
chemical bond
Explanation: