A chromosomes is made up of a chain of_________.
Answers
Answer:
In the nucleus of each cell, the DNA molecule is packaged into thread-like structures called chromosomes. Each chromosome is made up of DNA tightly coiled many times around proteins called histones that support its structure. ... DNA and histone proteins are packaged into structures called chromosomes.
I had to take a screen shot to answer it wouldn't let me other wise.
Related Questions
Select the correct answer.
Which degree of latitude designates the position of the equator?
A.
0
B.
45
C.
90
D.
120
Answers
Answer:
A
Explanation:
Water cycle -
When water is removed from the soil and subsurface
water flows via roots to be used by the plant. Most of
the water that plants uptake passes though into the
atmosphere.
Answers
Answer:
This is the process of transpiration because it has to do with plants!
For the below image label the 13.polar area and 14. Non polar area on the diagram
Answers
Answer:
http://images.pcmac.org/SiSFiles/Schools/AL/MobileCounty/CauseyMiddle/Uploads/DocumentsCategories/Documents/NBp10_Cell_Transport_-_Amoeba_Sisters_%7BSIS5384FB64E650%7D.pdf
use this link, you will find the answer
Explanation:
Using data from seismic waves, geologists have learned that Earth’s interior is made up of several
a.
continents.
b.
layers.
c.
ridges.
d.
trenches.
Please select the best answer from the choices provided
A
B
C
D
Answers
Only 3% if the water ib Earth us freshwater. About 2/3rds of that water is not available for
humans use because ..
Answers
Answer: 2/3 of the water is not availible for human use because it is salt water not fresh.
Explanation:
HELP BRAINLIEST
Why are formation and decay considered a cycle of nature?
Answers
The formation and decay is considered a cycle of nature due to the governance of nature.
Why are formation and decay considered a cycle of nature?
The formation and decay is considered a cycle of nature because this process is controlled by natural forces of the environment. Nature provides the environment for the formation and decay processes.
So we can conclude that the formation and decay is considered a cycle of nature due to the governance of nature.
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sooooooooooooooooooo
Answers
Sooooo can some body solve this if ur smart:
:)
Q1. (2 ²∕⁵ x 3 ¹∕⁸) x 3¹∕⁵ ÷ 3¹ also : Q2. A shopkeeper has 12 dozen eggs he sold 2/3 (two upon three) of the eggs everyday Find the total number of eggs he sold and how many eggs were left?
answer for Q1) 8
answer for Q2) 216 eggs per day you find the other answer and show the step by step for both questions.
what is the function of an interface neuron
Answers
Answer:
del sofa te solisita que pagues. solo las 3/4 partes de su valor y sobre esa cantidad te dan un 10% de descuento extra cuanto pagarias al final
Explanation:
del sofa te solisita que pagues. solo las 3/4 partes de su valor y sobre esa cantidad te dan un 10% de descuento extra cuanto pagarias al final kaka pro
<45 points!>
The diagram shows a 1.5 kilogram kitten jumping from the top of a 1.80 meter high refrigerator to a 0.90 meter high counter.
Calculate the GPE of the cat on the top of the refrigerator AND on top of the counter. Be sure to include units of measurement for EACH answer.
Answers
Answer:
https://brainly.com/question/17399583
Explanation:
The warmer the environment is and the closer an environment is to the equator, the higher the biodiversity of the environment. Based on
these observations, which of these environments has the greatest biodiversity?
A. tundra
B. desert
c. tropical rainforest
D. grasslands
Answers
An earthworm helps to break up soil so that the roots of plants may receive oxygen. This enriches the soil and provides food for other organisms. What do these characteristics describe about the earthworm?
Answers
the answer is its niche
this is because a niche refers to the position or function that an organism occupies within its environment among other species of plants and animals.
hope this helped xoxo
Explain how an individual DNA mutation can become an adaptation in a population
Answers
Answer:
Explanation: Genetic variations that alter gene activity or protein function can introduce different traits in an organism. ... Over time, as generations of individuals with the trait continue to reproduce, the advantageous trait becomes increasingly common in a population, making the population different than an ancestral one.
Answer:
Due to the process of natural selection they gene can be matched and shown I need the offspring.
Explanation:
What will occur if a species is divided into two groups and allowed to reproduce in different environments for many generations?
Answers
Answer:
The original species will diverge into two new species. It will occur speciation. It will occur some sort of allopatric speciation.
Explanation:
When the original species is divided and placed under different environments, where they can reproduce for many generations, many changes or mutations will occur in each group. These changes will depend on each group´s environment and its ecological pressures and will lead to divergence. Pressures act on individuals and make them adapt to the new environmental conditions. Generation after generation, the genotype of individuals will increase the fitness to survive and reproduce. The fixation of mutations will increase the difference among both groups, up to the diverging point into two new species.
The biological concept of species states that individuals of the same species can reproduce because they have a genetic reservoir in common: many genetic variants.
Genetic variability is the measure of a species organism´s tendency to differentiate. In genetic variability, individuals of the same species are not identical. They are recognizable as members of the same species, but they differ in shape, function, and behavior. There exist variations among individuals of the same species.
Genetic variability originates from mutations, recombinations, and karyotype alterations. It allows or makes possible evolution.
Allopatric speciation consists of the geographic separation of a continuous genetic background giving place to two or more new geographically isolated populations. These separations might be due to migration, extinction of geographically intermediate populations, or geological events. In this speciation, some barriers impede genetic interchange, or genetic flux, as the two new populations that are separated can not get together and mate anymore. These barriers might be geographical or ecological.
The process of allopatric speciation involves different steps:
• The emergence of the barrier.
• Interruption in the genetic interchange
• The occurrence of new mutations and their accumulation in time in each population. Slow and gradual differentiation.
• Genetic divergence by natural selection and reproductive isolation makes it impossible for the two groups to mate even if the barrier disappears.
• Prezigotic isolation mechanisms favored by selection once occurs a secondary contact between the new species in formation.
Answer:
divergence, potentially giving rise to two different species
a part of an mRNA has a sequence AAA. which amino acid is coded by AAA?
Answers
Answer:
yes by AAG
We can group the given mRNA molecule into codons. mRNA sequence = AUG-AAA-UAC. amino acid sequence = Met - Lys - Tyr. Conclusion ...
Scientific Discoveries
3. An important clue to the structure of DNA was provided by
A. a protein analysis of a muscle cell.
B. an X-ray diffraction photograph of DNA.
C. an MRI image of a brain cell.
D. a microscopic examination of a fruit fly.
Check Answer
Answers
Answer:
B
Explanation:
I got it right :D
An important clue to the structure of DNA was provided by an X-ray diffraction photograph of DNA. Thus, the correct option is B.
What is X-ray diffraction?X-ray diffraction (XRD) is a widely used technique to assess the crystallinity and structure of the solid samples such as biomolecules like DNA and proteins. The crystal X-ray diffraction phenomenon results from the scattering process in which the X-rays are scattered by the electrons of the atoms which are present in the sample without any change in the wavelength.
Rosalind Franklin's X-ray diffraction method patterns of the DNA molecules rendered the important clue from which DNA has the structure of a double helical structure. The most famous X-ray photograph, the Photo 51 is still printed in most of the Biology textbooks.
Therefore, the correct option is B.
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PLEASE HELP I WILL MARK BRAINALIST
Answers
Answer:
I think d
Explanation: it makes sense
Answer:
no it is A
Explanation:
will a point mutation or a frameshift mutation have a larger impact on the protein coded for by the DNA?
Answers
Answer:
frameshift mutation (i think)
Explanation:
because it messes up the whole strand by deleting or inserting a base. honestly not 100% sure so take this with a grain of salt lol
WILL GIVE BRAINLIEST
Which of the following lifestyle modifications is NOT likely to be helpful in controlling genetically linked diseases?
A) taking a healthier diet
B) exercising regularly
C) maintaining a proper weight
D) planning to quit smoking at 40
E) regulary having medical check ups
Answers
Answer:
E) regularly having medical exams
Explanation:
Hope this helps!!
Answer:
D) Planning to quit smoking at 40
Explanation:
What is point mutation?
what is silent mutation?
what is misssense mutation?
What is nonsense mutation?what is chromosomal mutation?
what is frameshift mutation?what is duplication?
what is insertion?
what is gene mutation?
what is deletion?
Answers
silent mutation : Silent mutations are mutations in DNA that do not have an observable effect on the organism's phenotype.
missense mutation : In genetics, a missense mutation is a point mutation in which a single nucleotide change results in a codon that codes for a different amino acid
nonsense mutation : a mutation in which a sense codon that corresponds to one of the twenty amino acids specified by the genetic code is changed to a chain-terminating codon.
chromosomal mutation : Chromosome mutation is the process of change that results in rearranged chromosome parts, abnormal numbers of individual chromosomes, or abnormal numbers of chromosome sets.
frameshift mutation : A frameshift mutation is a genetic mutation caused by indels of a number of nucleotides in a DNA sequence that is not divisible by three
duplication : Duplication is a type of mutation that involves the production of one or more copies of a gene or region of a chromosome
insertion : In genetics, an insertion (also called an insertion mutation) is the addition of one or more nucleotide base pairs into a DNA sequence. This can often happen in microsatellite regions due to the DNA polymerase slipping.
gene mutation : A gene mutation is a permanent alteration in the DNA sequence that makes up a gene, such that the sequence differs from what is found in most people.
deletion : Deletion is a type of mutation involving the loss of genetic material. It can be small, involving a single missing DNA base pair, or large, involving a piece of a chromosome.
could be wrong on some , hope this helps tho !
Answer:
Explanation:
A point (substition) mutation is when one base is substituted for another. A silent mutation is a type of point mutation. It is when one base is substituted for another but the amino acid does not change. The new codon that is made from the substitution still codes for the same amino acid as the original codon was suppose to. The protein made is still functional. A missense mutation is also a type of point mutation. It is when a one base is substituted for another causing the amino acid to change. It creates a nonfunctional, truncated protein. A nonsense mutation is the last kind of point mutation. It is when one base is substituted for another and the new codon made codes for a STOP amino acid. This makes a nonfunctional, truncated protein. A frame shift mutation is when the entire reading frame if the DNA sequence is changed. The two types of frame shift mutations are deletion and insertion. Deletion is when one nucleotide is taken away, or deleted from the DNA sequence. This will make a nonfunctional protein. Insertion is when a nucleotide is added to the DNA sequence. It makes a nonfunctional protein. Missense and nonsense mutations can also be frameshift mutations, but never silent. A chromosomal mutation occurs when the sister chromatids or homologous chromosomes fail to separate. Duplication is a type of chromosomal mutation where one chromosome have two copies of a gene or genes and the other no copies.
If all cells in your body contain the same set of DNA, why is it that some cells become muscles calls, some become skin, or nerve cells?
Answers
Answer:
This is due to CELL DIFFERENTIATION
Explanation:
All living cells are made up of the genetic material called DNA, which are exactly of the same sequence across all cells. However, the cells that contain the same DNA sequence are different in function.
This is as a result of a process called CELL DIFFERENTIATION, which is the process whereby cells specialize or become specific in function as a result of the expresssion or not of certain genes in the DNA sequence of each cell. In other words, cells might contain same DNA sequence but the genes are not all expressed at the same time, leading to the different function. Therefore, some cells become muscle cells, skin, or nerve cells with different functions.
What is the probability of a child having type AB blood if one of her parents is heterozygous for A blood and the other is heterozygous for B?
Answers
Answer:
25% chance
Explanation:
Well if you make a cross, you put in AO and BO
A O
B AB BO
O AO OO
I hope this helps!
Answer:
25%
Explanation:
At which part of the cell are electrical signals transmitted between nerve cells?
soma
axon
myelin sheath
dendrite
Answers
Dendrite is regarded as the part of the cell in which electrical signals are
transmitted between nerve cells.
Dendrites receive signals or communication from other cells and help to
transport the electrochemical charge from other neurons to the cell body or
axons which conduct them to the central nervous system for processing.
Dendrites have also been found to release neurotransmitters which makes
their study more complex and diverse.
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What is the resistance of a circuit with a voltage of 10 volts (V) and a current of 5 amps (A)? Use Ohm’s law to calculate the resistance.
The resistance of a circuit with a voltage of 10 V and current of 5 A is
ohms.
Answers
Answer: R = 2 ohm
Explanation: Based on the Ohm's law
U = R*I ---> R = U / I
R = 10 / 5
R = 2 ohm
Answer:
Answer : The resistance of a circuit is 2 ohm.
Explanation:
Using Ohm's law :
Or,
where,
R = resistance of a circuit = ?
V = voltage of circuit = 10 volts = 10V
I = current flowing in a circuit = 5 A
Now put all the given values in the above formula, we get the resistance of circuit.
Therefore, the resistance of a circuit is 2 ohm.
How can ecosystems benefit from wildfires
Answers
Answer:
Fires often remove alien plants that compete with native species for nutrients and space, and remove undergrowth, which allows sunlight to reach the forest floor, thereby supporting the growth of native species. ... Overall, fire is a catalyst for promoting biological diversity and healthy ecosystems.
Explanation:
Even though the ostrich is a flightless bird, ostriches still possess wings that stretch approximately two meters across when fully
extended
Scientists speculate that when dinosaurs became extinct some of the birds that lived during that time became land dwellers since
they were able to consume the food that the dinosaurs once ate. Over time, these species grew larger and heavier. Eventually, the
ostrich species became too big to fly.
The wings found on ostriches are known as
OA. analogous structures.
OB. symmetrical structures.
OC. homologous structures
OD. vestigial structures
Answers
Answer: D. Vestigial Structures
Explanation:
Astronomers believe
was
the sun
originally a part of Earth.
C. Jupiter
d. Mars
b.
the moon
Answers
Answer:
the moon as I knew; but am not sure yet
Urgent!! Why is it important to make exact copies of cells?
Answers
Answer:
Producing exact copies ensures that when a cell divides, the offspring cells will receive the same genetic information as the parent cell. cancer can result when errors in the replication of DNA in genes that control how a cell divides.
Explanation:
hope this helps...
have a nice day
1. How did Aristotle classify organisms, and why did
his method prove inadequate?
Answers
what do you mean by sick?
Answers
Answer:
Sick usually means physically ill, but it can sometimes be used to mean mentally ill. He's very sick. He needs medication. She found herself with two small children, a sick husband, and no money.
Explanation:
can I get brainlist
Answer:
Sick usually means physically ill, but it can sometimes be used to mean mentally ill. He's very sick. He needs medication. She found herself with two small children, a sick husband, and no money. He was not evil, but he was sick.
Which statement describes transform boundaries?
O Rift valleys are formed.
O Mountains are created.
O Faults form in the lithosphere.
Plates move toward each other.
Answers
Transform boundaries are described as faults that emerge in the lithosphere. So, the correct option is C.
What are Transform boundaries?Transform boundaries, which are often referred to as conservative plate boundaries, are places where two tectonic plates move past one another while moving in opposite directions along a fault in the Earth's crust.
Transform borders happen when two tectonic plates move past one another horizontally via a lithosphere fault. As a result of this movement, rocks may break and slide along the fault, resulting in earthquakes. Transform borders do not include the creation or destruction of crustal material, unlike divergent boundaries where rift valleys are formed or convergent boundaries where mountains are built when plates move towards one another.
Therefore, the correct option is C.
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