Answers
Answer:
A DNA marker
Explanation:
also known as a size standard or a DNA ladder) is loaded into the first well of the gel. The fragments in the marker are of a known length so can be used to help approximate the size of the fragments in the samples.
Related Questions
The diagram below shows the structure of an animal cell.
s
Which number label represents the cell membrane?
0 1
O2
04
06
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Answer:
The cell membrane is label 1.
Explanation:
The cell membrane is a biological membrane that separates the interior of all cells from the outside environment which protects the cell from its environment.
which key process in biology is explained in the diagram above?
Answers
Answer:
ok
Explanation:
Hi I think the answer is bit C but I am not sure
The dew point is the point at which the
water vapor beings to fall out of the air?
True or
False
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Answer:
The dew point is the temperature when water will start to condense out of the air. When air is saturated as much as possible with water vapor it is at the dew point. Air that is holding less vapor than it actually could is below the dew point
Ice Cream is 20*F and Root Beer is 55*F The Ice Cream cools the Root Beer Or The Root Beer melts the Ice Cream
Answers
Cottontail rabbits closely resemble the fall and winter plants in which they hide
Answers
Answer:
In earlier generations, the rabbits that looked most like their surroundings survived and reproduced.
Explanation:
The cotton-tailed rabbits consist of 20 species that are found in America and have stubby tales with white under them. They're distributed over north, central, and southern America. They live in nests called forms, have an average life span of 2 years. Due to their camaflugeous nature, they change their coat color twice every year to protect themselves from predators.difference between parallel venation and reticulate venation
Answers
this is where you can get
The difference between parallel venation and reticulate venation is in parallel venation, the vein of the leaf blade is in a parallel pattern, and in reticulate the vein of the leaf blade is a net or web-like structure.
What is venation?Venation is the pattern of veins present in the leaves. There are different patterns of veins present in the leaves, parallel venation, for example, banana leaf, and reticulate venation, for example, papaya leaf.
Thus, In contrast to reticulate venation, where the vein of the leaf blade is arranged in a net-like pattern, parallel venation has the vein of the leaf blade arranged in a parallel pattern.
Learn more about venation
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A woman has a child and sues a man for child support, claiming that he is the father. She is blood Type A, her child is blood Type O, and the man is blood Type B. The man says that this proves that he is not the father, but the judge in this case says it proves no such thing. Can a child with Type O blood be the father’s child? Prove either the father or the judge correct by using evidence with a punnett square.
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Answer:
If both parents have an O allele, then the child could be O.
Explanation:
If the mom is AO and the dad is BO, there is a 25% chance of having an O child
A O
B AB BO
O AO OO
Yes, it is possible for a couple with mother having blood group A and father blood group B to have a child with blood group O.
Blood group or blood type is the classification of blood on the basis of the antigens present on the surface of red blood cells.
There are four main blood groups or blood types which include A, B, AB and O. Blood group of a person is determined by the genes which they inherit from their parents. Each group can be either RhD positive or RhD negative, which means in total there are eight blood groups present in human beings.
The punnett square for this couple is attached with the answer. Here, the genotype of mother will be AO and the genotype of father will be BO. Here, A and B are dominant on O blood group.
Therefore, it is possible for this couple to have a child with blood group O.
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how long you survive with no food and only water?
Answers
Answer:
These instances include hunger strikes, religious fasts, and other situations. These studies have uncovered several observations about starvation: An article in Archiv Fur Kriminologie states the body can survive for 8 to 21 days without food and water and up to two months if there's access to an adequate water intake.
What is an organism made of? Tell me your first thought!
Answers
Answer:
Your organs are made of tissue
Explanation:
Have a great day
what are some ways in which humans may be influencing the evolution of mankind and other organisms
Answers
outline how the nephrons carry out their processes (4marks)
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What is a chromosome?
O A colorful DNA
O A portion of DNA
O A broken DNA
O A sequence of DNA
O A piece of DNA
O A bundle of DNA
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What is the importance of neutral variation in evolution?
A trait that is neutral in one environment may be advantageous in another.
It is usually removed from the population by natural selection due to its deleterious phenotypes in the environment.
A trait that is neutral will most likely be removed from the gene pool.
It will cause for a population to risk decline and extinction.
Answers
Answer:
A trait that is neutral in one environment may be advantageous in another.
Explanation:
Neutral variation refers to the variation (either genetic or phenotypic variation) which is unaffected by natural selection. Neutral variation is known to increase genetic variation, which is a prerequisite to evolutionary change. An allele may be neutral in one environment and beneficial (or deleterious) in another. In consequence, neutral variation in one environment may increase the response to selection in different environmental conditions.
Si un RNA mensajero (mRNA) esta formado por 700 nucleótidos, ¿puede ser posible que
la cadena peptídica sintetizada tenga tan solo 70 aminoácidos?
Answers
Answer:
Si, esto es posible ya que para llegar a su forma madura el ARN mensajero sufre un procesamiento conocido como empalme alternativo donde su longitud se reduce drásticamente mediante la eliminación de regiones no codificantes (intrones) presentes en el trascripto primario
Explanation:
En células eucariotas, la transcripción refiere al proceso donde un gen es usado como templado para generar un ARN mensajero (ARNm) inmaduro conocido como pre-ARNm, el cual contiene regiones cortas codificantes (exones) y regiones largas no codificantes (intrones). Durante el proceso de empalme alternativo, también conocido como splicing alternativo, este pre-ARNm sufre un procesamiento mediante el cual los intrones son eliminados y los exones son retenidos y empalmados, con lo cual el ARNm maduro final reduce drásticamente su longitud original. En el caso arriba descripto, una proteína con 70 aminoácidos resultaría de la traducción de un ARNm maduro que posee 210 bases nucloetídicas, ya que cada triplete de nucleótidos o 'codón' corresponde a un sólo aminoácido agregado a la cadena polipeptídica durante la síntesis proteica en los ribosomas.
help me please i have 2 mins left (science)
Answers
Answer:
half of the moon's visible surface
<3
Answer:
A: Half of the moon's visible surface
If the universe is expanding, why aren't the stars in the night sky fading away?
Answers
Answer:
This sounds poetic
If this is an actual question the stars are never ending so the more it expands the more it reveals more
If that is the case the stars are beautiful
NEED HELP ASAP PLEASE 20 POINTS
Answers
Answer:
False
False its faster! Hope this helps! More information here! Answer: An area going through secondary succession reaches its climax community faster because the area begins with some soil and some plant and animal species. An area that goes through primary succession, on the other hand, begins with no soil and no organisms, so reaching the climax community takes longer.
Explanation: False its faster! Hope this helps! More information here! Answer: An area going through secondary succession reaches its climax community faster because the area begins with some soil and some plant and animal species. An area that goes through primary succession, on the other hand, begins with no soil and no organisms, so reaching the climax community takes longer.
Which statement about the effects of natural events and human activities is true?
A.The environment is not usually affected by natural events
B.Human activities and natural events can damage the environment.,
C.Natural events always have a positive impact on the environment.,
D.All human activities change the environment in a negative way.
Answers
Answer:
B. Human activities and natural events can damage the environment.,
Explanation:
Human activities are those activities carried out by a human being. The environment is being degraded daily as a result of the activities of man as well as natural occurrences e.g earthquake, tsunami, wild fire etc.
Human activities also called anthropogenic activities that damage the environment include sewage pollution, burning of fossil fuels, oil spillage etc. Hence, according to this question, human activities and natural events can damage the environment.
CUAL ES LA CONCENTRACIÓN DE OXÍGENO EN EL AIRE EN LA PAZ (BOLIVIA) CARTAGENA, Y COLOMBIA
Answers
Answer:
La concentración de oxígeno tanto en La Paz (Bolivia), como en Cartagena y en Colombia es la misma. Lo que se modifica según las alturas a las que se encuentran esas ciudades es la presión del aire, que a mayor altura menor presión. Esto hace que haya menor cantidad de oxígeno disponible para nuestro cuerpo.
Explanation:
Se dice que a 3000 metros sobre el nivel del mar la disponibilidad de oxígeno para el cuerpo humano se reduce en un 30% aproximadamente, y a más 5000 metros al menos al 50%. Esto puede producir hipoxia, o falta de oxígeno en sangre. También se le llama mal de altura o soroche.
La respiración pulmonar se debe a un intercambio de gases y gracias a diferencias de presiones en el aire que inspiramos y en nuestro cuerpo y sangre.
En ciudades como La Paz, que se encuentra a más de 3000 metros sobre el nivel del mar, se suele encontrar en la sangre de las personas una menor saturación de oxígeno que en aquellas que viven en ciudades a altitudes cercanas al nivel del mar.
which of the following would be the best example of adaptive radiation, where a species evolves into different forms and fills different niches
Answers
Answer:
B
Explanation:
I think so
Abby has blue eyes like her father. Where is the trait found? A Genes in the chromosomes in a nucleus Home B Nuclei in a gene in a chromosome C Chromosomes in a gene in cytoplasm D Cytoplasm in a chromosome in a vacuole
Answers
Answer:A
Explanation:lol
3. What causes genetic variation? Select all that apply.
asexual reproduction
crossing
over
mitosis
independent assortment
Answers
Answer:
Crossing over
Independent assortment
Some flowers can only be pollinated by specific insect species.
What will happen if none of these insects are present?
A genetically different seed produced
B genetically identical seed produced
С no seed produced
D only small amounts of seed produced
Answers
Answer:
C no seed produced
Explanation:
Some flowers can only be pollinated by insects. If insects were not present, fertilisation would not be possible. With no fertilisation, no seed will be produced.
If a person wanted to learn more about the genetic material of plant and animal cells, where would they look? A) on the cell wall / B)inside the chloroplasts / C) in the nucleus / D) in the lysosomes
Answers
Answer:
c
Explanation:
for the genetic code is contained in the nucleus.
but this dose not apply to cells without a nucleus e.g. red blood cells...
If a person wanted to learn more about the genetic material of plant and animal cells, where would they look? A) on the cell wall / B)inside the chloroplasts / C) in the nucleus / D) in the lysosomes
Answer: (C in the nucleus)
btw K12 answer i got it right
What fossil fuel fueled the Industrial Revolution?
Answers
Help ASAP!!!! 20 points.
Answers
Answer:
5= mRNA is “messenger” RNA. mRNA is synthesized in the nucleus using the nucleotide sequence of DNA as a template. This process requires nucleotide triphosphates as substrates and is catalyzed by the enzyme RNA polymerase II. The process of making mRNA from DNA is called transcription, and it occurs in the nucleus.
4. What is soil conservation?
Answers
Answer:
The prevention of loss in the most top layer of soil from the erosion or maybe prevention of deducted fertility
how is meiosis different from mitosis
Answers
Answer:
b) meiosis produces four
Explanation:
Mitosis produces two diploids (2n) somatic cells that are genetically identical to each other and the original parent cell, whereas meiosis produces four haploid (n) gametes that are genetically unique from each other and the original parent (germ) cell
Oxygen _____.
breaks down food into energy
is found in healthy bones and teeth
is an organic element
is an important element in DNA
Answers
Answer:
first one
Explanation:
can you help me with my question Which of the themes of Hawthorne's "Dr. Heidegger's Experiment" is illustrated by this passage? Paragraph 36: The most singular effect of their gayety was an impulse to mock the infirmity and decrepitude of which they had so lately been the victims. A. Gayety produces an impulse to mock. B. It is a great release to look back on our problems happily C It is human nature to mock or make light of problems we have been delivered from I need to know as soon as possible
—-PLEASE HELP QUESTION IS IN THE PICTURE—-
Answers
Answer: B is correct
Explanation: