Answer:
Astrosclereids are star-shaped, having various branches or arms. They are found in intercellular spaces of leaves and stems of many hydrophytes like Nymphaea.
What is gel electrophoresis used for? Select all that apply.
O A) It is used to sort DNA strands.
B) It is used to produce more DNA strands.
C) It is used to measure DNA strands.
D) It is used to break down DNA molecules.
Answer:
used to separate mixtures of DNA, RNA, or proteins according to molecular size
Gel electrophoresis is used for the separation of genetic material present in the cell such as DNA, RNA and even proteins. Thus, the correct option is A.
What is Gel electrophoresis?Gel electrophoresis is a technique which is used to separate the genetic material such as DNA fragments, RNA and proteins on the basis of their size and charge. Gel Electrophoresis involves running an electric current through a gel containing the molecules of interest in it.
The principle of Gel electrophoresis is that the DNA or protein sample to be separated is loaded on to a porous gel placed in an ionic buffer. On the application of electric charge, each of the molecules having different size and charge will move through the gel at different speeds and therefore separates out.
Therefore, the correct option is A.
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Which of the following pays a fixed rate of return
Answer:
Reinvestment of coupon payments
Please Help!
Q. Explain the purpose of DNA and RNA.
Answer:
DNA is the structure that defines your genetic characteristics while RNA are proteinous substances that act as messengers to carry information to and from the nucleus of the cells.
Which side is hypertonic ? A or B ?
Which side will gain water
What is c ?
Answer:
1-b
2-b
3-phospholipid bilayer
B side is hypertonic. It will gain water. C is Phospholipid layer.
What is Hypotonic Solution?
A hypotonic solution is a type of solution that has a lower osmotic pressure than any other solution to which it is compared. It is a solution in which a small amount of solute passes across a semipermeable membrane compared to the amount of solute in the other solution.
If the solute concentration outside the cell is lower than inside the cell, these solutes cannot cross the membrane, so the solution is hypotonic to the cell.
The cell membrane consists of a phospholipid bilayer containing embedded proteins present between these two solutions where a hypotonic solution has a relatively low concentration of solutes.
Thus, B side is hypertonic. It will gain water. C is Phospholipid layer.
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Question 1
Which of the following explains how scientists know that current global warming is related to human activities?
Atmospheric carbon has increased much faster than in the past.
There were no greenhouse gases in the atmosphere in the past.
There was more methane in the atmosphere 6,000 years ago.
There is more water vapor in the atmosphere today than the past.
Question 2
Which of the following is not a future impact of global warming?
Sea level falling
Less freshwater
Human migration
Disrupted ecosystems
Answer:
First answer it might be the first one I do not know if it is correct .Second answer The last one d
Explanation:
Because if even one part of the ecosystem collapse the hole ecosystem will collapse in generation genius website there is a video about it go check it out
Glucose break down during cellular respiration.
O True
O False yes
Describe a hypothetical result of the fluctuation test that would have supported the hypothesis that mutations occur in response to an environmental challenge, and explain how this result was different from the observed result described above
In order to support the hypothesis that mutations occur in response to an environmental challenge, the experiment in question would have to show an increase in mutation rates shortly after the environmental challenge was introduced.
When we test a hypothesis, we perform an experiment and gather data over the course of the testing. In order to obtain evidence that supports a hypothesis, we have to ensure that only one variable is changing and be sure to repeat the experiment to confirm the values measured.
Taking this into account, a hypothetical result of the fluctuation test that would support the hypothesis of mutations in reaction to environmental challenges would be to measure a spike in mutation rates in the generation following an environmental challenge, and then continue to do so with future post-challenge generations.
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In 3-5 sentences, describe the advantages and disadvantages of these maps in modeling mitosis.
Answer:
Explanation:
you haven't put the image, however mitosis is the splitting of one cell into two identical daughter cells (duplicating the DNA) - hope this helps!
Drag each item to indicate whether it exhibits fracture or cleavage.
Answer:
From left to right
Explanation:
Cleavage, cleavage, fracture
The first item exhibit a cleavage. The second item exhibit a cleavage. The third item exhibit a fracture.
In mineral science, Cleavage is the process by which a mineral breaks or splits through smooth planes with a pattern because the material is stratified in a layered pattern. It generally seems regular since it fractures along its plane of weakness.
A fracture happens when a mineral splits with fractures and does not produce a particular definite shape. It frequently emerges in an erratic and irregular pattern.
From the three picture given, the first and the second item exhibit cleavage, and the third item exhibit fracture.
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Explain why water is essential for the light reactions.
Answer:
During the process of photosynthesis, six molecules of carbon dioxide and six molecules of water react in the presence of sunlight to form one glucose molecule and six molecules of oxygen. The role of water is to release oxygen (O) from the water molecule into the atmosphere in the form of oxygen gas (O2).
Explanation:
Water is important for photosynthesis because it the source of hydrogen for the sugars created through photosynthesis
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What's biology?
Biology is a natural sciences that deals with the study of living things.
Answer:
True
Explanation:
You study plants, animals, and cells in biology if I'm not mistaken.
Can someone fill in the blank thank you will give brainliest
Answer:
gene and protein
Explanation:
The first blank is a gene the second one is protein
Some animal species are divided into what
A.varieties
B.sub species
C.identical species
D.twin species
Answer:
YEssir
Explanation:
cause it is
The small size of cells
A. Allows for efficient transport of materials
B. Causes food to be broken down slowly
C. Slows down the removal of wastes
D. Allows for fewer cell organelles
Answer:
A
Explanation:
this is because, in smaller organism their SA/V ratio is large hence they have efficient transport of materials within their cells
Practical applications of reproductive cloning include
A) producing identical herds for agriculture.
(B) producing genetically identical animals for "control animals in research
C) restocking populations of endangered animals.
D) All of the above.
Answer:
(B) producing genetically identical animals for "control animals in research
In gymnastics, a gymnast must be able to balance on a balance beam. What is the best explanation for what forces are acting on the gymnast on a balance beam? (2 points)
The forces are balanced when the force of gravity pulling you down is the same as the force of the balance beam pushing you up.
The forces are unbalanced when the force of gravity pulling you down is the same as the force of your legs pushing you up.
The forces are balanced when the force of gravity pulling you down is stronger than the force of the balance beam pushing you up.
The forces are unbalanced when the force of gravity is reduced to the same force as the balance beam pushing you up.
Answer:1
Explanation:Because gravity always pulls you down even when your standing on an object.
which describes fat?
A. a lipid that stores energy
B. a nucleic acid that directs cell function
C. a protein that speeds up a chemical reaction
D. a carbohydrate that produces energy
Answer:
The answer is A
Explanation:
a lipid that stores energy
what regulates the growth and development of all the body cells
Original dna: CTGCAA
MUTATED DNA: CGCAA
THIS IS AN EXAMPLE OF
Albinism is caused by a recessive mutation. If two albino mice mate and produce offspring with normal pigmentation, what could you conclude about the parental mutations
Answer: A geneticist studies a series of families in which both parents are normal and at least one child has albinism. The geneticist reasons that both parents in these families must be heterozygotes and that albinism should appear in of the children of these families. To his surprise, the geneticist finds that the frequency of albinism among me children of these families is considerably greater "Than . Can you think of an explanation for the Thigher-than-expected frequency of albinism among These families?
Explanation:
A hummingbird may need to consume up to 50% of its body weight in sugar each day, just to meet its energy needs. Some of this energy is stored and some is used for metabolic activities, but much of the energy is
A)
converted into amino acids needed for the production of starch
B)
released as heat energy back into the hummingbird's environment
C)
changed into radiant energy, which can be used by plants for photosynthesis
D)
used to synthesize inorganic compounds necessary for cellular respiration
Answer:
A
Explanation:
What are some possible applications of therapeutic cloning?
Answer:
Hey mate....
Explanation:
This is ur answer....
Other applications of therapeutic cloning include the diagnosis of epigenetically triggered cancer and the tailoring of a treatment using SCNT, the creation of animal models of human diseases, and could eventually lead to tissue engineering of organs de novo.
Hope it helps!
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Hey, I need help with these questions please:
Answer:
on the human body
Explanation:
i think.....
1. In human beings, a downward-pointed frontal hairline ("widow's peak") is a heritable trait. A
person with a widow's peak always has at least one parent who also has this trait, whereas
people with a straight frontal hairline may occur in families in which one or even both parents
have widow's peaks. When both parents have a straight frontal hairline, all children also have
a straight hairline. Using A and a to symbolize alleles for this trait, what is the genotype of an
individual without a widow's peak? (Show your work)
The genotype of an individual without a widow's peak would be aa.
A person with widow's peak has. at least a parent with the trait. When both parents have a straight frontal hairline, all the children also have a straight frontal hairline.The above features are indications that widow's peak is a dominant trait.
Since A and a are used to represent the alleles, AA or Aa will be the genotype of individuals with widow's peak while only aa will be the genotype of individuals with straight frontal hairlines.
In other words, individuals without a widow's peak will have aa as genotypes.
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what type of weather is typically associated with the air pressure system near Salem
Answer:
According to common weather maps of the region surrounding Salem, Massachusets, the weather typically associated with the air pressure system is rain.
Explanation:
Given the nature of warm air and its tendency to rise, warmer regions tend to fall under the low-pressure system category. These systems, due to the movement of the warm air, have lower pressure at their center than in the areas surrounding them. As the wind blows towards the low-pressure air systems, the cooler and warmer air meet within the atmosphere, which causes the water vapor to condense and form clouds. Oftentimes, these clouds then precipitate, causing rain.
Down's syndrome occurs because of a(n)
missing sex chromosome
extra sex chromosome
additional 21st chromosome
additional 18th chromosome
Answer:
C.Additional 21st chromosome
Explanation:
Hope this helped :)
During replication, the genetic material of an organism has developed an error which is now part of the genome in its gamete cells. What is the most likely result of this mutation?
(A) Its offspring will inherit a new set of genetic material each generation.
(В) Its offspring will inherit the mutation if it does not prevent reproduction.
(C) Its offspring will revert to the genetic material of an evolutionary ancestor.
(D) Its offspring will revert to the original genetic material from the previous generation.
Answer:
B please mark brainliest if correct
Explanation:
The closing on your ad gives details about your services.
True
False
Answer:
True
Explanation:
In the closing, often a brief explanation is given on the company's name what they do how u can contact them and maybe some other information
P.s I do not take this subject
The processes by which a molecule can be extracted and processes by which a molecule can be isolated
Answer:
Extraction is the first step to separate the desired natural products from the raw materials.
solvent extraction, distillation method, pressing and sublimation
Isolation can be achieved from polyherbal formulation but it will be rather difficult and would involve complex purification steps .
Explanation:
Have a great day!
If you make mutations in the nuclear localization signal of a nuclear protein, what will happen to the protein
Answer:
What would happen if the operator sequence of the trp operon contained a mutation that prevented the repressor protein from binding to the operator? a. In the absence of tryptophan, the genes trpA-E will not be transcribed. b. In the absence of tryptophan, only genes trpE and trpD will be transcribed. c. In the presence of tryptophan, the genes trpA-E will be transcribed. d. In the presence of tryptophan, the trpE gene will not be transcribed.
Explanation: