Answer:
The change of color in the sample wells with the color in a known sample
Explanation:
Enzyme-linked immunosorbent assay (ELISA) is a technique widely used in molecular biology laboratories to measure antibodies, antigens and/or proteins in the samples that are being analyzed. This assay uses antibodies and color changes in order to identify target substances. The ELISA assay is heterogeneous because the antibody or the antigen is immobilized in a solid support composed by wells of microtiter plates. This assay uses chromogenic reporters and substrates that produce color changes, thus evidencing the presence of antigens which can be species-specific.
In a monohybrid cross, if the gene for tall (T) plants was incompletely dominant over the gene for short (t) plants, what would be the predicted result of crossing an intermediate (Tt) plant with a tall (TT) plant? (Hint: You may want to complete a Punnett square.) 50 percent tall, 25 percent intermediate, 25 percent short 25 percent tall, 50 percent intermediate, 25 percent short 50 percent tall, 50 percent intermediate 100 percent intermediate
Answer:
It would be 50/50
Explanation:
If you do appointment square with TT and Tt you would have two sets of TT and two sets of Tt
B.
Consider the image of the male reproductive organs. Where is the diagram would sperm be produced?
A)
А
B)
E
F
D)
Answer:
A
Explanation:
The same as eggs being produced in the ovaries in a female, the balls of a male are like ovaries which produces the sperm in men.
Can u help me please
Moving up the food chain, the energy available to the organisms decreases due to metabolic heat. (You can add the second law of thermodynamics into it, if you want)
For example, in the rules of tens, the plants start with 100% of the energy but the fi red t level consumers gain 90% of the energy due to the fact energy transfers through heat.
Because of the change is available energy, consumers at the higher levels of the food chain are forced to hunt larger amounts of prey to sub stain themselves.
Which of the following would be expected to have plentiful access to potable water?
a. Africa
b. China
C. Europe
d. South America
Answer:
c. Europe
Explanation:
I just went to quizlet.com
Europe is expected to have plentiful access to potable water.
What is Potable water?Thus is the type of water which is suitable for human consumption. Europe is believed to have plentiful access to potable water.
This is because of less pollution access to aquifers which provide clean sources of water for consumption by the people hence the reason why option C was chosen as the most appropriate choice.
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What is one difference between you and a protist?
A) Your cells have a nucleus; those of protists do not.
B) During your life, you grow considerably in size; a protist doesn't.
C) All your cells can carry out all life functions on their own; those of protists cannot.
D.) Your cells are capable of division, those of a protist are not.
Answer:
A) Your cells have a nucleus; those of protists do not.
Explanation:
Your cells are eukaryotes (which DO have nuclei) and protists don't.
Help need now!
(1) Define homeostasis.
(2) What are the two ways a substance can move through a cell’s membrane?
(3) What is passive transport? Will particles move to an area of higher or lower concentration?
(4) How do large molecules move across the cell membrane through facilitated diffusion?
(5) Describe what happens during osmosis.
(6) What are aquaporins?
(7) What is active transport?
(8) Why is energy needed for active transport? Will particles move to an area of higher or lower concentration?
(9) Describe endocytosis.
(10) Describe exocytosis.
Answer: 1Homeostasis is the ability to maintain a relatively stable internal state that persists despite changes in the world outside. All living organisms, from plants to puppies to people, must regulate their internal environment to process energy and ultimately survive. 2Water, carbon dioxide, and oxygen are among the few simple molecules that can cross the cell membrane by diffusion (or a type of diffusion known as osmosis ). Diffusion is one principle method of movement of substances within cells, as well as the method for essential small molecules to cross the cell membrane. 3In passive transport, substances simply move from an area of higher concentration to an area of lower concentration, which does not require the input of energy. Concentration gradient, size of the particles that are diffusing, and temperature of the system affect the rate of diffusion. 4In facilitated diffusion, molecules diffuse across the plasma membrane with assistance from membrane proteins, such as channels and carriers. A concentration gradient exists for these molecules, so they have the potential to diffuse into (or out of) the cell by moving down it.5: Osmosis: In osmosis, water always moves from an area of higher water concentration to one of lower concentration. ... Water has a concentration gradient in this system. Thus, water will diffuse down its concentration gradient, crossing the membrane to the side where it is less concentrated. 6Aquaporins, also called water channels, are channel proteins from a larger family of major intrinsic proteins that form pores in the membrane of biological cells, mainly facilitating transport of water between cells. 7In cellular biology, active transport is the movement of molecules across a cell membrane from a region of lower concentration to a region of higher concentration—against the concentration gradient. Active transport requires cellular energy to achieve this movement.8During active transport, substances move against the concentration gradient, from an area of low concentration to an area of high concentration. This process is “active” because it requires the use of energy (usually in the form of ATP). It is the opposite of passive transport.9Endocytosis definition and purposes. Endocytosis is the process by which cells take in substances from outside of the cell by engulfing them in a vesicle. ... Endocytosis occurs when a portion of the cell membrane folds in on itself, encircling extracellular fluid and various molecules or microorganisms.10Exocytosis describes the process of vesicles fusing with the plasma membrane and releasing their contents to the outside of the cell, as shown in Figure below. Exocytosis occurs when a cell produces substances for export, such as a protein, or when the cell is getting rid of a waste product or a toxin
Explanation:
A dilute solution has a
concentration of
molecules
O A. high, water
B. high, dissolved
C. low, water
D. equal, water and ion
It's Letter A.
Explanation:know why? it because molecules has a Higher concentration of water molecules.
When a solution is dilluted, more water is added to make the solution less the high concentrated!Answer:
Dilute solutions have a high concentration of water molecules.
If you help me , thank you ur literally a amazing person
What types of cells may not undergo mitosis at all?
A. hair
B. brain
C. skin
D. cheek
Answer:
brain
Explanation:
How do sea urchins alter the ecosystem if their population gets too big?
The overpopulation of the sea urchin population might magnify the impact of the negative growth conditions of kelp beds by eating what's left or what grows in the next few years.
Name the element that has the following number of particles 26 electrons 29 neurons 26 protons
the answer is iron(Fe)
The living material that lines the inside of one's cheek is —
The living material that lines the inside of one's cheek is mucous membrane
a Bryophyta is called amphibian plant .
Answer:Bryophytes are called amphibians of the plant kingdom because these plants though live in soil but they need water for sexual reproduction.
Explanation:
Which is a disaccharide?
1. glucose 2. fructose 3. sucrose 4. cellulose
Answer:
surcrose
Explanation:
I googled it
Answer:
3. sucrose
Explanation:
Which of the following observations demonstrates that light waves are electromagnetic and not mechanical?
Group of answer choices
A. sunlight can pass through gas
B. sunlight can pass through a solid
C. sunlight can pass through a vacuum
D. sunlight can pass through a liquid
Answer:
c...........
Explanation:
Answer:
b
Explanation:
cuz im different
Farmers often spray chemicals on their crops to keep insects away. Some insects die from these chemicals, but some insects
continue to live. What will MOST LIKELY happen to the insects that live?
A)
They will be unable to lay eggs.
B)
They will start eating other crops.
They will produce more insects that can survive.
D)
They will be able to protect themselves from all types of chemicals.
Why are Punnet squares specific to each offspring?
PLEASE HELP. I WILL GIVE BRAINLIEST AND A LOT OF POINTS.
Answer:
Genetic linkage is a phenomenon where two genes exist close to each other on the same chromosome. ... In addition, when a single trait is determined by multiple genes and the effect of each of these genes is graded, Punnett squares cannot accurately predict the distribution of phenotypes in the offspring.
Explanation:
Hi thank you for the points and also follow me of you can
Susan, a mother with Type B blood, has a child with Type B blood. She claims that Craig, who has
Type O blood, is the father. He claims that he cannot possibly be the father. The judge aced her
BIO30 class, so she rules that:
a: susan cant be the real mother of the child; there must be an error at the hospital
b: susan is right and craig must pay child support
c: all of the above
d: its’s impossible to reach a decision based on the limited data available
Answer:
A child with type B blood can have a mother with type B blood and a father with type O blood so the judge grants her request and decides due to Susan is right and Craig must pay child support (option b).
Explanation:
Susan is right in this case because her son with type B blood may have a mother with type B blood and a father with type O blood.
Blood types, according to the ABO system, depend on the existence of surface antigens A or B —Types A, B and AB— or their absence in the erythrocyte membrane.
In the inheritance of blood groups A and B are co-dominant, while the absence of antigens —type O— is a recessive trait.
Assuming that Susan has a genotype B/B and that Craig has a genotype O/O:
Alleles O O
B B/O B/O
B B/O B/O
So it is very likely that the child is Craig's son and Susan is right.
3
Based on the thin layer of sediment on his flooded farm,
James Hutton concluded that strata:
A Are made of large rocks
B
Settle in vertical layers
С
Are formed by catastrophes like floods and earthquakes
D
Take many thousands of years to form
Answer:
c
Explanation:
know it
what is the function of genes?
Answer:
they help in the transfer of hereditary characteristics from parents to offspring
What is the genotype of a person with type A blood, who had a father with type O blood?
Question 5 options:
A: IAIB
B: IAIA
C: IAi
D: ii
Answer:
C
Explanation:
Father/mother must each donate a blood gene to the child. Father must have a genotype of ii because O blood is recessive. Thus, the kid must have one O type gene. However, the kid has A type blood overall, so the kid must have an A (dominant) gene as well. Thus, the answer is IAi.
What is the perimeter of the figure?
36 in.
42 in.
44 in.
48 in.
Answer:
170 in
Explanation:
Add all values
Answer:
42
Explanation:
Compare and contrast what happens in mitosis and meiosis.
Mitosis and Meiosis-their differences and similarities
Similarities: both mitosis and meiosis are multistage processes. The stages are interphase, prophase, metaphase, anaphase and telophase. The same general processes occur in each of these stages for mitosis and meiosis. Interphase is cell growth and DNA replication in preparation for cell division
Differences:(please find it attached below)
The similarities between mitosis and meiosis are as follows:
Both types of cell division take place in the nuclei of the cell.Both involve some common stages like prophase, metaphase, anaphase, and telophase. Both forms of cell division initiate from a diploid parental cell. The occurrence of DNA synthesis happens in both sorts of cell divisions.What is Meiosis?Meiosis may be defined as the type of cell division that occurs in the germs cells of an individual. In this type of cell division, one parental cell produces four haploid daughter cells. It is also known as reductional division.
The differences between mitosis and meiosis are as follows:
Mitosis produces two daughter cells of diploid nature from a parental cell. These daughter cells are genetically identical to their parental cells. Meiosis produces four daughter cells of haploid nature from a parental cell. These daughter cells are genetically different from their parental cell.Therefore, it is well described above.
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Spirilla, a type of bacteria, are a organelles b prokaryotes c mitochondria d eukaryotes
Answer:
B procaryotes
Explanation:
I just got it right
Bacteria are ubiquitous, mostly free-living organisms often consisting of one biological cell. They constitute a large domain of prokaryotic microorganisms. Therefore, option (B) is correct.
Bacteria are minute, single-celled creatures found in millions.
Bacteria come in a wide variety of varieties. One approach to categorize them is according to form. The fundamental forms are three.
Every form group contains a wide range of variants.
Therefore, option(B) is the correct answer.
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What conclusion can you make about the skeletal structure of these two organisms? A. They share a common ancestor, but they’re different species. B. They’re the same species. C. They’re different species with no evolutionary relationship. D. The four-legged organism directly evolved from the two-legged organism.
Answer:
a
Explanation:
a
It's is A. They share a common ancestor, but they're a different species.
How do birds and dogs both use DNA as instructions for building their bodies
even though they are very different organisms?
O A. Their DNA has the same nucleotide bases, but in different
patterns.
B. Their DNA has different types of nucleotide bases.
C. Their DNA has different lengths.
D. Their DNA is made of different types of molecules.
Answer:
DNA is language of life, which uses only four letters (=nitrogenous bases). In this language only three-letter words are allowed (=codons)
Ali is AB blood type and Sarah is also AB blood type. What is the chance they will have a child with blood type A?
Answer:
25 percent
Explanation:
Answer:
yesss
Explanation:
if parent 1 is AB and and parent 2 is also AB blood Group then thier child's possible Blood Group is A, B, AB
Thus, Ali and Sarah's Child can be with blood type A
-TheUnknownScientist
Hello this is due today and it is science.
I will mark brainliest!
Answer:
[tex]\boxed {\boxed {\sf Cellular \ respiration}}[/tex]
Explanation:
This process is known as cellular respiration.
This occurs in the mitochondria (the powerhouse of the cell) in both plant and animal cells. The equation is:
[tex]C_6H_{12}O_6+6O_2->6CO_2 + 6H_2O+38 \ ATP[/tex]
Glucose (obtained from eating food in animals and photosynthesis in plants) and oxygen is converted into carbon dioxide, water, and energy. The energy is used in the organisms for movement, growth, and repair.
Due today! Plss Help!
(1)What are the components of the cell theory?
1.
2.
3.
(2)What did Van Leeuwenhoek observe, and how did it impact the development of the cell theory?
(3)What did Hooke create, and what impacts did he make on the development of the cell theory?
(4)Briefly describe the importance that Brown had on the development of the cell theory.
(5)What discoveries did Schleiden publish and what impact did he have on the development of the cell theory?
(6)What impact did Schwann have on the development of the cell theory?
(7)What did Von Roelliker discover?
(8)What did Virchow add to the development of the cell theory?
(9)Describe Pasteur’s experiments and the observations he made.
(10)What do all living things have?
Answer:
1.
1) All living organisms are composed of one or more cells.
2)The cell is the basic unit of structure and organisation in organisms.
3) Cells arise from pre-existing cells.
2. The first observations of bacteria and protozoa. His extensive research on the growth of small animals such as fleas, mussels, and eels helped disprove the theory of spontaneous generation of life.
3. law of elasticity (Hooke's law), for his first use of the word cell in the sense of a basic unit of organisms (describing the microscopic cavities in cork), and for his studies of microscopic fossils, which made him an early proponent of a theory
4. His discovery of the nucleus and its role helped to put together the cell theory, which states that all living organisms are composed of cells, and cells come from pre-existing cells.
5. He published his findings and called the process he saw “binary fission”. He concluded that all plant tissues are composed of cells and that an embryonic plant arose from a single cell. He declared that the cell is the basic building block of all plant matter.
6. Schwann demonstrated the same fact for animal tissues, and in 1839 concluded that all tissues are made up of cells: this laid the foundations for the cell theory.
7. that the sperm and egg were composed of cells and that humans are formed of cells from beginning to end.
8. In 1855, he further developed his ideas by publishing his famous aphorism omnis cellula e cellula which became a part of the foundation for cell theory. Virchow's theory stated that just as animals are unable to arise without previously existing animals, cells are unable to arise without previously existing cells.
9. Pasteur's experiment showed that microbes cannot arise from nonliving materials under the conditions that existed on Earth during his lifetime. The experiment had to do with Pasteur adding nutrient broth to flasks, bent the necks of the flasks into S shapes, and then boiled the broth to kill any existing microbes.
10. All living organisms share several key characteristics or functions: order, sensitivity or response to the environment, reproduction, growth and development, regulation, homeostasis, and energy processing.
Explanation:
Hope thise helped.
compare the size of bacteria to a cheek cell.
Answer: Got this from google... Cheek cells are much larger than the bacteria cells. The bacteria cells are found INSIDE the cheek cells. The bacteria cells are capsule-shaped and the cheek cells are round. Hope i answered the question right... Hope you all stay safe and have a great day!!! :D
The seed plants became dominant during the late ___ when the climate became ___.
The seed plants became dominant during the late Paleozoic era when the climate became drier and more arid.
The dominance of seed plants during the late Paleozoic era was driven by a combination of their unique reproductive strategies, water-conserving adaptations, and the changing climate that favored their survival and proliferation.
During the late Paleozoic era, which lasted from approximately 298 million years ago to 252 million years ago, seed plants, including gymnosperms and later angiosperms, became the dominant plant group on Earth.
This era is also known as the "Age of Seed Plants" due to the significant diversification and success of seed-bearing plants.
One of the main factors that contributed to the rise of seed plants during this time was the changing climate. The late Paleozoic era saw a shift towards drier and more arid conditions, with the decline of the swampy and humid environments that characterized earlier periods.
Seed plants have several adaptations that allowed them to successfully colonize and dominate these drier environments. One key adaptation is the ability to produce seeds, which are reproductive structures containing embryos and stored nutrients.
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