Answers
Answer:
Their future children can have blood group AB, O, A or B
Explanation:
since the husband had blood group= Heterogeneous A means AO
and,
the wife's blood group= Heterogeneous B or BO
so by crossing between them, we get this result.
Related Questions
Many male birds will expend a great deal of energy building nests. Females will mate with the males who build the best nests. This is best described as an example of ____.
a. natural selection
b. sexual selection
c. runaway selection
d. an invasive species
e. disruptive selection
Answers
Answer:
The correct answer is option B. sexual selection.
Explanation:
Sexual selection is a special type of natural selection proposed by Charles Darwin. According to this type of natural selection in which a particular sex organism chooses the opposite sex member of the species to mate with on the basis of the preferable traits and compete with the other members of the opposite sex.
Here female birds choose those male birds who build the best nests, it is an example of natural selection.
Explain the contribution of antigenic determinant in false negative and false positive test
Answers
Answer:
The contribution of the antigenic determinant is given below:
Explanation:
Antigenic determinant or epitope is the part of the antigen that is recognized by the immune cells or antibodies such as the B- cells by binding to these cells and evokes the response in the host. The antibodies bind to the epitope segments only not to the entire antigen protein.
A false-positive test is a test where the result suggests that an individual has a specific condition but in reality not having such condition. opposite in the false-negative So, the antigenic determinant binds to the specific antibodies and shows wide significance to reduce the false-negative or false-positive.
Which organelle makes lipids?
Answers
Answer:
endoplasmic reticulum
Explanation:
The endoplasmic reticulum is an organelle that is responsible for the synthesis of lipids and the modification of proteins.
Peroxisomes
Peroxisomes are metabolic organelles involved in bile acid synthesis, as well as the metabolism of glyoxylate, dicarboxylate, amino acids and lipids
All of the following events occur during prophase in mitosis except
WILL MARK BRAINLIEST
A. Condensation of DNA
B. Crossing over
C. Pairing of chromosomes
D. Spindle formation
Answers
All of the following events occur during prophase in mitosis except crossing over (Option B)
Mitosis can be divided into four phases: prophase, metaphase, anaphase, and telophase.During prophase, the chromatids condense into chromosomes, thereby making them visible. The mitotic spindle is a structure composed of microtubule proteins that segregate the chromosomes in mitosis. This structure is formed in prophase.In Prophase homologous pairs of chromosomes are paired together. In metaphase, these chromosomes are lined up at the equator of the cell and sister chromatids are attached to the spindle fiber.Crossing over (or recombination) is the exchange of genetic material between non-sister chromatids that occurs during prophase I of meiosis.In conclusion, condensation of DNA, the pairing of chromosomes and, spindle formation occur during prophase, whereas crossing over occurs in prophase I of meiotic cell division (Option B).
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A student wants to know what effect temperature will have on the germination rate of radish seeds. To test this, she obtains 3 petri dishes and 60 radish seeds. She places 20 seeds in the first petri dish and stores it at room temperature. She places another 20 seeds in the second dish and places it in the freezer. She places 20 seeds in the third petri dish and places the dish in an incubator. Over the next two weeks, she waters the dishes daily and records the number of seeds germinate. At the end of the experiment she calculates the germination rate for the seeds at each temperature.
Hypothesis: ____________________________
Experimental Group: ____________________________
Control Group: ____________________________
Manipulated Variable (IV): ____________________________
Responding Variable (DV): ____________________________
Constants: ____________________________
Answers
Answer:
Hypothesis: IF the temperature is high, THEN the germination rate of radish seeds will increase.
Experimental Group: 20 Seeds in petri-dishes placed in the freezer and incubator each
Control Group: 20 seeds stored at room temperature
Manipulated Variable (IV): TEMPERATURE
Responding Variable (DV): GERMINATION RATE
Constants: Amount of water, same amount of time (2 weeks)
Explanation:
- The hypothesis is a testable explanation given to an observed problem. A possible hypothesis is IF the temperature is high, THEN the germination rate of radish seeds will increase.
- Independent or manipulated variable is the variable that is changed or manipulated variable in an experiment. The TEMPERATURE is the independent variable in this case.
- Dependent or responding variable is the variable that is measured in an experiment. In this case, the dependent variable is the GERMINATION RATE
- The experimental group is the group that receives the experimental treatment. In this case, the experimental group is the 20 Seeds in petri-dishes placed in the freezer and incubator each.
- The control group is the group that does not receive the experimental group. In this case, the control group is the 20 seeds stored or placed at room temperature.
- Constants are the variables that are kept unchanged throughout the experiment. In this case, the constants are Amount of water, same amount of time (2 weeks)
Answer:
GIVE ME MY POINTS NOW
Explanation:
Lateralization refers to the
a. number of neurons produced during prenatal development.
b. organizational structure of the peripheral nervous system.
c. specialization of the two hemispheres of the cerebral cortex.
d. plasticity of the spinal cord.
Answers
Which line points to the myelin sheath?
Answers
Myelin Sheath is an insulator on the axon
Hope that helps! :)
Answer:D
Explanation:
10. According to Bohr's model of the atom, electrons behave like....
A. Waves on a vibrating string
B.Planets orbiting the
C.sun light energy in a vacuum
Answers
B.Planets orbiting hiiiiii
which two maps would you use if you wanted to determine the tallest mountain in the United States?
A. Topographic map
B. Road map
C. Relief map
D. Resource map
Answers
Answer:
A and C
Explanation:
What are the functions of centrioles
Answers
Answer:
Centriol play a major role in cell division (mitosis)
Explanation:
Help coordinate cell division (only in animal cells)
Which of the following statements is NOT true regarding the nebular hypothesis?
Question 1 options:
A) A large cloud of hydrogen gas and dust begins to collapse under its own gravity.
B) The collapsing cloud begins to spin.
C) The spinning, collapsing cloud expands into a ball.
D) As the material coalesces in the center, it becomes dense, compresses, and heats up.
Answers
A
A large cloud of hydrogen gas and dust begins to collapse under its own gravity.
The incorrect option is "a large cloud of hydrogen gas and dust begins to collapse under its own gravity"
What is the nebular hypothesis?The most widely accepted theory in cosmogony to explain how the Solar System formed and evolved is the nebular hypothesis. It implies that gas and dust orbiting the Sun are what created the Solar System. The nebular theory proposes that a rotating cloud of material called a nebula, composed primarily of light components, flattened into a protoplanetary disk and developed into a solar system made up of a star and circling planets.Immanuel Kant developed the hypothesis.In 1900, Chamberlain and Moultan hypothesized that a wandering star's approach to the sun caused a cigar-shaped extension to separate from the solar surface.Learn more about the nebular hypothesis here:
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what is Janus green b
Answers
Answer:
Janus Green B is a basic dye and vital stain used in histology.
Explanation:
how do mutations affect our communications?
Answers
Explanation:
When a mutation alters a protein that plays a critical role in the body, it can disrupt normal development or cause a medical condition. A condition caused by mutations in one or more genes is called a genetic disorder. In some cases, gene mutations are so severe that they prevent an embryo from surviving until birth.Over time, a mutation might take place in one of the descendant cells, causing increased activity of a positive cell cycle regulator. The mutation might not cause cancer by itself either, but the offspring of this cell would divide even faster, creating a larger pool of cells in which a third mutation could take place.
The two main zones within the A climate are
Answers
Answer:
The Earth has three main climate zones: tropical, temperate, and polar. The climate region near the equator with warm air masses is known as tropical. In the tropical zone, the average temperature in the coldest month is 18 °C.
The climate has three main zones such as tropical, temperate, and polar.
What are Earth's climatic zone?
A climate zone refers to a condition by observing different factors like temperature, humidity, precipitation, season and natural vegetation of an area.
Earth's climate zones is surrounded by the horizontal belts of different climates such as tropical, dry, temperate, continental, and polar zones.
Firstly, Tropical climate zones which present near the Equator of earth and have high temperatures and high precipitation, while Dry or arid climate zones shows high temperatures and little annual precipitation.
Similarly temperate climate zone observed Earth’s middle latitudes and shows wider temperature and seasonal variations are more distinct.
Continental climate zone observed in mid-latitudes, shows swing of temperatures from cold in winter to warmer, where as polar climate zones shows harsh climate which cannot to support vegetation.
Hence, major zones are tropical, temperate, and polar.
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What is the structure shown in the figure?
Nucleic Acids
Carbohydrates
Proteins
Lipids
Answers
Answer:
lipids
Explanation:
What is the keystone species
Answers
Answer:
a species on which other species in an ecosystem largely depend, such that if it were removed the ecosystem would change drastically
Explanation:
Answer:a species on which other species in an ecosystem largely depend, such that if it were removed the ecosystem would change drastically.
Explanation:
The American Beaver (Castor canadensis) is one example of a keystone species in North America. In any arrangement or community, the “keystone” is considered one of the most vital parts. In a marine ecosystem, or any type of ecosystem, a keystone species is an organism that helps hold the system together.
Which of the following things is common to all living organisms?
Answers
Answer:
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. When viewed together, these characteristics serve to define life.
Explanation:
LIQUID DENSITY COLUMN
-Olive Oil
-Vegetable Oil
please help me with this question thanks:)
Answers
Answer: Vegetable oil
In the diagram of the nitrogen cycle, which number represents nitrogen
2 points
gas?
Terrestrial
cycling
Animals
68
7
Decomposition
2
Uptake
of amino
acids
ΝΗ,
4
оо
Answers
Answer:
The illustration below shows translation in progress. The orange structure represents a ribosome and the dark grey ones labelled A and
B represent 2 tRNA. Fill in the blanks in the next sentence and answer the short essay question that follows.
A
5'-AGGGACUAUGAACAUUUACCAACUACGGUGGCGUUAGAC
Explanation:
A __________________ is a place holder or object where you can store a value or piece of data named by you
When a patient comes to a hospital with severe dehydration, doctors will give
them an IV filled with a salt-water solution called saline, which is isotonic with
the body's blood cells.
Why is the patient not given pure water?
Answers
Answer:
The red blood cells could burst.
Explanation:
If they are given pure water, the IV fluid will be hypotonic to the blood cells. That means water will end the red blood cells by osmosis, from a high concentration outside to a lower concentration inside.
This will result in the red blood cells becoming swollen and even potential bursting.
pleasseeee help...........
Answers
Answer:
The theory of plate tectonics states that the Earth's solid outer crust, the lithosphere, is separated into plates that move over the asthenosphere, the molten upper portion of the mantle. Oceanic and continental plates come together, spread apart, and interact at boundaries all over the planet. It was proposed by Alfred Wegener.
Explanation:
During the cell cycle, DNA replication must occur?
A) Before the cell divides
B) Immediately following
cytokinesis
C) During mitosis
D)All of the Above
Answers
A dihybrid cross experiment is carried out in pea plants. The traits being observed are flower color and stem length. In the F2 generation, 81 plants have purple flowers and long stems, 27 plants have purple flowers and short stems, 27 plants have white flowers and long stems, and 3 plants have white flowers and short stems.
Which traits are recessive?
A.purple flowers, long stem
B.purple flowers, short stem
C.white flowers, short stem
D.white flowers, long stem
Answers
Answer:
c
just took test
Explanation:
white flowers, short stem
Excess carbon gasses released into the atmosphere cause additional radiation and Earth's average temperature to increase. This phenomenon is known as
Answers
Answer:
Green house gases and global warming
You have been looking at meiosis beginning with a diploid cell that has the genotype AaSs. The alleles in the haploid gametes produced by meiosis are
Answers
Answer:
AS, As, aS, as
Explanation:
Meiosis is the cell division that involves the production of daughter cells or gametes with a reduced number of chromosomes. i.e. diploid (2n) - haploid (n).
According to Gregor Mendel in his law of Segregation, the alleles of a gene will separate into gametes in such a way that only one allele will be present in each sex cell. Hence, in this diploid cell with genotype AaSs, the alleles will separate into the haploid cell in the following genotype proportion:
AS, As, aS, and as
10 POINTS PLZ ANSWERRRR
Which of the following best describes non-matter?
A substance that is either a solid, liquid, or gas
Any material that has a length and a volume Anything with no mass that takes up no
space Something that takes the shape of a container
Answers
Answer:
c is the answer in my opinion .
Explanation:
Its because non matter has neither volume nor mass and no space also.
Answer:
Matter is something that takes up space so the answer is Anything that does not take up space
Explanation:
In the correct order, list each structure of the pig an egg/fetus will pass through from its site of production through fertilization, fetal development, and birth.
not in order options:
urogenital opening
ovary
oviduct
vagina
uterus
Answers
Describe how a rainforest can reach a point when it cannot be restored by secondary ecological succession
Answers
Answer:Although the secondary forest will be low in diversity and poorly developed, the forest cover will be adequate for some species to return (assuming they still exist). The solution must be based on what is feasible, not overly idealistic, and depends on developing a new conservation policy built on the principle of sustainable use and development of rainforests. Beyond the responsible development of rainforests, efforts to rehabilitate and restore degraded forest lands along with the establishment of protected areas are key to securing rainforests for the long-term benefits they can provide mankind.
Explanation:
i lloke dit up online because i have not did this yet
A very high damaged leads to no restoration of rainforest by secondary ecological succession.
A rainforest can reach a point when it cannot be restored by secondary ecological succession when the large portion of the rainforest is destroyed and most of diversity is vanished. At this time, restoration is impossible due to very high damages.
Ecological resilience is the ability of an ecosystem to be restored through secondary ecological succession after a severe disturbance. Rainforest have a high biodiversity that helps it to resist damage but at a certain limit so we can conclude that very high damaged leads to no restoration of rainforest by secondary ecological succession.
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The majority of pesticides do not have a residual effect (i.e., not persistent; lose chemical activity) in the soil.
a) True
b) False
Answers
Answer:
B- False
Explanation:
Pesticides can contaminate soil, water, turf, and other vegetation. In addition to killing insects or weeds, pesticides can be toxic to a host of other organisms including birds, fish, beneficial insects, and non-target plants. Soil can be degraded and the community of organisms living in the soil can be damaged by the misuse or over use of pesticides. Some pesticides are more toxic to soil organisms than others.
Hope this helps!
1. Which of the following does not absorb moisture readily ?
a.cotton
b.linen
c.viscose
d.acetate
e.nylon
Answers
Nylon does not absorb moisture readily.
What is nylon?Nylon is a synthetic fibre."It is made from reacting carbon-based chemicals found in coal and petroleum in a high-pressure, heated environment."It looks somewhat like silk.It is water repellent.Hence, the correct option is e. nylon.
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