Answer:
0.6
Explanation:
According to hardy-weinberg principle,
P2+2pq+q2=1
P+q=1
q=1-p
Given that Allele R frequency is 0.4
and p represent the dominant allele
P=0.4
P2=0.4^2 = 0.16 for genotypic frequency
Since p+q=1
q=1-p
where q stands for recessive allele r frequency and q2 stands for genotypic frequency for allele r
q= 1-0.4= 0.6
q2=0.6 ^2
q2=0.36
Hardy-Weinberg principle states that are used to calculate the genetic variation of a population at equilibrium.
The frequency of the resistance allele in the cotton bollworm is 0.6.
Hardy-Weinberg equation can be given as:
P² + 2PQ + Q² = 1
where,
P = dominant allele (R)
Q = recessive allele (r)
Frequency of R allele = 0.4
From the equation:
P + Q = 1
or,
Q = P - 1
Genetic frequency of the R allele = P² = 0.4 x 0.4 = 0.16
Substituting the values:
Q = 1 - 0.4
Q = 0.6
Q² = 0.36
Thus, the frequency of the resistance allele will be 0.6.
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consider this animal cell.
a) to temporarily store water, waste products, food, and other cellular material.
b) to produce proteins for the cell.
c) to move proteins and other substances through the cell.
d) to contain digestive enzymes that break down waste material and debris in the cell.
This organelle labeled is called the rough endoplasmic reticulum. It consists of channels that interconnect. On the outside, the rough endoplasmic reticulum contains ribosomes that play a role in protein synthesis
In intramembranous ossification, the model or template on which the bone forms is Group of answer choices mesenchyme tissue elastic cartilage hyaline cartilage fibrocartilage
Answer:
Mesenchymal tissues.
Explanation:
Intramembranous ossification is process that allow the formation of bone from the fibrous membrane where bone tissues are created. It is the direct conversion of mesechymal tissues into bones. This process take place in the bone of the skull where mesenchymal tissues differentiate into cartilage and latter replaced by bones. Tye flat bones of the face, cranial bones and clavicles are formed by intramembranous osssification
homestyler in the regulation of an organism's internal environment to maintain conditions suitable for life
The question is incomplete as the nature of question is not clear, however the correct question is as follows:
homeostasis is the regulation of an organism's internal environment to maintain conditions suitable for life. homeostasis requires....
Answer:
The correct answer is - Homeostasis requires balances between many factors in the body such as the body temperature, chemical and physical balance, pH etc
Explanation:
Homeostasis is the ability of an organism to regulate or maintain its internal environment or conditions according the condition require for survival of organism or cell.
It is the characteristic feature of living organisms and life to adapt or maintain the equilibrium of cell's chemical, physical environment.
Thus, the correct answer is - Homeostasis requires balances between many factors in the body such as the body temperature, chemical and physical balance, pH etc
Which best describes biogeographic isolation?
Answer:
Biogeographic isolation is the separation of two populations of the same species due to physical factors. It may lead to evolution, as the groups will adapt to their new circumstances, which may be dramatically different between the two locales.
During which eon did oxygen begin to build up the most in Earth’s atmosphere? a.)Phanerozoic b.)Proterozoic c.)Hadean d.)Archean
Answer:
b) Proterozoic eon
Proterozoic builds an oxygen layer in the earth's atmosphere.
What is a Proterozoic zone?The Archean Eon, the oldest of the two Precambrian periods, is older than the Proterozoic Eon. The Paleoproterozoic (2.5 billion to 1.6 billion years ago), and Mesoproterozoic (1.6 billion to 1 billion years ago).
All of the continents' recognized proterozoic rocks are significant sources of metallic ores, including iron, gold, copper, uranium, and nickel. The atmosphere and oceans underwent substantial alteration during the Proterozoic.
The fossilized remains of bacteria, blue-green algae, and the first oxygen-dependent organisms,the the Ediacarana fauna, may all be found in the Proterozoic rocks.
Therefore, Proterozoic builds an oxygen layer in the earth's atmosphere.
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Which activity is part of managing water resources
studying water to see whether it is polites
taking a long hot bath to say warm
drinking water and using it for swimming and boating
transporting water to areas where it is needed
Answer:
The correct answer is - transporting water to areas where it is needed
Explanation:
Water Resources Management (WRM) is the way toward developing, planning, and managing water assets, as far as both water amount and quality, over all water uses.
Water resources management is a significant issue from different retrospectives, for example, improvement of water bodies for future, assurance of accessible water bodies from contamination and over exploitation.
Water management can be done through storage in dams; redirecting water from overabundance zones to shortage zones through waterways linking; falsely recharging ground water; desalinating ocean water; towing chunks of ice from the Antarctic to water shortage locales; controlling contamination and recovering dirtied water through reusing; and cloud seeding.
Thus, the correct answer is - transporting water to areas where it is needed.
enzymes ___ the activation energy threshold required to start a chemical reaction lower or raise
Answer:
lower
Explanation:
Enzymes are chemical substances or biological molecules that catalyze biological reactions by lowering the activation energy threshold required to start such reactions.
The activation refers to the minimum energy that must be conquered by the reactants in a chemical reaction in order to cross over to the product's side.
Enzymes work by lowering this energy and hence, making the crossing over to the product's side faster than normal. They are not themselves used up in reactions and can always be recovered and reused.
Correct answer: lower
what is 6.9 times 10 to the 7th power
Answer:
69000000
brainlest please and its acually not hard you just have to mutiply everything yk
Answer:
69000000
Explanation:
Since there are seven zeros in powers of ten notation it would be ten million
10000000 times 6.9 will give you 69000000
Which of the following statements is correct?
a) Insulin suppresses the activity of glycogen synthase
b) Insulin mediates glucose uptake in the brain
c) "Prediabetes" is a condition characterized by an increased risk for the future development of type 2 diabetes
d) The rise in insulin concentration after meal ingestion is reduced in type 1 but not in type 2 diabetes
Answer:
C) Prediabetes is a condition characterized by an increased risk for the future development of type 2 diabetes.
Explanation:
Prediabetes is a condition where there's a higher than normal blood sugar level but not high enough to be classified as type 2 diabetes. It is most likely to progress to type 2 diabetes if there are no lifestyle changes to mitigate the risk.
This progression can be stopped if the necessary lifestyle changes such as physical exercise, eating a healthy diet, weight control etc, are implemented.
Prediabetes doesn't usually present with any signs and symptoms though one possible sign is the darkening of the skin on the neck, armpit and elbows.
When signs like frequent urination, excessive thirst and fatigue are noticed, it is most likely the onset of type 2 diabetes.
Hair of the axilla can be considered what
Answer:
A. Determinate
B. Indeterminate
The answer is Determinate hair
Explanation:
Hair of the axilla which is also referred to as axillary hair is found under the arm.
A hair is referred to as being determinate if it is being replaced from time to time as a result of it getting old and wearing out.
The underarm hair is an example of the type of hair which undergoes the determinate type of growth process.
Indeterminate hair growth such as the one on the scalp continues to grow continuously and rarely wears out.
True or false isotopes of the same element have a different number of neutrons with the same number of protons
Answer:
True, isotopes of the same element have a different number of neutrons with the same number of protons.
A student notices that there are situations in which her avocados go bad very quickly. She decides to test the effect of temperature on how fast the avocado ripens. She purchases 3 mini avocados and 3 regular sized avocados. She places 2 mini avocados in the refrigerator and 2 regular sized avocados on the windowsill. She then placed the last mini avocado and regular sized avocado in a paper bag under the sink. Is this a controlled experiment? Why or why not?
Answer:
The last mini avocado and regular sized avocado in a paper bag under the sink is this a controlled experiment.
Explanation:
The last mini avocado and regular sized avocado in a paper bag under the sink is this a controlled experiment because it contains both the mini avocado and regular sized avocado in a paper bag under the sink, which is believed to have high temperature.
So to indeed know whether temperature has effect on the avocado, the control experiment is the mini and regular sized avocado in the paper bag under the sink.
Hope it helps.
What response do you expect to happen as the body tries to restore homeostasis
Answer:
Cells swell as water moves into them. Cells swell as water moves out of them. Cells shrivel as water moves out of them.
hope this answer is correct
What's Inside a Black Hole?
Ethnographic evidence has revealed that traditionally, Pawnee women worked wood, and among the Hidatsa, women made boats. Cases such as these suggest that:_________
Answer:
patterns of division of labor by gender are culturally general—not universal
Explanation:
Based on this information it can be said that cases such as these suggest that patterns of division of labor by gender are culturally general—not universal. Meaning that division of labor by gender would be drastically different depending on the surrounding culture, such as in this case women worked wood and made boats, yet in another culture such as American Culture, it is Men that worked such manual labor jobs.
Enzymes have specific _____ that determine their function. carbohydrates starches lipids shapes
Which of these viral cytopathic effects is most likely to be associated with the development of cancer?
Answer:
loss of contact inhibition
Explanation:
From the different options provided the one that is associated with the development of cancer is loss of contact inhibition. Contact Inhibition is a process of arresting cell growth when the cells come in contact with each other causing them to stop proliferating when they form a monolayer. Loss of contact inhibition would allow cells to continue replicating which leads to cancer.
Hi where is the Mumbai tribe from
As the bone collar thickens, the ____________ forms, and secondary ossification centers appear in the ____________ .
Answer:
Medullary cavity, epiphyses
Explanation:
During the thickening of the bone collar, the penetration of Osteoblasts into the decomposing cartilage occurs thereby replacing it with spongy bone giving rise to a primary ossification center.
Osteoclasts then brings abiut the nreak down of the spongy bone to open up the medullary cavity. The cartilage found in the epiphyses then continue to grow increasing the bone's length.
What happens to electrons when pigments in Photosystem II absorb light? They combine with oxygen and hydrogen to produce water. They are pumped across the membrane into the thylakoid. They move through an electron transport chain to Photosystem I. They become excited and break down the pigments to release ATP.
Answer:
The correct answer is They move through an electron transport chain to Photosystem I.
Explanation:
Luminous energy is trapped by a chlorophyll molecule in the Photosystem II. When the pigment molecules absorb light, electrons get in a higher energy level. These excited electrons go through the electron transport chain to an inferior energy level in the photosystem I. When the excited electrons leave photosystem II, they are replaced by new electrons that are extracted from the water molecules. As electrons go through the transport chain, their released energy is used to produce ATP molecules. Luminous energy absorbed in the photosystem I move the electrons to another electron acceptor from where they are transported again and used to produce NADPH molecules. When electrons are eliminated from Photosystem I, they are replaced by new electrons that are coming from the photosystem II through the transport chain.
The anode heel effect is more pronounced :
A with rotating anodes.
when the collimator is not completely ope
C when the collimator is open wide
D a the anode
Answer:
At the Anode.
Explanation:
Anode heel effect is the lower field intensity that occur at the anode compare to the cathode which is as a result of lower x-ray emissions from the target material at angles perpendicular to the electron beam.
It occur at the anode because the effect is stem when x-rays photons is absorbed before they leave the anode where they are produced.
A scientist is examining the-function of macromolecules in a cell. She notices that movement of large molecules into and out of cells is disrupted when she damages one specific type of macromolecule. Which macromolecule has she most likely damaged.
Answer:
Proteins are the macromolecules damaged by the scientists while performing experiment.
Explanation:
Lipids and proteins are two components that makes the cell membrane and help them to play their role. Proteins found in between the bilayer of lipids and assists the bilayer transferring of various substances in and out of the cell also known as carrier molecules.
Hence, when scientist was examining the macromolecules, the proteins were get damaged and thus the movement of materials also get interrupted.
Thus, to the given question protein is the answer.
Answer:
The answer is D
Explanation:
Got it right on Edge
78. What color pigmentation is associated with pregnancy mask?
brown
blue
b. yellow
d. red
In Type I diabetes the body cannot make ______ and in Type 2 diabetes the hormone ________ doesn't work properly.
(Choose the best option.)
1. Estrogen and insulin
2. Epinephrine and insulin
3. Insulin and glucagon
4. Insulin and insulin
Answer: 4. Insulin and insulin
Explanation:
Diabetes indicates that the level of glucose, or sugar, is very high in the blood. It occurs when the pancreas doesn't produce enough insulin or when the body doesn't use insulin properly (called insulin resistance). Insuline is a hormone that helps glucose get into the cells to give them energy, and glucose comes from the food and drinks being the main source of energy. Sometimes a person has both problems. In both cases, the result is that glucose does not enter the cells and builds up in the blood.
In type 1 diabetes, the pancreas does not produce insulin, Without insulin, too much glucose stays in the blood and over time, high blood glucose levels can cause serious problems in the heart, eyes, kidneys, nerves, gums, and teeth.
With type 2 diabetes, the most common type, the body does not make or use insulin well. There is a higher risk of type 2 diabetes if the person is older, obese, have a family history of diabetes, or don't exercise. Also, having pre-diabetes also increases that risk because people who have pre-diabetes have higher than normal blood sugar but not enough to be considered diabetic.
So, in type 1 diabetes there is an absolute lack of insulin due to the destruction of the pancreatic islets. While type 2 diabetes is a metabolic disorder characterized by hyperglycemia (high blood sugar) in the context of insulin resistance.
Label the parts of the brain
Answer:
not sure if this is what you were looking for.
Explanation:
Which correctly lists three agents that loosen and carry away rock during the erosion process?
animals,heat,sedimentheat
heat, wind, plants
plants, animals, wind
sediment, heat, plants
Answer:
Plants, animals, wind
Explanation:
I used the process of elimination. Heat and sediment cannot move dirt and/or rocks
Animal and plant movement is a factor in biological weathering. For instance, a plant may grow in a gap in a rock and, as its roots spread, cause the crack to widen. Even you have the potential to weather! Thus, option C is correct.
What loosen and carry away rock during erosion process?The dirt is kept in place by plants. Some animals scrape pebbles as they eat to weather them. Other creatures alter the surface of the Earth by digging into it and shifting stuff.
The majority of the vegetation can be destroyed by an excessive number of animals, which speeds up erosion.
Earthen materials are worn away during erosion, a geological process in which they are moved by wind or water.
Therefore, Earthen materials are worn away during erosion, a geological process in which they are moved by wind or water.
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Question 2 of 10
How are geothermal and wind power similar?
A. They both use solar cells to produce electricity.
B. They are both only useful in the desert.
C. They both produce greenhouse gases.
D. They both convert kinetic energy to electrical energy,
SUBMIT
Answer:
D. They both convert kinetic energy to electrical energy
Explanation:
wind power converts kinetic energy to electrical energy, by using wind to propel the fan
geothermal converts kinetic energy to electrical energy, by heating up an object, and then the heated objects will create molecules and atoms that will move really, really fast and the cycle will continue while the geothermal creates energy and stores the energy in the movement of the object
( plz mark me as brainliest, that would be most appreciated! )
They both convert kinetic energy to electrical energy.
What is Kinetic energy?By using wind to drive the fan, wind power transfers kinetic energy to electrical energy.
By heating an object, geothermal transforms kinetic energy into electrical energy. The heated objects then produce molecules and atoms that move incredibly quickly, and the cycle continues as the geothermal creates energy and stores the energy in the movement of the object.
Kinetic energy is the energy that an object has as a result of motion. As long as an object is moving at a steady speed, its kinetic energy won't change.
Therefore, They both convert kinetic energy to electrical energy.
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Recall that GG and Gg individuals are gray bodied, while gg individuals are black bodied and that LL and Li individuals have long wings, while ll individuals have vesgial wings. What are the phenotypes of the resulng oHspring and what are the percentages of these phenotypes (2 pts)?
Answer:
- Gray-bodied with long wings: 56.25%.
- Gray bodied with vestigial wings: 18.75%.
- Black-bodied with long wings: 18.75%.
- Black-bodied with vestigial wings: 6.25%.
Explanation:
Hello,
In this case, we can write the involved two-factor Punnet square as:
GL Gl gL gl
GL GGLL GGLl GgLL GgLl
Gl GGLl GGll GgLl Ggll
gL GgLL GgLl ggLL ggLl
gl GgLl Ggll ggLl ggll
Thus, we can find the following phenotypes:
- Gray-bodied with long wings: 9.
- Gray bodied with vestigial wings: 3.
- Black-bodied with long wings: 3.
- Black-bodied with vestigial wings: 1.
In such a way, considering each square having a 6.25% percent, the resulting offspring has the following percentages:
- Gray-bodied with long wings: 56.25%.
- Gray bodied with vestigial wings: 18.75%.
- Black-bodied with long wings: 18.75%.
- Black-bodied with vestigial wings: 6.25%.
Best regards.
Exposing skeletal muscle fibers to ________ removes ions and ATP from the cells and disrupts the troponin-tropomyosin complex such that it can no longer block the active sites on the actin molecules.
Answer:
Glycerine/Glycerin
Explanation:
This is a colourless ,odourless syrup liquid which is sweet to taste .it is non toxic,it is also refers to as glycerol.Its medicinal uses includes anti bacteria and anti viral for wound treatments,and as a marker in liver diseases.
Chemically it contains three hydroxyl (OH) group bonded together.This structure is an adaptation for dissociation in water and also accounts for its hygroscopic nature.
When a muscle fibre is exposed to Glycerine,these cells contracts,reducing the space among the cells.Hence the fibres contraction is affected,follow by reduction in length.
Basically, during glycerine is applied to muscle cells,this substance punctures the sacolemma, creating holes.The latter aid the diffusion of ca+ and ATPs across this membrane in the muscle cells.
Generally the ca+ from the Sacroplasmic reticulum binds with the troponin,leading to the change in its shape to bind with the actin filament.Protein tropomyosin also binds with the actin filaments on different positions. Thus these proteins forms the troponin-tropomyosin complex on the filament.The proteins exposes part of the actin molecules, as the binding site for the myosin head cross bridges between the two filaments types.
Hydrolysis of ATP supplies energy for the withdrawal of the myosin head from the actin filaments and its tilts back to the filaments to ensure contraction and relaxation of muscles muscles fibres.
Now.if glycerine created holes in the sacrolemma,Ca+ ions will be reduced,ATPs molecules hydrolysis will be also be affected,therefore, troponin-tropomyosin complex can not be formed.Thus actin filaments would not be exposed,for myosin head to bind, (therefore the myosin binding site is blocked on the actin molecules)this eventually prevent muscles contractions without the nervous transmission.
Rarely, the conjugation of Hfr and F− cells produces two Hfr cells. Explain how this event takes place.
Answer:
"F" on account of E.coli show the fertility factor. Cells possessing this factor (called donors) hold the ability to move the hereditary material over the strains by a procedure called conjugation. F-factor exists as a free element (cell is called episome) or integrated into bacterial chromosome (cell is called Hfr-High frequency recombinant). Cells with no F factor are recipients.
In a Conjugation between a F+ and F-cell just F factor from F+ cell gets moved o produce two F+ cells. But during a Hfr and F-conjugation as the F factor is incorporated into the chromosome and by the intrinsic idea of F factor to get moved the Hfr cells attempt to move their whole genetic material across and there are two outcomes wherein one case there is a fragmented exchange of hereditary material and the recipient cell remain F-and when there is a finished exchange of hereditary material the cell becomes Hfr yet this is uncommon as the time taken for the total exchange of hereditary material is excessively long for the cells to remain contact.